AMW037-1.0.2R - SILICON LABS

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

Zentri AMW037

Data Sheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

AMW037 • AMW037 Datasheet

Disclaimer

While the information provided in this document is be-

lieved to be accurate, it is under development and Zentri

reserves the right to make changes without further no-

tice to the product described herein to improve reliabil-

ity, function, or design, and makes no guarantee or war-

ranty concerning the accuracy of said information, nor

shall it be responsible for any loss or damage of whatever

nature resulting from the use of, or reliance upon, such

information. Zentri makes no warranties of any kind,

whether express, implied or arising by custom or course

of trade or performance, and specifically disclaims the

implied warranties of title, non-infringement, merchant-

ability, or fitness for a particular purpose.

No part of this document may be copied, reproduced,

stored in a retrieval system, or transmitted, in any form

or by any means, electronic, mechanical, photographic,

or otherwise, or used as the basis for manufacture or sale

of any items without the prior written consent of Zentri.

Trademarks

Zentri and the Zentri logo are trademarks of Zentri. Other

trademarks in this document belong to their respective

owners.

Document Number: ADS-MW037-101R

Release Date: August 29, 2017

Contact

https://www.silabs.com/about-us/contact-us

About this Data Sheet

This document provides information on the

AMW037 802.11b/g/n Wi-Fi networking module from

Zentri. Specifications for the module I/O, peripherals the

WLAN subsystem were compiled from vendor

datasheets and measured data.

Organization

This data sheet is organized into the following sections:

1 General Description ................................................ 1

2 Block Diagram ......................................................... 2

3 Electrical Specifications .......................................... 3

4 WLAN RF Specifications .......................................... 6

5 Pinout and Signal Descriptions ............................... 8

6 Design Guidelines ................................................. 11

7 Regulatory Certification ....................................... 15

8 Packaging, Handling and Storage, RoHS ............... 21

9 Ordering Information ........................................... 24

10 Revision History & Glossary.................................. 25

11 References ............................................................ 26

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

AMW037 Data Sheet

Embedded Wi-Fi Networking Solution

General Features

 Self-contained ultra-low power Wi-Fi module with

industry standard SSL/TLS secure TCP/IP network

stack and PCB Trace antenna.

 Integrated SPI-serial flash for software upgrades

and user accessible read/write file system

Wi-Fi

 Single band 2.4GHz IEEE 802.11b/g/n 1x1 Wi-Fi

transceiver

 Includes support for all Wi-Fi security modes includ-

ing Open, WEP, WPA, and WPA2-PSK

Microprocessor

 32-bit application processor

 Operates up to 160MHz core frequency

Interfaces*

 UART: 1 x 4-wire, 1 x TX only up to 4.5Mbit/s

 GPIO: Up to 8 GPIOs (overlaid with peripherals)

 A/D converter: 1 x 10-bit resolution

 PWM: Up to 4 PWM outputs

 Wake-up: Wake pin for ultra-low power operation

*Some interfaces share module pins

Operational & Radio

 Single operating voltage : 3.3V (typical)

 Operational Temperature Range: -40°C to +85°C

 Size : 16.5 x 24.8 x 2.6mm (0.65” x 0.98” x 0.10”)

 Weight : 0.03 oz (1g)

 Current consumption @ 3.3V, 25°C

- Standby : 0.9mA

- Deep sleep / RTC : 20 / 60µA

- Sleep (Memory Retention) : 0.31mA

- Wi-Fi Powersave : 0.86mA (DTIM = 3)

- Active receive : 65mA

- Active transmit :

 100mA @ +0dBm

 200mA @ +18dBm

 Maximum RF transmit power

- 802.11b/g : +20 dBm

- 802.11n : +16 dBm

 Minimum Receive sensitivity

- 802.11b/g : -93 dBm

- 802.11n : -85 dBm

Applications

 Industrial, M2M and Home Automation

- Environmental monitoring

- Energy monitoring

- Wireless sensing, remote data logging

- HVAC, power, light, & thermostat control

- Appliance control

 Security

- Cameras, Doors/Window monitoring

- Alarms, Smoke Detectors

- Door and entry control

 Health & Fitness

- Fitness Equipment

- Home health monitoring e.g. weight scales

 Consumer

- Audio, Toys, Robots

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

ZentriOS-WL Firmware Features

The ZentriOS-WL firmware supplied with the AMW037

provides a wide range of features beyond the underly-

ing hardware, and supports application development

via its command API.

For complete documentation of ZentriOS-WL, see:

https://docs.zentri.com/zentrios/wl/latest/

Software APIs

 ZentriOS-WL command API

Interfaces

 Serial (UART, remote terminal)

 SoftAP and WLAN client (not concurrent)

Servers

 TCP, UDP, HTTP, DHCP, DNS

 HTTP Server with RESTful API

 Fully customizable mobile responsive Web ap-

plication with JavaScript and Python libraries

Clients

 TCP, TLS, NTP, DHCP, DNS

 HTTP(S) client

 Websocket client

Setup

 Multiple Wi-Fi setup options, including via serial

command and Web setup with SoftAP

Peripherals and Sensors

 GPIOs for control, indication and monitoring

 Automated broadcast and streaming of sensor

data

 Local caching of sensor data

Update and Recovery

Wireless OTA (Over-the-Air) update to remote

manage firmware using the Zentri DMS (Device

Management Service)

System Management

 System configuration and monitoring via setting

and getting a wide range of variables

 Configurable power states

Sleep/wake timers

File System

 Read/write file system

 Storage of large files

 HTTP download to file system, HTTP upload

from file system

General Description, Section 1 AMW037 • AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

Contents

1 General Description ............................................... 1

1.1 ZentriOS .......................................................... 1

2 Block Diagram ........................................................ 2

3 Electrical Specifications .......................................... 3

3.1 Absolute Maximum Ratings ............................ 3

3.2 Recommended Operating Conditions ............ 3

DC Operating Conditions ........................ 3

Environmental Conditions ...................... 3

3.3 Power Consumption ....................................... 4

3.4 Digital IO Characteristics ................................. 5

4 WLAN RF Specifications ......................................... 6

4.1 Summary WLAN Specifications ....................... 6

4.2 WLAN Specifications ....................................... 7

5 Pinout and Signal Descriptions .............................. 8

5.1 Pinout.............................................................. 8

5.2 Pin Description ................................................ 9

6 Design Guidelines ................................................. 11

6.1 Dimensions ................................................... 11

6.3 Recommended PCB Footprint ...................... 12

6.4 Routing Recommendations .......................... 12

6.5 Soldering Information ................................... 13

6.6 Application Examples .................................... 14

Operation using ZentriOS ..................... 14

7 Regulatory Certification ....................................... 15

7.1 United States ................................................ 15

Labeling and User Information

Requirements ....................................................... 15

RF Exposure .......................................... 16

Further Information .............................. 16

7.3 Canada .......................................................... 17

Labeling and User Information

Requirements ....................................................... 17

Further Information .............................. 18

7.5 Europe .......................................................... 19

Labeling and User Information

Requirements....................................................... 19

Further Information .............................. 19

7.6 Australia ........................................................ 20

Further Information .............................. 20

7.7 New Zealand ................................................. 20

Further Information .............................. 20

8 Packaging, Handling and Storage, RoHS .............. 21

8.1 Packaging ...................................................... 21

8.2 Handling & Storage ....................................... 21

8.3 RoHS Directive .............................................. 21

8.4 Tape and Reel Specifications ........................ 22

9 Ordering Information ........................................... 24

9.1 Ordering an Unspecified ZentriOS Version ... 24

9.2 Ordering a Specific ZentriOS-WL Version or a

Custom Firmware Version ........................................ 24

9.3 ZentriOS Version History .............................. 24

10 Revision History & Glossary ................................. 25

10.1 Revision History ............................................ 25

10.2 Glossary ........................................................ 25

11 References ........................................................... 26

General Description, Section 1 AMW037 • AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

1 General Description

The AMW037 module from Zentri provides an ad-

vanced stand-alone Wi-Fi and networking solution.

An integrated module avoids difficult RF layout and ena-

bles designers to rapidly embed Wi-Fi and secure net-

working functionality into virtually any device.

The ZentriOS embedded connected operating system,

pre-programmed into all modules, may be used to fast-

track module integration into end-products.

With dimensions of just 16.5mm x 23.5mm and a wide

temperature range, the module is suitable for integra-

tion into most embedded applications.

The Wi-Fi device includes an integrated RF transmit

power amplifier and provides superior Wi-Fi perfor-

mance and full compatibility with all 2.4GHz 802.11b/g/n

Wi-Fi networks.

The AMW037 microcontroller core operates at a fre-

quency of 160MHz.

The AMW037 module offers extensive I/O and periph-

eral interfaces listed below, and provides

additional interface combinations by leveraging

multiplexing and alternate function capabilities.

 1 x 4-Wire UART interface

 8 x GPIOs

 1 x 10-bit A/D converters

 4 x PWM outputs

 1 x ultra-low power wake input

The module is powered by a single 3.3V power supply.

Various powersave modes offer ultra-low power opera-

tion. Wake from low power sleep mode is possible using

IO pins or the internal real-time clock, and wake from ul-

tra-low power standby mode is achieved using the dedi-

cated wake pin.

The module has numerous modular approvals. See Sec-

tion 7, Regulatory Certification.

1.1 ZentriOS

This document is designed to cover the physical and

electrical characteristics of the AMW037 module. For

information on ZentriOS see:

http://docs.zentri.com/zentrios/wl/latest/

Block Diagram, Section 2 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

3v3

UART

GPIO

ADC

WAKE

Reset

Wi-Fi

SoC

40MHz

2 MByte

Serial Flash

AMW037

Antenna

2 Block Diagram

Figure 1 is a block diagram of the AMW037 module. The

main components of the module are a Wi-Fi System-on-

Chip (SoC) and the quad-SPI serial flash. The processor

and peripherals are driven by a 40MHz crystal. An on-

board 2 MByte serial flash chip may be used to store user

applications, data and configuration, and firmware im-

ages as part of the Zentri secure over the air (OTA) up-

date process.

Figure 1. AMW037 Architecture

Electrical Specifications, Section 3 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

3 Electrical Specifications

3.1 Absolute Maximum Ratings

CAUTION! The absolute maximum ratings in Table 1 and Table 2 indicate levels where permanent damage to the device

can occur, even if these limits are exceeded for only a brief duration. Functional operation is not guaranteed under

these conditions. Operation at absolute maximum conditions for extended periods can adversely affect long-term re-

liability of the device.

Table 1. Absolute Maximum Voltage Ratings

Symbol

Ratings

Min

Max

Unit

VDD

External power supply voltage

-0.3

3.6

Vin

Input voltage on any other GPIO pin

GND - 0.3

VDD + 0.4

Table 2. Absolute Maximum Environmental Ratings

Characteristic

Note

Min

Max

Unit

Storage Temperature

–

-40

+125

°C

Storage Humidity

Non-condensing (storage)

–

Electrostatic Discharge (HBM)

TEMP=25°C

Electrostatic Discharge (CDM)

TEMP=25°C

0.5

Maximum Soldering Temperature

IPC/JEDEC JSTD-020

260

°C

3.2 Recommended Operating Conditions

Functional operation is not guaranteed outside the limits shown in Table 3 and Table 4, and operation outside these

limits for extended periods can adversely affect long-term reliability of the device.

DC Operating Conditions

Table 3. Recommended DC Operating Conditions

Symbol

Ratings

Min

Typ

Max

Unit

VDD1

External power supply voltage

3.0

3.3

3.6

Notes:

1. The performance of the Wi-Fi subsystem is degraded significantly at low voltages

Environmental Conditions

Table 4. Recommended Environmental Conditions

Characteristic

Note

Min

Max

Unit

Ambient Temperature

Limited by crystal specification

-30

+85

°C

Electrical Specifications, Section 3 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

Characteristic

Note

Min

Max

Unit

Relative Humidity

Non-condensing (operating)

–

Notes:

1. If you require an extended temperature range, contact Zentri.

3.3 Power Consumption

Table 5. Power consumption (VDD_3V3, VDD_WIFI, VBAT @ 3.3V)

Parameters

Min

Typical

Max

Unit

Transmit @ +18dBm

200

Transmit @ +12dBm

150

Transmit @ +0dBm

100

Receive

Application running, radio off

Sleep

µA

Power up, 70ms boot time

Electrical Specifications, Section 3 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

3.4 Digital IO Characteristics

All digital IO pads are bidirectional, non-inverting and tri-state. Each pad includes an input and an output buffer with

tristate control inputs. When the AMW037 is powered down, all output enable signals can be set to hold high or low

to minimize power consumption.

The hold functionality introduces some positive feedback into the pad. Hence, the external driver that drives the pad

must be stronger than the positive feedback. The required drive strength is however small – in the range of 5uA.

Table 6. Digital IO Characteristics

Parameters

Min

Max

Unit

Input low voltage

-0.3

0.25 x VDD

Input high voltage

0.75 x VDD

3.6

Input leakage current

µA

Output low voltage

0.1 x VDD

Output high voltage

0.8 x VDD

Input pin capacitance

Maximum drive capability

WLAN RF Specifications, Section 4 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

4 WLAN RF Specifications

Unless otherwise stated, the specifications in this section apply when the operating conditions are within the limits

specified in Section 3.2, Recommended Operating Conditions. Functional operation outside these limits is not guaran-

teed.

All specifications are measured by connecting directly to either of the antenna ports via a short PCB trace with the

other antenna port terminated in 50 ohms.

4.1 Summary WLAN Specifications

Table 7. Summary WLAN Specifications

Feature Supported

Description

WLAN Standard

IEEE 802.11b/g/n 1x1 SISO

Frequency Band

2.412 GHz – 2.484 GHz

WLAN Channels

Channels 1 – 14

Data Rates

802.11b (1, 2, 5.5, 11 Mbps)

802.11g (6, 9, 12, 24, 36, 48, 54 Mbps)

802.11n (HT20 MCS0-MCS7)

WLAN RF Specifications, Section 4 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

4.2 WLAN Specifications

Table 8. WLAN Receiver Performance Specifications

Parameter

Condition/Notes

Min

Typical

Max

Unit

Frequency Range

–

2412

–

2484

MHz

Operating Temperature1

–

-40

–

+85

°C

Receive Sensitivity2

(8% PER for 1024 octet PSDU)

at either antenna port

1 Mbps DSSS

–

-98

–

dBm

11 Mbps CCK

–

-91

–

Receive Sensitivity2

(10% PER for 1000 octet

PSDU) at antenna port

6 Mbps OFDM

–

-93

–

dBm

54 Mbps OFDM

–

-75

–

Receive Sensitivity2

(10% PER for 4096 octet

PSDU) at either antenna port.

6.5 Mbps MCS0, HT20

65 Mbps MCS7, HT20

–

-85

-72

–

dBm

Transmit power @ 72.2Mbps

dBm

Transmit power @ 1MBps

dBm

Notes:

1. Operation below -20°C and above +65°C with parameter derating per Note 2

2. Derate receive sensitivity by 1.5dB for operation between temperatures of -40°C to -20°C and 65°C to 85°C

Pinout and Signal Descriptions, Section 5 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

5 Pinout and Signal Descriptions

5.1 Pinout

A top view of the AMW037 pinout is depicted in Figure 2. All dimensions are in thousands of an inch. A recommended

footprint is provided in Section 6.2.

Figure 2. AMW037 Pinout (TOP View – Pins NOT visible from top!)

Pinout and Signal Descriptions, Section 5 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

5.2 Pin Description

Table 9. AMW037 Pin Definitions

Name

Type1

Primary Function

Alternate & Other Function(s)

GND

Ground

VDD

Power Supply

+3.3V nominal

ADC

4-5

WAKE

(1k resistor to RESET_N)

GPIO_0

I/O

GPIO /

Factory Reset

PWM_0 (onboard 100k pull down)

GPIO_1

I/O

GPIO

PWM_1

UART_RX

I/O

UART_TX

I/O

Boot Control3

(onboard 10k pull down resistor)

GND

Ground

GPIO_2

I/O

GPIO

Boot Control3

DEBUG_UART_TX

(onboard 2.2k pull up resistor)

GPIO_3

GPIO

Boot Control3

(onboard 2.2k pull up resistor)

GPIO_4

I/O

GPIO

PWM2

Pinout and Signal Descriptions, Section 5 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

Name

Type1

Primary Function

Alternate & Other Function(s)

16-22

GND

Ground

GPIO_5

I/O

GPIO

25-28

RESET_N

RESET

GPIO_6

I/O

GPIO

UART_CTS

GPIO_7

I/O

GPIO

UART_RTS

CHIP_EN

Chip Enable

VDD = Enable module

GND = Deep Sleep Mode

(onboard 100k pull up)

34-44

GND

Notes:

1. I = Input, O = Output, S = Supply, A = Analog, NC = No Connection (Do not connect to ground)

2. The Wi-Fi Antenna pin is AC-coupled and has a nominal 50 ohms output impedance.

3. The Boot Control pins must be at the following levels immediately after a reset in order for the module to

boot correctly: UART_TX = GND, GPIO_2 = VDD, GPIO_3 = VDD

Design Guidelines, Section 6 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

6 Design Guidelines

6.1 Dimensions

Figure 3 - AMW037 Spectre Dimensions

Figure 4 - AMW037 Spectre Dimensions

Symbol

Imperial

(thou)

Tolerance

(thou)

Metric

(mm)

Tolerance

(mm)

101

±6

2.57

±0.15

±3

0.76

±0.08

±6

1.80

±0.15

975

±5

24.77

±0.13

133

±5

3.38

±0.13

433

±6

11.00

±0.15

358

±5

9.09

±0.13

650

±5

16.51

±0.13

±5

2.24

±0.13

472

±6

12.00

±0.15

±5

2.24

±0.13

Design Guidelines, Section 6 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

6.3 Recommended PCB Footprint

All dimensions in Figure 5 are in thousands of an inch unless otherwise marked.

Figure 5. AMW037 Recommended Footprint (Top)

A = 925mil (23.5mm)

B = 685mil (17.4mm)

C = 240mil (6.1mm)

D = 650mil (16.5mm)

E = 30mil (0.76mm)

F = 90mil (2.3mm)

G = 27.5mil (0.7mm)

H = 25mil (0.64mm)

I = 50mil (1.27mm)

J = 100mil (2.54mm)

K = 70mil (1.78mm)

6.4 Routing Recommendations

When designing a carrier board, the addition of ground fill directly underneath the AMW037 module, rather than signal

or power traces, is recommended. All ground pads adjacent to antenna pins must be connected to a solid ground

plane. Failure to comply with these recommendations may result in degraded performance of WLAN functionality.

Design Guidelines, Section 6 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

6.5 Soldering Information

Figure 6 - Recommended solder reflow profile

Figure 7 - Example solder reflow profile (AMW037-E03 evaluation board)

Design Guidelines, Section 6 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

6.6 Application Examples

Operation using ZentriOS

Each AMW037 module is pre-installed with and licensed to use ZentriOS-WL, Zentri’s feature-rich and reliable Wi-

Fi networking application. The module can be used with an external host microcontroller via the serial interface

command API.

To use ZentriOS-WL with a host processor, the module only requires an external connection to power and a UART

serial interface. A host processor connects to the UART (pins 10/11) as shown in Figure 8. Zentri recommends UART

hardware flow control (RTS/CTS) is used to improve the reliability of data communications. All required pull

up/down resistors are included inside the module.

For hardware design guidelines, see:

https://docs.zentri.com/hardware/zentri/amwx06/amwx06-hardware-design#pcb-layout

The general guidelines for the AMWx06 devices apply to all Zentri devices.

Figure 8. Using the AMW037 Module with ZentriOS and a UART serial interface

Regulatory Certification, Section 7 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

7 Regulatory Certification

The AMW037 module has been certified for operation in

various regulatory domains. This section outlines certifi-

cation information specific to the following countries

and regions:

 United States

 Canada

 Europe

 Australia

 New Zealand

The certifications listed in this section are valid at the

time of publication. For up-to-date information refer to

Zentri documentation online at:

https://docs.zentri.com.

All AMW037 test reports are available on the Zentri web-

site at:

https://docs.zentri.com/zentri/docresources#amw037

Should you require regulatory certification for the

AMW037 module in a country or region not listed, please

contact your local Zentri sales office or create a support

request via our website at

https://www.silabs.com/about-us/contact-us

7.1 United States

The Zentri AMW037 module has received Federal Com-

munications Commission (FCC) CFR47 Telecommunica-

tions, Part 15 Sub-part C “Intentional Radiators” modular

approval in accordance with Part 15.212 Modular Trans-

mitter approval. Modular approval allows the end user

to integrate the AMW037 module into a finished product

without obtaining subsequent and separate FCC approv-

als for intentional radiation, provided no changes or

modifications are made to the module circuitry. Changes

or modifications could void the user’s authority to oper-

ate the equipment. The end user must comply with all of

the instructions provided by the Grantee which indicate

installation and/or operating conditions necessary for

compliance.

The finished product is required to comply with all appli-

cable FCC equipment authorization, regulations, require-

ments, and equipment functions not associated with the

transmitter module portion. For example, compliance

must be demonstrated to regulations for other transmit-

ter components within the host product; to require-

ments for unintentional radiators (Part 15 Sub-part B

“Unintentional Radiators”), such as digital devices, com-

puter peripherals, radio receivers, etc.; and to additional

authorization requirements for non-transmitter func-

tions on the transmitter module (i.e. Verification, or Dec-

laration of Conformity) (e.g., transmitter modules may

also contain digital logic functions) as appropriate.

Labeling and User Information

Requirements

The AMW037 module has been labelled with a unique

FCC ID number, and if the FCC ID is not visible when the

module is installed inside another device, then the out-

side of the finished product into which the module is in-

stalled must also display a label referring to the enclosed

module. This exterior label can use wording as follows:

If the exterior label area is smaller than the palm of the

hand, the end product user manual must contain the

above statement. The user manual should contain the

following additional statement:

Contains FCC ID: 2ABPY-5B9198

This device complies with Part 15 of the FCC Rules.

Operation is subject to the following two conditions:

(1) this device may not cause harmful interference,

and (2) this device must accept any interference re-

ceived, including interference that may cause unde-

sired operation.

Regulatory Certification, Section 7 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

The Host Model Number (HMN) must be indicated at any

location on the exterior of the end product or product

packaging or product literature which shall be available

with the end product or online.

Additional information on labeling and user information

requirements for Part 15 devices can be found in KDB

Publication 784748 available at the FCC Office of Engi-

neering and Technology (OET) Laboratory Division

Knowledge Database (KDB) at the following website:

http://www.fcc.gov

For products available in the USA/Canada market, only

channels 1 to 11 can be operated. Selection of other

channels is not possible.

This module is intended for OEM integrators. The OEM

integrator is responsible for compliance in all the rules

that apply to the product into which this certified RF

module is integrated.

Additional testing and certification may be necessary

when multiple modules are used.

RF Exposure

All transmitters regulated by FCC must comply with RF

exposure requirements. OET Bulletin 65, Evaluating

Compliance with FCC Guidelines for Human Exposure to

Radio Frequency Electromagnetic Fields, provides assis-

tance in determining whether proposed or existing

transmitting facilities, operations or devices comply with

limits for human exposure to Radio Frequency (RF) fields

adopted by the Federal Communications Commission

(FCC). The bulletin offers guidelines and suggestions for

evaluating compliance.

If appropriate, compliance with exposure guidelines for

mobile and unlicensed devices can be accomplished by

the use of warning labels and by providing users with in-

formation concerning minimum separation distances

from transmitting structures and proper installation of

antennas.

The following statement must be included as a CAUTION

statement in manuals and OEM products to alert users

of FCC RF exposure compliance:

If the AMW037 module is used in a portable application

(i.e., the antenna is less than 20 cm from persons during

operation), the integrator is responsible for performing

Specific Absorption Rate (SAR) testing in accordance

with FCC rules 2.1091.

Further Information

Additional information regarding FCC certification and

use of the AMW037 module in the United States is avail-

able from the following sources.

 Federal Communications Commission (FCC)

http://www.fcc.gov

This equipment has been tested and found to com-

ply with the limits for a Class B digital device, pursu-

ant to part 15 of the FCC Rules. These limits are de-

signed to provide reasonable protection against

harmful interference in a residential installation. This

equipment generates, uses and can radiate radio fre-

quency energy and if not installed and used in ac-

cordance with the instructions, may cause harmful

interference to radio communications. However,

there is no guarantee that interference will not occur

in a particular installation. If this equipment does

cause harmful interference to radio or television re-

ception, which can be determined by turning the

equipment off and on, the user is encouraged to try

to correct the interference by one or more of the fol-

lowing measures:

 Reorient or relocate the receiving antenna.

 Increase the separation between the equip-

ment and receiver.

 Connect the equipment into an outlet on a cir-

cuit different from that to which the receiver is

connected.

 Consult the dealer or an experienced radio/TV

technician for help.

To satisfy FCC RF Exposure requirements for mobile

and base station transmission devices, a separation

distance of 20 cm or more should be maintained be-

tween the antenna of this device and persons dur-

ing operation. To ensure compliance, operation at

closer than this distance is not recommended.

The antenna(s) used for this transmitter must not

be co-located or operating in conjunction with any

other antenna or transmitter.

Regulatory Certification, Section 7 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

7.3 Canada

The AMW037 module has been certified for use in Can-

ada under Industry Canada (IC) Radio Standards Specifi-

cation (RSS) RSS-210 and RSSGen. Modular approval per-

mits the installation of a module in a host device without

the need to recertify the device.

Labeling and User Information

Requirements

Labeling Requirements for the Host Device (from Section

3.2.1, RSS-Gen, Issue 3, December 2010): The host de-

vice shall be properly labeled to identify the module

within the host device.

The Industry Canada certification label of a module shall

be clearly visible at all times when installed in the host

device, otherwise the host device must be labeled to dis-

play the Industry Canada certification number of the

module, preceded by the words “Contains transmitter

module”, or the word “Contains”, or similar wording ex-

pressing the same meaning, as follows:

The user documentation should contain the following in-

formation:

For products available in the USA/Canada market, only

channel 1~11 can be operated. Selection of other chan-

nels is not possible.

Pour les produits disponibles aux États-Unis / Canada du

marché, seul le canal 1 à 11 peuvent être exploités. Sé-

lection d'autres canaux n'est pas possible.

The Host Model Number (HMN) must be indicated at any

location on the exterior of the end product or product

packaging or product literature which shall be available

with the end product or online.

User Manual Notice for License-Exempt Radio Apparatus

(from Section 7.1.3 RSS-Gen, Issue 3, December 2010):

User manuals for license-exempt radio apparatus shall

contain the following or equivalent notice in a conspicu-

ous location in the user manual or alternatively on the

device or both:

Transmitter Antenna Notification (from Section 7.1.2

RSS-Gen, Issue 3, December 2010): User manuals for

transmitters shall display the following notice in a con-

spicuous location:

The above notice may be affixed to the device instead of

displayed in the user manual.

Contains transmitter module IC: 11685A-5B9198

This device complies with Industry Canada license-

exempt RSS standard(s). Operation is subject to the

following two conditions: (1) this device may not

cause interference, and (2) this device must accept

any interference, including interference that may

cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie

Canada applicables aux appareils radio exempts de

licence. L'exploitation est autorisée aux deux

onditions suivantes: (1) l'appareil ne doit pas

produire de brouillage, et (2) l'utilisateur de l'appa-

reil doit accepter tout brouillage radioélectrique

subi, meme si le brouillage est susceptible d'en com-

promettre le fonctionnement.

Under Industry Canada regulations, this radio trans-

mitter may only operate using an antenna of a type

and maximum (or lesser) gain approved for the trans-

mitter by Industry Canada. To reduce potential radio

interference to other users, the antenna type and its

gain should be so chosen that the equivalent isotrop-

ically radiated power (EIRP) is not more than that

necessary for successful communication.

Conformément à la réglementation d'Industrie Can-

ada, le présent émetteur radio peut fonctionner avec

une antenne d'un type et d'un gain maximal (ou infé-

rieur) approuvé pour l'émetteur par Industrie Can-

ada. Dans le but de réduire les risques de brouil-lage

radioélectrique à l'intention des autres utilisa-teurs,

il faut choisir le type d'antenne et son gain de sorte

que la puissance isotrope rayonnée équivalente

(p.i.r.e.) ne dépasse pas l'intensité nécessaire à

l'établissement d'une communication satisfaisante.

Regulatory Certification, Section 7 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

In the users manual of the end product, the end user has

to be informed to keep at least 20 cm separation with

the antenna while this end product is installed and oper-

ated. The end user has to be informed that the IC radio-

frequency exposure guidelines for an uncontrolled envi-

ronment can be satisfied.

The end user has to also be informed that any changes

or modifications not expressly approved by the manufac-

turer could void the user's authority to operate this

equipment.

User manuals for transmitters equipped with detach-

able antennas shall also contain the following notice in a

conspicuous location:

Immediately following the above notice, the manufac-

turer shall provide a list of all antenna types approved

for use with the transmitter, indicating the maximum

permissible antenna gain (in dBi) and required imped-

ance for each.

Further Information

Additional information may be obtained from the Indus-

try Canada website at http://www.ic.gc.ca

This radio transmitter IC ID 11685A-5B9198 has been

approved by Industry Canada to operate with the

built-in antenna type, with the maximum permissible

gain and required antenna impedance for each an-

tenna type indicated. Antenna types not included in

this list, having a gain greater than the maximum gain

indicated for that type, are strictly prohibited for use

with this device.

Le présent émetteur radio IC ID 11685A-5B9198 a été

approuvé par Industrie Canada pour fonctionner

avec l'antenne installé, et ayant un gain admissible

maximal et l'impédance requise pour chaque type

d'antenne.

Regulatory Certification, Section 7 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

7.5 Europe

The AMW037 module is a Radio Equipment Directive

(RED) assessed radio module that is CE marked and has

been manufactured and tested with the intention of be-

ing integrated into a final product.

The AMW037 module has been tested to Radio Equip-

ment Directive (2014/53/EU) and R&TTE Directive

(1999/5/EC).

Opinion has also been issued.

See AMW0x7 CE Reports

The R&TTE Compliance Association provides guidance

on modular devices in the document titled Technical

Guidance Note 01.

Labeling and User Information

Requirements

The label on the final product which contains the

AMW037 module must follow CE marking requirements.

The R&TTE Compliance Association Technical Guidance

Note 01 provides guidance on final product CE marking.

The end user manual or labelling should contain the fol-

lowing information:

This equipment complies with EU radiation exposure lim-

its set forth for an uncontrolled environment. This equip-

ment should be installed and operated with minimum dis-

tance 20cm between the radiator and your body.

Further Information

Further information may be obtained by searching for:

 European Conference of Postal and Telecommu-

nications Administrations (CEPT)

 Radio Equipment Directive (RED), which re-

places Radio and Telecommunications Terminal

Equipment (R&TTE)

Table 12. European Compliance Testing

Certification

Standard

Report Number

Date

Laboratory

Safety

EN 60950-1:2006, A11:2009, A1:2010,

A12:2011, A2:2013

L641926L244

20 July 2016

Sporton International Inc. Lab

EMF

EN 62311:2008

EA641926

26 May 2016

Sporton International Inc. Lab

EMC

EN 301 489-1 v2.1.1 (2016-11), Class B

EN 301 489-17 v3.1.1 (2016-11)

21274927_001

10 July 2017

TÜV Rheinland

EN 55022:2010/AC:2011, Class B

EN 55024:2010

EH641926

26 May 2016

Sporton International Inc. Lab

Radio

EN 300 328 v2.1.1 (2016-11)

21274937_001

10 July 2017

TÜV Rheinland

Notified

Body Opinion

G0M-1607-

5753-C-V01

26 July 2016

Eurofins

NOTE: To maintain conformance to the testing listed

in Table 12. European Compliance Testing, the mod-

ule shall be installed in accordance with the installa-

tion instructions in this data sheet and shall not be

modified.

When integrating a radio module into a completed

product the integrator becomes the manufacturer of

the final product and is therefore responsible for

demonstrating compliance of the final product with

the essential requirements of the R&TTE Directive.

Regulatory Certification, Section 7 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

7.6 Australia

Australian radio regulations do not provide a modular

approval policy similar to the United States (FCC) or Can-

ada (IC). However, AMW037 module test reports may be

used in part to demonstrate compliance in accordance

with ACMA Radio communications “Short Range De-

vices” Standard 2004 which references Australia/New

Zealand industry standard AS/NZS-4268:2012. AMW037

RF transmitter test reports may be used as part of the

product certification and compliance folder. For further

information regarding the availability of RF test reports,

please contact Zentri via our website at

https://www.silabs.com/about-us/contact-us.

Further Information

Additional information may be obtained from the Aus-

tralian Communications and Media Authority website at

http://www.acma.gov.au.

7.7 New Zealand

New Zealand radio regulations do not provide a modular

approval policy similar to the United States (FCC) or Can-

ada (IC). However, AMW037 module test reports may be

used in part to demonstrate compliance with the New

Zealand “General User Radio License for Short Range De-

vices”. New Zealand Radio communications (Radio

Standards) Notice 2010 references Australia/New Zea-

land industry standard AS/NZS-4268:2012. AMW037 RF

transmitter test reports may be used as part of the prod-

uct certification and compliance folder. For further infor-

mation regarding the availability of RF test reports,

please contact Zentri via our website at

https://www.silabs.com/about-us/contact-us.

Further Information

Additional information may be obtained from the New

Zealand Radio Spectrum Ministry of Economic Develop-

ment website at http://www.rsm.govt.nz.

Packaging, Handling and Storage, RoHS, Section 8 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

8 Packaging, Handling and Storage, RoHS

8.1 Packaging

Modules are shipped in cut tape, with ESD-safe packaging, or in reels.

For package quantity, see section 9, Ordering Information.

Reels are shipped enclosed inside a moisture resistant sealed bag. The shelf life of the sealed reel is 12 months at 40°C

and <90% Relative Humidity (RH). Please refer to the bag seal date and the following section for handling & storage.

Ensure that all modules are managed in accordance with Moisture Sensitive Level 3 (MSL3) per IPC/JEDEC J-STD-20.

If reflow is required, AMW037 modules must be baked first, according to Joint Industry Standard J-STD-033C.

8.2 Handling & Storage

CAUTION

MSL3 Sensitive Device!

The AMW037 module is a moisture sensitive device rated at Moisture Sensitive Level 3 (MSL3) per IPC/JEDEC J-STD-

20.

After opening the moisture sealed storage bag, modules that will be subjected to reflow solder or other high temper-

ature processes must be:

1. mounted to a circuit board within 168 hours at factory conditions (≤30°C and <60% RH)

2. continuously stored per IPC/JEDEC J-STD-033

Modules that have been exposed to moisture and environmental conditions exceeding packaging and storage condi-

tions MUST be baked before mounting according to IPC/JEDEC J-STD-033.

Failure to meet packaging and storage conditions will result in irreparable damage to modules during solder reflow.

8.3 RoHS Directive

The AMW037 module is produced according to the RoHS (Restriction of the use of certain Hazardous Substances in

electrical and electronic equipment) directive and complies with the directive.

Packaging, Handling and Storage, RoHS, Section 8 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

8.4 Tape and Reel Specifications

Figure 7 - Tape Specifications

Symbol

Specification (mm)

16.30

±0.10

23.30

±0.10

1.50

+0.10, -0.00

1.75

±0.10

20.20

±0.10

4.00

±0.10

20.0

±0.10

2.00

±0.10

0.30

±0.05

44.00

±00.30

 All dimensions are in mm unless otherwise specified

 The maximum cumulative tolerance is ±0.2mm for 10 sprocket hole pitch

 Cambers do not exceed 1.0mm in 250mm length

 All dimensions follow EIA-481-2A series definition

 Material: PS black

 One 22” Reel = 60 meters

Packaging, Handling and Storage, RoHS, Section 8 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

Figure 8 - Reel Specifications

Symbol

Specification (mm)

33.0 ± 1.0

2.5 ± 0.2

13.4 ± 0.2

2.2 ± 0.2

32.5 ± 1

Ordering Information, Section 9 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

9 Ordering Information

You can order AMW037 modules as either cut tape loaded with an unspecified ZentriOS, or as a full reel of 500 units,

pre-loaded with either a specific ZentriOS version or a version of your embedded custom application.

When you order, refer to the OPN (Orderable Part Number), as described below. For examples, see Table 6 - Ordering

Information below.

9.1 Ordering an Unspecified ZentriOS Version

OPN: AMW037

When ordering an unspecified ZentriOS version as cut tape, the OPN is simply AMW037.

When the ZentriOS version is unspecified, orders of AMW037 modules ship with whatever versions of

ZentriOS are available. The ZentriOS version is not guaranteed to be the same for all items shipped. Cut tape is suita-

ble for sampling, evaluation, and pilot builds.

Upon delivery, you can update modules individually, via OTA (Over-The-Air update), with a specific firmware version.

9.2 Ordering a Specific ZentriOS-WL Version or a Custom Firmware Version

ZentriOS version OPN: AMW037-x.y.zR

Custom firmware version OPN: AMW037-xxxxxxR

Volume orders are delivered in reels, as indicated by the R suffix. To ensure consistency, specify an OPN correspond-

ing to a specific version.

ZentriOS version: the OPN is of the form AMW037-x.y.zR, where x is the major version, y is the minor version and z

is the patch version.

Custom firmware version: the OPN is of the form AMW037-xxxxxxR, where xxxxxx is a unique ID indicating a specific

product version. Zentri ships reels with the product version specified.

A custom firmware version includes a specific version of ZentriOS, and additional configuration details.

After shipping, individual modules may be updated to later versions of this product only.

Table 6 - Ordering Information

Order Type

Delivery Format

Quantity

Example OPN

Unspecified firmware

Cut tape

Fewer than

500 units

AMW037

Specified ZentriOS version

Full reel box

500 units

AMW037-1.0.2R

Custom firmware

Full reel box

500 units

AMW37-H35GHJR

9.3 ZentriOS Version History

ZentriOS-WL firmware revision history is available online at:

https://docs.zentri.com/zentrios/editions-and-versions#zentrioswl

Revision History & Glossary, Section 10 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

10 Revision History & Glossary

10.1 Revision History

Table 14: Document Revision History

Revision

Date

Change Description

ADS-MW037-100R

Aug 20, 2016

Initial release

ADS-MW037-101R

Aug 29, 2017

Added Firmware Features, Dimensions section, new Silicon Labs ordering

information, updated European Certification

10.2 Glossary

In most cases, acronyms and abbreviations are defined on first use. A comprehensive list of acronyms and other

terms used in Zentri documents are provided on the Zentri website at https://docs.zentri.com/zentri/glossary.

References, Section 11 AMW037 Datasheet

ADS-MW037-101R • AMW037 Datasheet August 29, 2017

11 References

Throughout this data sheet, references to other docu-

ments are listed. The following documents provide addi-

tional material:

1. IEEE 802.11 Standard

Institute of Electrical and Electronics Engineers.

http://standards.ieee.org

http://www.silabs.com

Silicon Laboratories Inc.

400 West Cesar Chavez

Austin, TX 78701

USA

Smart.

Connected.

Energy-Friendly.

Products

www.silabs.com/products

Quality

www.silabs.com/quality

Support and Community

community.silabs.com

Disclaimer

Silicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or

intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical"

parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes

without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included

information. Silicon Labs shall have no liability for the consequences of use of the information supplied herein. This document does not imply or express copyright licenses granted

hereunder to design or fabricate any integrated circuits. The products are not designed or authorized to be used within any Life Support System without the specific written consent of

Silicon Labs. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant

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destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons.

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