XR32220EBER-L - MaxLinear, Inc.

2-Driver/2-Receiver Intelligent RS-232 Transceiver

with 1.65V to 5.5V Interface

XR32220

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FEATURES

 Meets true EIA/TIA-232-F Standards from

a +3.0V to 5.5V power supply

 Interoperable with EIA/TIA-232 and

adheres to EIA/TIA-562 down to a +2.7V

power source

 1.65V to 5.5V Logic Interface VL pin

 AUTO ON-LINE circuitry automatically

wakes up from a 1µA shutdown

 Regulated Charge Pump yields stable RS-

232 Outputs regardless of VCC variations

 Enhanced ESD Specifications

±15kV Human Body Model

±15kV IEC61000-4-2 Air Discharge

±8kV IEC61000-4-2 Contact

Discharge

 250Kbps min transmission rate

(speed grade B)

 1000Kbps min transmission

(speed grade U)

 -40°C to 125°C ambient operating

temperature

 Lead-free (RoHS 6) package

APPLICATIONS

 Industrial and Single Board Computers

 Industrial and Process Control Equipment

 Point-Of-Sales Equipment

 Building Security and Automation

Description

The XR32220 product is a 2 driver/ 2 receiver RS-232 transceiver

featuring a variable low voltage logic interface, down to 1.65V.

This product is intended for portable or hand-held applications such

as notebook and palmtop computers. The XR32220EBER device

feature slew-rate limited outputs for reduced crosstalk and EMI.

The XR32220EUER device is optimized for high speed with data

rates up to 1Mbps, easily meeting the demands of high speed RS-232

applications.

The XR32220 uses an internal high-efficiency charge-pump power

supply that requires only four 0.1μF capacitors in 3.3V operation. This

charge pump combined with MaxLinear’s driver architecture allow

the XR32220 to deliver compliant RS-232 performance from a single

power supply ranging from +3.0V to +5.5V.

The AUTO ON-LINE® feature allows the device to automatically

“wake-up” during a shutdown state when an RS-232 cable is

connected and a connected peripheral is turned on. Otherwise,

the device automatically shuts itself down drawing less than 1μA.

Typical Application

T1OUT

T2OUTT2IN

T1IN

R1IN

R2IN

R1OUT

R2OUT

Shutdown

OnLine

Status

Charge

Pump

C1+

C1-

C2+

C2-

V+

V-

RS-232

Outputs

RS-232

Inputs

TTL/CMOS

Inputs

TTL/CMOS

Outputs

Auto On-line /

Control

5KΩ

0.1µF

VCC

To µ-P Supervisor

Circuit

VCC

GND

0.1µF

18 19

Figure 1. Typical Application

7 8 9 10 11

2021222324

R1IN

R2IN

T1OUT

T2OUT

T2IN

T1IN

R2OUT

R1OUT

Status

Shutdown

Online

C1-

GND

VCC

V+

C1+

C2+

C2-

V-

XR32220

24 pin QFN

(4x4mm)

Figure 2. Package Pinout

XR32220

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Absolute Maximum Ratings

Stresses beyond those listed under Absolute Maximum

Ratings may cause permanent damage to the device.

Exposure to any Maximum Rating condition for extended

periods may affect device reliability and lifetime.

Supply Voltage (VCC) ................................... -0.3V to +6.0V

Logic Interface Voltage (VL) ..................................VL ≤ VCC

V+ ................................................................. -0.3V to +7.0V

V- .................................................................. +0.3V to -7.0V

V+ + |V-| ......................................................................±13V

ICC (DC VCC or GND current) ................................±100mA

Maximum Junction Temperature ............................... 150°C

Input Voltages

TxIN, ONLINE, Shutdown ............................. -0.3V to +6.0V

RxIN .............................................................................±15V

Output Voltage

TxOUT ...................................................................... ±13.2V

RxOUT, Status ............................................. -0.3V to +6.0V

Short-Circuit Duration

TxOUT ............................................................... Continuous

Storage Temperature ................................ -65°C to +150°C

ESD Rating RS-232 Bus pins

HBM - Human Body Model ........................................ ±15kV

IEC614000-4-2 Air Discharge .................................... ±15kV

IEC614000-4-2 Contact Discharge .............................. ±8kV

Operating Conditions

Operating Temperature Range .................. -40°C to +125°C

VCC Supply Range ...........................................3.0V to 5.5V

VL I/O Supply Range (VL ≤ VCC) ....................1.65V to 5.5V

Thermal Information (24 Ld QFN (4x4mm))

θJA ......................................................................39.2(°C/W)

θJC ......................................................................15.3(°C/W)

XR32220

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Electrical Characteristics

Unless otherwise noted: TA = -40°C to +125°C, VCC = 3.3V ± 10% or 5.0V ± 10%, VL = VCC. Limits applying over the full

operating temperature range are denoted by a •.

Symbol Parameter Conditions • Min Typ Max Units

DC CHARACTERISTICS

ICC1 Supply Current, Auto On-Line enabled

All RxIN open, Online = GND, Shutdown

= VL, VCC = VL = 3.3V, TxIN = VL or

GND

• 1.0 10 µA

ICC2 Supply Current, Shutdown Shutdown = GND, VCC = VL = 3.3V,

TxIN = VL or GND • 1.0 10 µA

ICC3 Supply Current, Auto On-Line disabled Online = Shutdown = VL, no load, VCC =

VL = 3.3V, TxIN = VL or GND • 0.3 1.0 mA

LOGIC INPUTS AND OUTPUTS

VIL Input Low Voltage TxIN, Online, Shutdown; 1.65V ≤ VL ≤

5.5V & VL ≤ VCC

• 1/3 * VLV

VIH Input High Voltage • 2/3 * VLV

IIL Input Leakage Current TxIN, Online, Shutdown; TAMB = 25°C,

VIN = 0V to VL±0.01 ±1.0 µA

IOL Output Leakage Current Status, RxOUT (Receivers disabled);

VOUT = 0V to VL• ±0.05 ±10 µA

VOL Output Low Voltage Status, RxOUT; IOUT = 1.5mA • 0.4 V

VOH Output High Voltage Status, RxOUT; IOUT = -1.5mA • VL - 0.6 V

DRIVER OUTPUTS

VSWING Output Voltage Swing All drivers outputs loaded with 3KΩ to

GND • ±5.0 ±5.4 V

OROutput Resistance VCC = V+ = V- = 0V, VOUT = ±2V • 300 Ω

IOSC Output Short-Circuit Current VOUT = 0V • ±35 ±60 mA

IOL Output Leakage Current VCC = 0V or 3.0V to 5.5V, VOUT = ±12V • ±25 µA

RECEIVER INPUTS

IVR Input Voltage Range • -15 +15 V

VIL Input Low Voltage

VCC = 3.3V • 0.6 1.2 V

VCC = 5.0V • 0.8 1.5 V

VIH Input High Voltage

VCC = 3.3V • 1.5 2.4 V

VCC = 5.0V • 1.8 2.4 V

RXHYS Receiver Input Hysteresis 0.3 V

RXRReceiver Input Resistance • 3 5 7 KΩ

XR32220

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Electrical Characteristics (Continued)

Unless otherwise noted: TA = -40°C to +125°C, VCC = 3.3V ± 10% or 5.0V ± 10%, VL = VCC. Limits applying over the full

operating temperature range are denoted by a •.

Symbol Parameter Conditions • Min Typ Max Units

AUTO ON-LINE CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = VL, VL = VCC)

RXSTSH Receiver Threshold to STATUS high level • -2.7 +2.7 V

RXSTSL Receiver Threshold to STATUS low level • -0.3 +0.3 V

tSTSH Receiver Threshold to STATUS high Figure 11 0.2 µs

tSTSL Receiver Threshold to STATUS low Figure 11 30 µs

tONLINE Receiver Thresholds to Drivers Enabled

Figure 11, (charge pump fully

discharged when receiver threshold

crossed)

30 µs

tOFFLINE Receiver Thresholds to Drivers Disabled Figure 11 35 µs

TIMING CHARACTERISTICS

fMAX

Maximum Output Frequency (Speed U) RL = 3KΩ, CL = 250pF, 1 driver active • 1000 Kbps

Maximum Output Frequency (Speed B) RL = 3KΩ, CL = 1000pF, 1 driver active • 250 Kbps

tPHL Receiver Propagation Delay (high to low) Receiver input (<10ns rise/fall) to

Receiver output, CL = 150pF 0.15 µs

tPLH Receiver Propagation Delay (low to high) Receiver input (<10ns rise/fall) to

Receiver output, CL = 150pF 0.15 µs

tRXSKEW Receiver Skew |tPHL - tPLH| 50 ns

tRXOE Receiver Output Enable Time Normal operation 200 ns

tRXOD Receiver Output Disable Time Normal operation 200 ns

tTXSKEW

Driver Skew (Speed U) |tPHL - tPLH| (Driver propagation delays) • 50 100 ns

Driver Skew (Speed B) |tPHL - tPLH| (Driver propagation delays) • 100 500 ns

TXSLEW

Transition-Region Slew Rate (Speed U)

VCC = 3.3V, RL = 3KΩ to 7KΩ, CL =

150pF to 250pF, Measured from -3.0V

to +3.0V or +3.0V to -3.0V

90 V/µs

Transition-Region Slew Rate (Speed B)

VCC = 3.3V, RL = 3KΩ to 7KΩ, CL =

150pF to 1000pF, Measured from -3.0V

to +3.0V or +3.0V to -3.0V

• 6 30 V/µs

XR32220

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Pin Configuration

Pin Functions

Pin Number Pin Name Type Description

1, 2, 7, 8 NC - No Connect (not connect to the die). Can be left floating or tied to GND or VCC.

3, 4 R1IN, R2IN Inputs

(5KΩ pull-down) ±15KV ESD Protected, RS-232 Receiver Inputs.

5, 6 T1OUT, T2OUT Output ±15KV ESD Protected, RS-232 Driver Output.

9, 10 T2IN, T1IN Input TTL/CMOS Driver Input.

11, 12 R2OUT, R1OUT Output TTL/CMOS Receiver Output.

13 Status Output TTL/CMOS level output indicating if no valid RS-232 levels are present at the R1IN or R2IN

input pins.

14 Shutdown Input TTL/CMOS level input, when driven low puts the XR32220 into shutdown mode (tri-stating

driver outputs and disabling the charge-pump); normal operation when driven high.

15 Online Input TTL/CMOS level input. A low input enables Auto On-Line mode, a high input disables Auto

On-Line Mode.

16, 21 C1-, C1+ Analog Negative and positive terminals of voltage doubler charge pump capacitor.

17 GND Supply Ground.

18 VL Supply I/O Power Supply.

19 VCC Supply Power Supply.

20 V+ Analog Regulated positive (+5.5V) charge pump rail.

22, 23 C2+, C2- Analog Positive and negative terminals of the inverting charge pump capacitor.

24 V- Analog Regulated positive (-5.5V) charge pump rail.

- Paddle Supply Ground. The exposed paddle on the bottom of package is connected to device ground.

The paddle should be connected to ground on pcb.

7 8 9 10 11

2021222324

R1IN

R2IN

T1OUT

T2OUT

T2IN

T1IN

R2OUT

R1OUT

Status

Shutdown

Online

C1-

GND

VCC

V+

C1+

C2+

C2-

V-

XR32220

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Typical Performance Characteristics

0 1000 2000 3000 4000 5000

Supply Current (mA)

Load Capacitance (pF)

1Mbps

250Kbps

120Kbps

20Kbps

T1 Driver at full Data Rate

T2 Driver at 15.5Kbps

all Drivers loaded with 3KΩ// C

Load

Figure 6. Supply Current vs Load Capacitance

100

150

200

0 500 1000 1500 2000

Skew (ns)

Load Capacitance (pF)

T1 at 1Mbps

T2 at 31.2Kbps

All TX loaded with 3KΩ// C

Load

Figure 3. Transmitter Skew vs Load Capacitance

2.5 3 3.5 4 4.5 5

Supply Current (mA)

Supply Voltage (V)

1Mbps

500Kbps

250Kbps

T1 at Full Data Rate

T2 at 15.5Kbps

All drivers loaded with 3KΩ// 1000pF

Figure 7. Supply Current vs Supply Voltage

800kHz

100

0.1 1.0

IOUT (A)

Efﬁciency (%)

3.3V DCM

2.5V DCM

1.8V DCM

1.5V DCM

1.2V DCM

1.0V DCM

3.3V CCM

2.5V CCM

1.8V CCM

1.5V CCM

1.2V CCM

1.0V CCM

-6

-4

-2

2.5 3 3.5 4 4.5 5

Transmier Output Voltage (V)

Supply Voltage (V)

1 Driver at 1Mbps

Other Driver at 62.5Kbps

All Drivers loaded with 3KΩ// 250pF

Figure 4. Transmitter Output Voltage vs Supply Voltage

-6

-4

-2

0 1000 2000 3000 4000 5000

Transmier Output Voltage (V)

Load Capacitance (pF)

TxOUT+

TxOUT-

XR32220EB, Supply = 3.3V,

T1 Driver at 250Kbps

T2 Driver at 15.5Kbps

All Drivers loads 3KΩ// C

Load

Figure 8. Transmitter Output Voltage vs Load Capacitance

-6

-4

-2

0 500 1000 1500 2000

Transmier Output Voltage (V)

Load Capacitance (pF)

XR32220EU, Supply = 3.3V,

T1 at Full Data Rate (1Mbps)

T2 Driver at 1/16th data rate

All Drivers loads 3KΩ// C

Load

Figure 5. Transmitter Output Voltage vs Load Capacitance

XR32220

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Functional Block Diagram

Figure 9. Functional Block Diagram

T1OUT

T2OUTT2IN

T1IN

R1IN

R2IN

R1OUT

R2OUT

Shutdown

OnLine

Status

Charge

Pump

C1+

C1-

C2+

C2-

V+

V-

RS-232

Outputs

RS-232

Inputs

TTL/CMOS

Inputs

TTL/CMOS

Outputs

Auto On-line /

Control

5KΩ

XR32220

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Applications Information

General Description

The XR32220 transceiver meets the EIA/TIA-232 and

ITU-T V.28/V.24 communication protocols and can be

implemented in battery-powered, portable, or hand-

held applications such as notebook or laptop computers.

The XR32220 device features MaxLinear’s proprietary and

patented (U.S. 5,306,954) on-board charge pump circuitry

that generates ±5.5V RS-232 voltage levels from a single

+3.0V to +5.5V power supply. The XR32220EUER devices

can operate at a data rate of 1000Kbps fully loaded.

The XR32220 is a 2-driver/2-receiver device, ideal for

portable or hand-held applications.

The XR32220 is an ideal choice for power sensitive

designs. The XR32220 devices feature AUTO ON-LINE®

circuitry which reduces the power supply drain to a 1µA

supply current.

In many portable or hand-held applications, an RS-232

cable can be disconnected or a connected peripheral can

be turned off. Under these conditions, the internal charge

pump and the drivers will be shut down. Otherwise, the

system automatically comes online. This feature allows

design engineers to address power saving concerns without

major design changes.

Theory of Operation

The XR32220 series is made up of four basic circuit blocks:

1. Drivers

2. Receivers

3. The MaxLinear proprietary charge pump, and

4. AUTO ON-LINE® circuitry.

Drivers

The drivers are inverting level transmitters that convert

TTL or CMOS logic levels to 5.0V EIA/TIA-232 levels

with an inverted sense relative to the input logic levels.

Typically, the RS-232 output voltage swing is ±5.5V with

no load and ±5V minimum fully loaded. The driver outputs

are protected against infinite short-circuits to ground

without degradation in reliability. These drivers comply

with the EIA-TIA-232-F and all previous RS-232 versions.

Unused drivers inputs should be connected to GND or VL.

The drivers have a minimum data rate of 250kbps

(XR32220EB) or 1000kbps (XR32220EU) fully loaded.

Receivers

The receivers convert +5.0V EIA/TIA-232 levels to TTL or

CMOS logic output levels. Receivers are High-Z when the

AUTO ON-LINE® circuitry is enabled and activated or when

in shutdown. The truth table logic of the XR32220 driver and

receiver outputs can be found in Table 2 on page 11.

Since receiver input is usually from a transmission line

where long cable lengths and system interference can

degrade the signal, the inputs have a typical hysteresis

margin of 300mV. This ensures that the receiver is virtually

immune to noisy transmission lines. Should an input be left

unconnected, an internal 5KΩ pull-down resistor to ground

will commit the output of the receiver to a HIGH state.

Charge Pump

The charge pump is a MaxLinear–patented design (U.S.

5,306,954) and uses a unique approach compared to older

less–efficient designs. The charge pump still requires four

external capacitors, but uses a four–phase voltage shifting

technique to attain symmetrical ±5.5V power supplies.

The internal power supply consists of a regulated dual charge

pump that provides output voltages of ±5.5V regardless

of the input voltage (VCC) over the +3.0V to +5.5V range.

This is important to maintain compliant RS-232 levels

regardless of power supply fluctuations.

The charge pump operates in a discontinuous mode using

an internal oscillator. If the output voltages are less than

a magnitude of ±5.5V, the charge pump is enabled. If the

output voltages exceed a magnitude of 5.5V, the charge

pump is disabled. This oscillator controls the four phases

of the voltage shifting. A description of each phase follows.

Phase 1

V- charge storage — During this phase of the clock cycle,

the positive side of capacitors C1 and C2 are initially charged

to VCC. C1+ is then switched to GND and the charge in C1–

is transferred to C2–. Since C2+ is connected to VCC, the

voltage potential across capacitor C2 is now 2 times VCC.

C1 C2

Storage Capacitor

-V

Figure 10. Charge Pump - Phase 1

XR32220

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Applications Information (Continued)

Phase 2

V- transfer — Phase two of the clock connects the negative

terminal of C2 to the VSS storage capacitor and the positive

terminal of C2 to GND. This transfers a negative generated

voltage to C3. This generated voltage is regulated to a

minimum voltage of -5.5V. Simultaneous with the transfer

of the voltage to C3, the positive side of capacitor C1 is

switched to VCC and the negative side is connected to GND.

C1 C2

-5.5V

Storage Capacitor

Figure 11. Charge Pump - Phase 2

Phase 3

V+ charge storage — The third phase of the clock is identical

to the first phase — the charge transferred in C1 produces

–VCC in the negative terminal of C1, which is applied to

the negative side of capacitor C2. Since C2+ is at VCC,

the voltage potential across C2 is 2 times VCC.

C1 C2

Storage Capacitor

-V

Figure 12. Charge Pump - Phase 3

Phase 4

V+ transfer — The fourth phase of the clock connects

the negative terminal of C2 to GND, and transfers this

positive generated voltage across C2 to C4, the V+ storage

capacitor. This voltage is regulated to +5.5V. At this voltage,

the internal oscillator is disabled. Simultaneous with the

transfer of the voltage to C4, the positive side of capacitor

C1 is switched to VCC and the negative side is connected

to GND, allowing the charge pump cycle to begin again.

The charge pump cycle will continue as long as the

operational conditions for the internal oscillator are present.

C1 C2

+5.5V

Storage Capacitor

Figure 13. Charge Pump - Phase 4

Since both V+ and V– are separately generated from VCC,

in a no–load condition V+ and V– will be symmetrical.

Older charge pump approaches that generate V– from V+

will show a decrease in the magnitude of V– compared to

V+ due to the inherent inefficiencies in the design. The clock

rate for the charge pump typically operates at greater than

250kHz. The external capacitors can be as low as 0.1µF

with a 16V breakdown voltage rating.

The MaxLinear-patented charge pumps are designed to

operate reliably with a range of low cost capacitors. Either

polarized or non polarized capacitors may be used. If

polarized capacitors are used they should be oriented as

shown in the Typical Applications Circuit. The V+ capacitor

may be connected to either ground or VCC (polarity

reversed.)

The charge pump operates with 0.1µF capacitors for

3.3V operation. For other supply voltages, see the table

for required capacitor values. Do not use values smaller

than those listed. Increasing the capacitor values (e.g., by

doubling in value) reduces ripple on the transmitter outputs

and may slightly reduce power consumption. C2, C3, and

C4 can be increased without changing C1’s value.

XR32220

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Applications Information (Continued)

Table 1. Minimum Recommended Charge

Pump Capacitor Values

Supply Voltage

VCC

Charge Pump Capacitor

Value for XR32220

3.0V to 3.6V C1 - C4 = 0.1µF

4.5V to 5.5V C1 = 0.047µF, C2 - C4 = 0.33µF

3.0V to 5.5V C1 - C4 = 0.22µF

For best charge pump efficiency locate the charge pump

and bypass capacitors as close as possible to the IC.

Surface mount capacitors are best for this purpose.

Using capacitors with lower equivalent series resistance

(ESR) and self-inductance, along with minimizing parasitic

PCB trace inductance will optimize charge pump operation.

Designers are also advised to consider that capacitor values

may shift over time and operating temperature.

AUTO ON-LINE® Circuitry

The XR32220 devices have a patent pending AUTO

ON-LINE® circuitry on board that saves power in applications

such as laptop computers, palmtop (PDA) computers and

other portable systems.

The XR32220 devices incorporate an AUTO ON-LINE®

circuit that automatically enables itself when the external

transmitters are enabled and the cable is connected.

Conversely, the AUTO ON-LINE® circuit also disables most

of the internal circuitry when the device is not being used

and goes into a standby mode where the device typically

draws 1µA. This function is externally controlled by the

ONLINE pin. When this pin is tied to a logic LOW, the

AUTO ON-LINE® function is active. Once active, the device

is enabled until there is no activity on the receiver inputs.

The receiver input typically sees at least +3V, which are

generated from the transmitters at the other end of the

cable with a +5V minimum.

When the external transmitters are disabled or the cable

is disconnected, the receiver inputs will be pulled down by

their internal 5kΩ resistors to ground. When this occurs over

a period of time, the internal transmitters will be disabled and

the device goes into a shutdown or standby mode. When

ONLINE is HIGH, the AUTO ON-LINE® mode is disabled.

Invalid

Region

RS232

Receiver

Input

Voltage

STSL

STSH

OFFLINE

ONLINE

RS232

Driver

Output

Voltage

STATUS

+5V

-5V

Charge

Pump

V+

V-

Figure 14. Auto On-Line® Timing

The STATUS pin goes to a logic LOW when the cable is

disconnected or the external transmitters are disabled.

When the XR32220 drivers and internal charge pump are

disabled, the supply current is reduced to 1µA. This can

commonly occur in hand-held or portable applications where

the RS-232 cable is disconnected or the RS-232 drivers of

the connected peripheral are turned off.

The AUTO ON-LINE® mode can be disabled by the

SHUTDOWN pin. If this pin is a logic LOW, the AUTO

ON-LINE® function will not operate regardless of the

logic state of the ONLINE pin. The truth table logic of the

XR32220 driver and receiver outputs can be found in

Table 3 on page 11.

The STATUS pin outputs a logic LOW signal if the no valid

RS-232 level is detected at either of the receiver inputs.

This pin goes to a logic HIGH when the external transmitters

are enabled and the cable is connected providing valid

RS-232 voltage levels to the receiver input pins R1IN and

R2IN.

When the XR32220 is shut down, the charge pumps

are turned off. V+ charge pump output decays to VCC,

the V- output decays to GND. The decay time will depend

on the size of capacitors used for the charge pump. Once in

shutdown, the time required to exit the shut down state and

have valid V+ and V- levels is typically 30µs.

For easy programming, the STATUS can be used to

indicate DSR or a Ring Indicator signal. Tying ONLINE and

SHUTDOWN together will bypass the AUTO ON-LINE®

circuitry so this connection acts like a shutdown input pin.

XR32220

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Applications Information (Continued)

Table 2. XR32220 Operation Truth Table

Valid RS-232

Level at

Receiver Input

Shutdown OnLine Driver

Outputs

Receiver

Outputs Status Mode of Operation

Yes L x High-Z High-Z H Manually forced shutdown

No L x High-Z High-Z L Manually forced shutdown

Yes H L Active Active H Normal Operation (Auto On-Line® enabled)

No H L High-Z Active L Standby Operation due to Auto On-Line® circuitry

Yes H H Active Active H Normal Operation

No H H Active Active L Normal Operation

Table 3. XR32220 Driver and Receiver Truth Table

Shutdown RxIN RxOUT TxIN TxOUT

L x High-Z x High-Z

H L H L H

H H L H L

XR32220

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Package Description

1. All dimensions are in Millimeters

2. Dimensions and tolerance per Jedec MO-220

Drawing No. : POD - 00000121

Revision: A.1

BOTTOM VIEW

TOP VIEW

SIDE VIEW

TYPICAL RECOMMENDED LAND PATTERN

TERMINAL DETAILS

Min. Nom Max

A 0.80 0.85 0.90

A1 0 0.02 0.05

D2 2.65 2.70 2.75

E2 2.65 2.70 2.75

b 0.18 0.25 0.30

k 0.2 - -

L 0.35 0.40 0.45

Symbol

0.203 REF.

4.00 BSC

0.50 BSC

Dimensions in Millimeters

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XR32220_DS_100517

XR32220

13/13

REV1D

Corporate Headquarters:

5966 La Place Court

Suite 100

Carlsbad, CA 92008

Tel.:+1 (760) 692-0711

Fax: +1 (760) 444-8598

www.maxlinear.com

High Performance Analog:

48720 Kato Road

Fremont, CA 94538

Tel.: +1 (510) 668-7000

Fax: +1 (510) 668-7001

Email: serialtechsupport@exar.com

www.exar.com

Ordering Information(1)

Part Number Operating Temperature Range Lead-Free Package Packaging Method

XR32220EBER-L

-40°C to 125°C Yes(2) 24-pin QFN

Tray

XR32220EBER-L/TR Tape and Reel

XR32220EUER-L Tray

XR32220EUER-L/TR(3) Tape and Reel

XR32220EBEVB XR32220EB Evaluation Board

XR32220EUEVB XR32220EU Evaluation Board

NOTE:

1. Refer to www.exar.com/XR32220 for most up-to-date Ordering Information.

2. Visit www.exar.com for additional information on Environmental Rating.

3. NRND - Not recommended for new designs.

Revision History

Revision Date Description

1A Sept 2014 Initial release of datasheet.

1B Sept 2016 Update max operating temperature range from 85°C to 125°C. Update Figure 4 and Ordering

Information. Update to new datasheet format.

1C Aug 2017 Clarify junction temperature in Absolute Maximum Ratings to maximum of 150°C. Update to

MaxLinear logo. Update format.

1D Oct 2017 Add Evaluation Boards to Ordering Information.