SC14-E310-001 - Conexant Systems, Inc.

Data Sheet Conexant Doc. No. 101522D

December 20, 2001

SmartSCM

SmartSCMSmartSCM

SmartSCM

SocketModem

SocketModemSocketModem

SocketModem

V.90/K56flex



/V.34/V.32 SocketModem Family for Worldwide

Data/Fax/TAM Applications

The Conexantä SmartSCMä SocketModemä with SmartDAAä technology

supports analog data up to 56 kbps, 33.6 kbps, and 14.4 kbps, and analog

fax up to 14.4 kbps. For most existing designs, the SmartSCM

SocketModem is a drop-in replacement for the SF56D/SP, SF336D/SP, or

SF144D/SP SocketModem with the exception of some voice features. This

SocketModem (Figure 1) is also ideal for new designs due to its low profile

and use of Conexant’s SmartSCM Single Chip Modem with SmartDAAä.

The SocketModem stores over 38 country profiles in memory and more can

be added as required.

As a V.90/K56flexä data modem (SC43 series), the SmartSCM

SocketModem can receive data at speeds up to 56 kbps from a digitally

connected V.90- or K56flex-compatible central site modem. Taking

advantage of the PSTN, which is primarily digital except for some client

modem to central office local loops, V90/K56flex modems are ideal for

applications such as remote access to an Internet Service Provider (ISP),

on-line service, or corporate site. In this mode, the SocketModem can send

data at speeds up to V.34 rates.

As a V.34 data modem (SC34 series), the SmartSCM SocketModem

operates at line speeds up to 33.6 kbps.

As a V.32 modem, the SmartSCM SocketModem operates at line speeds up

to 14.4 kbps.

Error correction (V.42/MNP 2-4) and data compression (V.42 bis/MNP 5)

maximize data transfer integrity and boost average data throughput up to

230.4 kbps. Non-error-correcting mode is also supported.

As a fax modem, the SmartSCM SocketModem supports V.17 fax for class 1

or 2 send and receive rates up to 14.4 kbps.

The SmartSCM SocketModem uses a Conexant CX88168 SmartSCM, in a

128-pin TQFP, and a Conexant CX20463 SmartDAA, in a 32-pin TQFP.

Figure 1. Top View of SmartSCM SocketModem

Features

Data Modem Features

• ITU-T V.90/K56flexä, V.34, V.32bis, V.32,

V.22bis, V.22, V.23, and V.21; Bell 212A and

Bell 103

• V.42 LAPM and MNP 2-4 error correction

• V.42bis and MNP 5 data compression

Fax Modem Features

• V.17, V.29, V.27 ter and V.21 channel 2

• EIA/TIA 578 Class 1 and T.31 Class 1.0

commands

• EIA/TIA 578 Class 2 commands

Advanced Features

• Extension pickup detection

• Remote hang-up detection

• Line-in-use detection

• Digital PBX detection and protection

Telephony/TAM

• V.253 commands

• 2-bit and 4-bit Conexant ADPCM, 8-bit linear

PCM, and 4-bit IMA coding

• 8 kHz sample rate

• Concurrent DTMF, ring, and Caller ID

detection

General Features

• Small size: 64.54 x 26.54 x 11.95 mm

(L x W x H)

• Operates with over 38 country profiles stored

in memory

• Optional additional country profiles

• Operating temperature: 0° C to +70° C

• Line quality monitoring and retrain

• Line protection circuitry included

• +3.3 V operation (serial interface)

• +5 V operation (serial or parallel interface)

Compliance

• FCC Part 15B compliant

• FCC Part 68 compliant

• CE Mark and CTR21 compliant

• UL/CUL recognized component, File No.

E93908

SmartSCM SocketModem Data Sheet

2Conexant 101522D

Ordering Information

The SmartSCM SocketModem ordering information is listed in Table 1.

Table 1. SmartSCM SocketModem Ordering Information

Sales Order No. Part No. Configuration

SC56H1 SC43-E310-001 V.90/56 kbps, serial interface, +5 V operation

SC56H1-L SC43-E320-001 V.90/56 kbps, serial interface, +3.3 V operation

SC336H1 SC34-E310-001 V.34/33.6 kbps, serial interface, +5 V operation

SC336H1-L SC34-E320-001 V.34/33.6 kbps, serial interface, +3.3 V operation

SC144H1 SC14-E310-001 V.32/14.4 kbps, serial interface, +5 V operation

SC144H1-L SC14-E320-001 V.32/14.4 kbps, serial interface, +3.3 V operation

SC56H0 SC43-E010-001 V.90/56 kbps, parallel interface, +5 V operation

SC336H0 SC34-E010-001 V.34/33.6 kbps, parallel interface, +5 V operation

SC144H0 SC14-E010-001 V.32/14.4 kbps, parallel interface, +5 V operation

Reference Documents

Title Doc. No.

SmartSCM SocketModem Designer Guide 101917

AT Commands Reference Manual 100722

Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials are

provided by Conexant as a service to its customers and may be used for informational purposes only. Conexant assumes no

responsibility for errors or omissions in these materials. Conexant may make changes to specifications and product descriptions at

any time, without notice. Conexant makes no commitment to update the information and shall have no responsibility whatsoever for

conflicts or incompatibilities arising from future changes to its specifications and product descriptions.

No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as

provided in Conexant’s Terms and Conditions of Sale for such products, Conexant assumes no liability whatsoever.

THESE MATERIALS ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,

RELATING TO SALE AND/OR USE OF CONEXANT PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO

FITNESS FOR A PARTICULAR PURPOSE, CONSEQUENTIAL OR INCIDENTAL DAMAGES, MERCHANTABILITY, OR

INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. CONEXANT FURTHER

DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS

CONTAINED WITHIN THESE MATERIALS. CONEXANT SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL,

OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS, WHICH MAY

RESULT FROM THE USE OF THESE MATERIALS.

Conexant products are not intended for use in medical, lifesaving or life sustaining applications. Conexant customers using or

selling Conexant products for use in such applications do so at their own risk and agree to fully indemnify Conexant for any

damages resulting from such improper use or sale.

The following are trademarks of Conexant Systems, Inc.: Conexant™, the Conexant C symbol, “What’s Next in Communications

Technologies”™, SmartSCM™, SmartDAA™, K56flex™, and SocketModem™. Product names or services listed in this publication

are for identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their

respective owners.

For additional disclaimer information, please consult Conexant’s Legal Information posted at www.conexant.com, which is

incorporated by reference.

Reader Response: Conexant strives to produce quality documentation and welcomes your feedback. Please send comments and

suggestions to tech.pubs@conexant.com. For technical questions, contact your local Conexant sales office or field applications

engineer.

SmartSCM SocketModem Data Sheet

101522D Conexant 3

SmartSCM SocketModem Pin Connections

Serial TTL Interface Model

Pin signals for serial interface models are illustrated in Figure 2 and listed in Table 2.

Figure 2. SmartSCM SocketModem Pin Signals - Serial TTL Interface Models

~RESET

GND

DCDIND

RXIND

DTRIND

TXIND

SPKR, CALL MONITOR

GND

VCC

GND

~DTRTTL

~DCDTTL

~CTSTTL

~DSRTTL

~RITTL

~TXDTTL

~RXDTTL

~RTSTTL

DLED

SERIAL TTL

101522_002

TIP

RING

Table 2. SmartSCM SocketModem Pin Signals - Serial TTL Interface Models

Pin Function

1 Telephone Line Interface – TIP.

2 Telephone Line Interface – RING.

24 Reset, active low, 50 to 100 ms. Closure to GND for reset.

26 Ground.

29 DCD Indicator; can drive an LED anode without additional circuitry.

30 RXD Indicator; can drive an LED anode without additional circuitry.

31 DTR Indicator; can drive an LED anode without additional circuitry.

32 TXD Indicator; can drive an LED anode without additional circuitry.

33 RTS Interface, TTL levels.

34 RXD Interface, TTL levels.

35 TXD Interface, TTL levels.

36 Ring Indicator Interface, TTL levels.

37 DSR Interface, TTL levels.

38 CTS Interface, TTL levels.

39 DCD Interface, TTL levels.

40 DTR Interface, TTL levels.

41 Ground.

61 +5 VDC or +3.3 VDC Input.

63 Ground.

64 Speaker, Call Monitor.

* No pins in positions 3-23, 25, 27, 28, 42-60, and 62.

SmartSCM SocketModem Data Sheet

4Conexant 101522D

Parallel Interface Model

Pin signals for parallel interface models are illustrated in Figure 3 and listed in Table 3.

Figure 3. SmartSCM SocketModem Pin Signals – Parallel Interface Models

~RESET

HA1

GND

HD7

HD2

HINT

HA0

~HWT

SPKR, CALL MONITOR

GND

VCC

HD6

~HCS

HD3

HD1

HD0

HD5

HD4

HA2

~HRD

HOST BUS HOST BUS

101522_003

TIP

RING

Table 3. SmartSCM SocketModem Pin Signals – Parallel Interface Models

Pin Function

1 Telephone Line Interface – TIP.

2 Telephone Line Interface – RING.

24 Reset, active low, 50 to 100 ms. Closure to GND for reset.

25 Host Bus Address Line 1.

26 Ground.

27 Host Bus Data Line 7.

29 Host Bus Data Line 2.

30 Host Bus Interrupt Line, active high, Resets on Low.

31 Host Bus Address Line 0.

32 Host Bus Write; when low, allows host to write to SocketModem.

33 Host Bus Read; when low, allows host to read from SocketModem.

34 Host Bus Address Line 2.

35 Host Bus Data Line 4.

36 Host Bus Data Line 5.

37 Host Bus Data Line 0.

38 Host Bus Data Line 1

39 Host Bus Data Line 3.

40 Host Bus Chip Select, active low.

41 Host Bus Data Line 6.

61 +5 VDC Input.

63 Ground.

64 Speaker, Call Monitor.

* No pins in positions 3-23, 28, 42-60, and 62.

SmartSCM SocketModem Data Sheet

101522D Conexant 5

Physical Dimensions

The SmartSCM SocketModem dimensions are 2.541 in. (64.54 mm) [L] x 1.045 in.

(26.54 mm) [W] x 0.471 in. (11.95 mm) [H] (Figure 4). The overall height of 0.471 in.

(11.95 mm) includes the pin length of 0.310 in. (7.87 mm).

Figure 4. SmartSCM SocketModem Physical Dimensions

101522_007

Telephone Line Interface

Figure 5 illustrates the telephone line interface for the SmartSCM SocketModem.

The TIP and RING SocketModem pins connect directly to the RJ-11 jack or customer-

supplied telephone company (telco) interface.

Figure 5. SmartSCM SocketModem Telephone Line Interface

RJ-11C

SocketModem

Pin 2

(Ring)

SocketModem

Pin 1

(Tip)

Alternate

RJ-11

101522_005

SmartSCM SocketModem Data Sheet

6Conexant 101522D

Electrical and Environmental Specifications

The operating conditions are specified in Table 4.

The absolute maximum ratings are listed in Table 5.

The current and power requirements are listed in Table 6.

Table 4. Operating Conditions

Parameter Symbol Limits Units

+3.3 V Configuration

Supply voltage (Pin 61 = +3.3 V) VDD +3.13 to +3.47 VDC

Operating ambient temperature TA0 to +70 °C

+5 V Configuration

Supply voltage (Pin 61 = +5 V) VDD +4.75 to +5.25 VDC

Operating ambient temperature TA0 to +70 °C

Table 5. Absolute Maximum Ratings

Parameter Symbol Limits Units

Supply voltage (Pin 61 = +3.3 V) VDD -0.5 to +4.0 VDC

Supply voltage (Pin 61 = +5 V) VDD -0.5 to +7.0 VDC

Input voltage VIN -0.5 to (VDD +0.5) VDC

Voltage applied to outputs in

high impedance (Off) state

VHZ -0.5 to (VDD +0.5) VDC

DC input clamp current IIK ±20 mA

DC output clamp current IOK ±20 mA

Static discharge voltage (25°C) VESD ±2500 VDC

Latch-up current (25°C) ITRIG ±200 mA

Storage temperature TSTG -40 to +80 °C

Table 6. Current and Power Requirements

Mode

Typ.

Current

(mA)

Max.

Current

(mA)

Typ.

Power

(mW)

Max.

Power

(mW)

+5 V Configuration (VDD = +5 V)

Normal Mode (Serial TTL interface) 190 200 0.95 1.05

Normal Mode (Parallel interface) 180 200 0.90 1.05

+3.3 V Configuration (VDD = +3.3 V)

Normal Mode (Serial TTL interface) 170 180 0.56 0.63

Test conditions:

For Pin 61 = +5 V, VDD = +5 V for typical values; VDD = +5.25 V for maximum values.

For Pin 61 = +3.3 V, VDD = +3.3 V for typical values; VDD = +3.47 V for maximum values.

SmartSCM SocketModem Data Sheet

101522D Conexant 7

Supported Country Profiles

The SmartSCM SocketModem contains the country profiles listed in Table 7.

Table 7. Supported Country Profiles

Country Code Country Code Country Code

Australia ∅9Hungary 51 Poland 8A

Austria ∅AIndia 53 Portugal 8B

Belgium ∅FIreland 57 Singapore 9C

Brazil 16 Israel 58 South Africa 9F

Canada B5 Italy 59 Spain A∅

China 26 Japan ∅∅ Sweden* A5

Czech Republic 2E Korea 61 Switzerland A6

Denmark 31 Malaysia 6C Taiwan FE

Finland* 3C Mexico 73 Thailand A9

France 3D The Netherlands 7B Turkey AE

Germany 42 New Zealand 7E United Kingdom B4

Greece 46 Norway* 82 United States B5

Hong Kong 5∅Philippines 89 CTR21 FD

www.conexant.com

General Information:

U.S. and Canada: (800) 854-8099

International: (949) 483-6996

Headquarters – Newport Beach

4311 Jamboree Rd.

Newport Beach, CA 92660-3007