CX20463-21 datasheet, PDF - EEWORLD Datasheet

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CX20463-21: DescriptionModem, CMOS, PQFP32,; CategoryWireless rf/communication Telecom circuit; File Size823KB，48 Pages; ManufacturerSynaptics Incorporated

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CX20463-21 Overview

Modem, CMOS, PQFP32,

CX20463-21 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
package instruction	QFP, QFP32,.35SQ,32
Reach Compliance Code	compliant
JESD-30 code	S-PQFP-G32
JESD-609 code	e0
Number of terminals	32
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	QFP
Encapsulate equivalent code	QFP32,.35SQ,32
Package shape	SQUARE
Package form	FLATPACK
power supply	3.3 V
Certification status	Not Qualified
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Telecom integrated circuit types	MODEM
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
Base Number Matches	1

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SmartV.XX Modem

with 28-Pin CTLGA

V.90+/V.34/V.32bis CX81801

Smart Modem with CX20493

SmartDAA

Data Sheet

Doc. No. 102025G

February 24, 2003

SmartV.XX Modem with 28-Pin CTLGA Data Sheet

Revision Record

Revision

Date

2/24/2003

12/10/2002

12/6/2002

11/20/2002

8/17/2002

8/14/2002

5/17/2002

Comments

Rev. G release.

Rev. F release.

Rev. E release.

Rev. D release.

Rev. C release.

Rev. B release.

Initial release.

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”™ and Modem-on-Hold. SmartDAA is a registered trademark of Conexant Systems, Inc. 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.

Conexant

102025G

SmartV.XX Modem with 28-Pin CTLGA Data Sheet

Contents

1. Introduction..........................................................................................................................................1-1

1.1

1.2

Overview ......................................................................................................................................................................... 1-1

Features .......................................................................................................................................................................... 1-4

1.2.1

General Modem Features................................................................................................................................ 1-4

1.2.2

SmartDAA Features ........................................................................................................................................ 1-5

1.2.3

Applications.................................................................................................................................................... 1-5

Technical Overview......................................................................................................................................................... 1-6

1.3.1

General Description ........................................................................................................................................ 1-6

1.3.2

MCU Firmware................................................................................................................................................ 1-6

1.3.3

Operating Modes ............................................................................................................................................ 1-6

1.3.3.1

1.3.3.2

1.3.3.3

1.3.3.4

Data/Fax Modes.......................................................................................................................... 1-6

V.44 Data Compression.............................................................................................................. 1-7

Synchronous Access Mode (SAM) - Video Conferencing .......................................................... 1-7

TAM Mode.................................................................................................................................. 1-7

1.3

1.4

1.5

2.1

2.2

1.3.3.5

Worldwide Operation.................................................................................................................. 1-8

1.3.4

Reference Designs.......................................................................................................................................... 1-9

Hardware Description ..................................................................................................................................................... 1-9

1.4.1

CX81801 Smart Modem................................................................................................................................. 1-9

1.4.2

Digital Isolation Barrier................................................................................................................................... 1-9

1.4.3

CX20493 SmartDAA Line Side Device............................................................................................................ 1-9

Commands ................................................................................................................................................................... 1-10

Serial DTE Interface Operation........................................................................................................................................ 2-1

2.1.1

Automatic Speed/Format Sensing .................................................................................................................. 2-1

Establishing Data Modem Connections .......................................................................................................................... 2-2

2.2.1

Telephone Number Directory.......................................................................................................................... 2-2

2.2.2

Dialing ............................................................................................................................................................ 2-2

2.2.3

Modem Handshaking Protocol ....................................................................................................................... 2-2

2.2.4

Call Progress Tone Detection ......................................................................................................................... 2-2

2.2.5

Answer Tone Detection................................................................................................................................... 2-2

2.2.6

Ring Detection................................................................................................................................................ 2-2

2.2.7

Billing Protection ............................................................................................................................................ 2-2

2.2.8

Connection Speeds......................................................................................................................................... 2-3

2.2.9

Automode ....................................................................................................................................................... 2-3

2. Technical Specifications .......................................................................................................................2-1

102025G

Conexant

iii

SmartV.XX Modem with 28-Pin CTLGA Data Sheet

2.3

Data Mode ...................................................................................................................................................................... 2-3

2.3.1

Speed Buffering (Normal Mode) .................................................................................................................... 2-3

2.3.2

Flow Control ................................................................................................................................................... 2-4

2.3.3

Escape Sequence Detection............................................................................................................................ 2-4

2.3.4

BREAK Detection ............................................................................................................................................ 2-4

2.3.5

Telephone Line Monitoring............................................................................................................................. 2-4

2.3.6

Fall Forward/Fallback (V.90/V.34/V.32 bis/V.32) ............................................................................................ 2-4

2.3.7

Retrain ............................................................................................................................................................ 2-4

2.3.8

Programmable Inactivity Timer ...................................................................................................................... 2-4

2.3.9

DTE Signal Monitoring (Serial DTE Interface Only) ........................................................................................ 2-5

Modem-on-Hold ............................................................................................................................................................. 2-5

Error Correction and Data Compression......................................................................................................................... 2-5

2.5.1

V.42 Error Correction ..................................................................................................................................... 2-5

2.5.2

MNP 2-4 Error Correction .............................................................................................................................. 2-5

2.5.3

V.44 Data Compression.................................................................................................................................. 2-5

2.5.4

V.42 bis Data Compression ............................................................................................................................ 2-6

2.5.5

MNP 5 Data Compression .............................................................................................................................. 2-6

MNP 10 Data Throughput Enhancement ........................................................................................................................ 2-6

Telephony Extensions..................................................................................................................................................... 2-6

2.7.1

Line In Use Detection ..................................................................................................................................... 2-6

2.7.2

Extension Pickup Detection ............................................................................................................................ 2-7

2.7.3

Remote Hangup Detection.............................................................................................................................. 2-7

Fax Class 1 and Fax Class 1.0 Operation ........................................................................................................................ 2-7

Voice/Audio Mode .......................................................................................................................................................... 2-7

2.9.1

Online Voice Command Mode ........................................................................................................................ 2-7

2.9.2

Voice Receive Mode ....................................................................................................................................... 2-7

2.9.3

Voice Transmit Mode ..................................................................................................................................... 2-8

2.9.4

Full-Duplex Receive and Transmit Mode ........................................................................................................ 2-8

2.9.5

Audio Mode .................................................................................................................................................... 2-8

2.9.6

Tone Detectors ............................................................................................................................................... 2-8

2.9.7

Speakerphone Modes..................................................................................................................................... 2-8

Caller ID .......................................................................................................................................................................... 2-8

Worldwide Country Support ........................................................................................................................................... 2-9

Diagnostics ................................................................................................................................................................... 2-10

2.12.1

Commanded Tests........................................................................................................................................ 2-10

2.12.2

Power On Reset Tests .................................................................................................................................. 2-10

Low Power Sleep Mode ................................................................................................................................................ 2-10

CX81801 Smart Modem Hardware Pins and Signals ..................................................................................................... 3-1

3.1.1

CX81801 Smart Modem Signal Summary ..................................................................................................... 3-1

3.1.1.1

3.1.1.2

3.1.2

LSD Interface (Through DIB)...................................................................................................... 3-1

Call Progress Speaker Interface ................................................................................................. 3-1

2.4

2.5

2.6

2.7

2.8

2.9

2.10

2.11

2.12

2.13

3.1

3. Hardware Interface ...............................................................................................................................3-1

3.1.1.3

Serial DTE Interface and Indicator Outputs ................................................................................ 3-1

CX81801 Smart Modem Pin Assignments and Signal Definitions ................................................................. 3-2

Conexant

102025G

SmartV.XX Modem with 28-Pin CTLGA Data Sheet

3.2

CX20493 LSD Hardware Pins and Signals ..................................................................................................................... 3-7

3.2.1

CX20493 LSD Signal Summary...................................................................................................................... 3-7

3.2.1.1

3.2.1.2

3.2.1.3

3.2.1.4

Smart Modem Interface (Through DIB) ..................................................................................... 3-7

Telephone Line Interface ............................................................................................................ 3-7

Voltage References..................................................................................................................... 3-7

General Purpose Input/Output.................................................................................................... 3-8

3.3

3.2.1.5

No Connects ............................................................................................................................... 3-8

3.2.2

CX20493 LSD Pin Assignments and Signal Definitions ................................................................................. 3-8

Electrical and Environmental Specifications ................................................................................................................. 3-13

3.3.1

Operating Conditions, Absolute Maximum Ratings, and Power Requirements ........................................... 3-13

3.3.2

Interface and Timing Waveforms ................................................................................................................. 3-15

3.3.2.1

Serial DTE Interface.................................................................................................................. 3-15

Crystal Specifications ................................................................................................................................................... 3-16

3.4

4. Package Dimensions ............................................................................................................................4-1

102025G

Conexant

CX20463-21 Related Products

	CX20463-21	CX20463-11
Description	Modem, CMOS, PQFP32,	Modem-Data/Fax/Voice, 56kbps Data, 14.4kbps Fax, PQFP32, 1.60 MM HEIGHT, TQFP-32
Is it Rohs certified?	incompatible	incompatible
package instruction	QFP, QFP32,.35SQ,32	LQFP,
Reach Compliance Code	compliant	compliant
JESD-30 code	S-PQFP-G32	S-PQFP-G32
JESD-609 code	e0	e0
Number of terminals	32	32
Maximum operating temperature	70 °C	70 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	QFP	LQFP
Package shape	SQUARE	SQUARE
Package form	FLATPACK	FLATPACK, LOW PROFILE
Nominal supply voltage	3.3 V	3.3 V
surface mount	YES	YES
Telecom integrated circuit types	MODEM	MODEM-DATA/FAX/VOICE
Temperature level	COMMERCIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	GULL WING
Terminal pitch	0.8 mm	0.8 mm
Terminal location	QUAD	QUAD
Base Number Matches	1	1

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