CX81801-33 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Wireless rf/communication> Telecom circuit> CX81801-33

CX81801-33: DescriptionModem-Data/Fax/Voice, 56kbps Data, 14.4kbps Fax, CMOS, PQFP128, 1.60 MM HEIGHT, TQFP-128; CategoryWireless rf/communication Telecom circuit; File Size1MB，100 Pages; ManufacturerCONEXANT; Websitehttp://www.conexant.com/

Download Datasheet Parametric Compare View All

CX81801-33 Overview

Modem-Data/Fax/Voice, 56kbps Data, 14.4kbps Fax, CMOS, PQFP128, 1.60 MM HEIGHT, TQFP-128

CX81801-33 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Parts packaging code	QFP
package instruction	LFQFP, QFP128,.63X.87,20
Contacts	128
Reach Compliance Code	compliant
data rate	56 Mbps
Fax rate	14.4 kbps
JESD-30 code	R-PQFP-G128
JESD-609 code	e0
length	20 mm
Number of functions	1
Number of terminals	128
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	LFQFP
Encapsulate equivalent code	QFP128,.63X.87,20
Package shape	RECTANGULAR
Package form	FLATPACK, LOW PROFILE, FINE PITCH
power supply	3.3 V
Certification status	Not Qualified
Maximum seat height	1.6 mm
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Telecom integrated circuit types	MODEM-DATA/FAX/VOICE
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.5 mm
Terminal location	QUAD
width	14 mm
Base Number Matches	1

Preview

Download Datasheet

View All

SmartV.XX Modem

with 128-Pin TQFP

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

Smart Modem with

CX20463/CX20493 SmartDAA

and Optional CX20437 Voice

Codec

Data Sheet

Doc. No. 101898F

February 24, 2003

SmartV.XX Modem with 128-Pin TQFP Data Sheet

Revision Record

Revision

Date

2/24/2003

12/10/2002

11/20/2002

8/30/2002

5/17/2002

4/30/2002

Comments

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

101898F

SmartV.XX Modem with 128-Pin TQFP Data Sheet

Contents

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

1.1

1.2

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

Features .......................................................................................................................................................................... 1-6

1.2.1

General Modem Features................................................................................................................................ 1-6

1.2.2

SmartDAA Features ........................................................................................................................................ 1-7

1.2.3

Applications.................................................................................................................................................... 1-8

Technical Overview......................................................................................................................................................... 1-8

1.3.1

General Description ........................................................................................................................................ 1-8

1.3.2

MCU Firmware................................................................................................................................................ 1-8

1.3.3

Operating Modes ............................................................................................................................................ 1-9

1.3.3.1

1.3.3.2

1.3.3.3

1.3.3.4

1.3.3.5

Data/Fax Modes.......................................................................................................................... 1-9

V.44 Data Compression.............................................................................................................. 1-9

Synchronous Access Mode (SAM) - Video Conferencing .......................................................... 1-9

Worldwide Operation................................................................................................................ 1-10

TAM Mode................................................................................................................................ 1-11

1.3

1.4

1.5

2.1

2.2

2.3

1.3.3.6

Voice/Speakerphone Mode (S Models) .................................................................................... 1-11

1.3.4

Reference Designs........................................................................................................................................ 1-11

Hardware Description ................................................................................................................................................... 1-11

1.4.1

CX81801 Smart Modem............................................................................................................................... 1-11

1.4.2

Digital Isolation Barrier................................................................................................................................. 1-12

1.4.3

CX20463/CX20493 SmartDAA Line Side Device .......................................................................................... 1-12

1.4.4

CX20437 Voice Codec .................................................................................................................................. 1-13

Commands ................................................................................................................................................................... 1-13

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

2.1.1

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

Parallel Host Bus Interface Operation............................................................................................................................. 2-2

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

2.3.1

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

2.3.2

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

2.3.3

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

2.3.4

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

2.3.5

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

2.3.6

Ring Detection................................................................................................................................................ 2-3

2.3.7

Billing Protection ............................................................................................................................................ 2-3

2.3.8

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

2.3.9

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

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

101898F

Conexant

iii

SmartV.XX Modem with 128-Pin TQFP Data Sheet

2.4

Data Mode ...................................................................................................................................................................... 2-4

2.4.1

Speed Buffering (Normal Mode) .................................................................................................................... 2-4

2.4.2

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

2.4.3

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

2.4.4

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

2.4.5

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

2.4.6

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

2.4.7

Retrain ............................................................................................................................................................ 2-5

2.4.8

Programmable Inactivity Timer ...................................................................................................................... 2-5

2.4.9

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

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

Error Correction and Data Compression......................................................................................................................... 2-6

2.6.1

V.42 Error Correction ..................................................................................................................................... 2-6

2.6.2

MNP 2-4 Error Correction .............................................................................................................................. 2-6

2.6.3

V.44 Data Compression.................................................................................................................................. 2-6

2.6.4

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

2.6.5

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

Telephony Extensions..................................................................................................................................................... 2-7

2.7.1

Line In Use Detection ..................................................................................................................................... 2-7

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 .......................................................................................................................................................... 2-8

2.9.1

Online Voice Command Mode ........................................................................................................................ 2-8

2.9.2

Voice Receive Mode ....................................................................................................................................... 2-8

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 ............................................................................................................................................... 2-9

2.9.7

Speakerphone Modes..................................................................................................................................... 2-9

Full-Duplex Speakerphone (FDSP) Mode (S Models)..................................................................................................... 2-9

Caller ID .......................................................................................................................................................................... 2-9

Worldwide Country Support ......................................................................................................................................... 2-10

Diagnostics ................................................................................................................................................................... 2-11

2.13.1

Commanded Tests........................................................................................................................................ 2-11

2.13.2

Power On Reset Tests .................................................................................................................................. 2-11

Low Power Sleep Mode ................................................................................................................................................ 2-11

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

3.1.1

Common to Parallel and Serial Interface Configurations................................................................................ 3-1

3.1.1.1

3.1.1.2

3.1.1.3

3.1.1.4

3.1.2

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

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

Voice Relay Interface (S Models) ............................................................................................... 3-1

Serial EEPROM Interface............................................................................................................ 3-1

2.5

2.6

2.7

2.8

2.9

2.10

2.11

2.12

2.13

2.14

3.1

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

3.1.1.5

External Bus Interface ................................................................................................................ 3-2

Serial Interface Configuration Only................................................................................................................. 3-2

3.1.2.1

Serial DTE Interface and Indicator Outputs (PARIF = Low)........................................................ 3-2

Conexant

101898F

SmartV.XX Modem with 128-Pin TQFP Data Sheet

3.1.3

Parallel Interface Configuration Only (PARIF = High)..................................................................................... 3-3

3.2

3.1.3.1

Parallel Host Bus Interface ......................................................................................................... 3-3

3.1.4

CX81801 Smart Modem Interface Signals ..................................................................................................... 3-3

CX20463 LSD Hardware Pins and Signals ................................................................................................................... 3-22

3.2.1

CX20463 LSD Signal Summary.................................................................................................................... 3-22

3.2.1.1

Smart Modem Interface (Through DIB) ................................................................................... 3-22

3.2.1.2

Telephone Line Interface .......................................................................................................... 3-22

3.2.2

CX20463 LSD Pin Assignments and Signal Definitions ............................................................................... 3-22

CX20493 LSD Hardware Pins and Signals ................................................................................................................... 3-27

3.3.1

CX20493 LSD Signal Summary.................................................................................................................... 3-27

3.3.1.1

3.3.1.2

3.3.1.3

3.3.1.4

Smart Modem Interface (Through DIB) ................................................................................... 3-27

Telephone Line Interface .......................................................................................................... 3-27

Voltage References................................................................................................................... 3-27

General Purpose Input/Output.................................................................................................. 3-28

3.3

3.4

3.3.1.5

No Connects ............................................................................................................................. 3-28

3.3.2

CX20493 LSD Pin Assignments and Signal Definitions ............................................................................... 3-28

CX20437 VC Hardware Pins and Signals (S Models)................................................................................................... 3-33

3.4.1

CX20437 VC Signal Summary...................................................................................................................... 3-33

3.4.1.1

3.4.1.2

3.4.1.3

Speakerphone Interface............................................................................................................ 3-33

Telephone Handset/Headset Interface...................................................................................... 3-33

Smart Modem Interface ........................................................................................................... 3-33

3.5

3.4.1.4

Host Interface........................................................................................................................... 3-33

3.4.2

CX20437 VC Pin Assignments and Signal Definitions ................................................................................. 3-34

Electrical and Environmental Specifications ................................................................................................................. 3-40

3.5.1

Operating Conditions, Absolute Maximum Ratings, and Power Requirements ........................................... 3-40

3.5.2

Interface and Timing Waveforms ................................................................................................................. 3-42

3.5.2.1

3.5.2.2

External Memory Bus Timing ................................................................................................... 3-42

Parallel Host Bus Timing .......................................................................................................... 3-44

3.6

3.5.2.3

Serial DTE Interface.................................................................................................................. 3-46

Crystal Specifications ................................................................................................................................................... 3-47

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

5. Parallel Host Interface ..........................................................................................................................5-1

5.1

5.2

Overview ......................................................................................................................................................................... 5-1

Register Signal Definitions ............................................................................................................................................. 5-3

5.2.1

IER - Interrupt Enable Register (Addr = 1, DLAB = 0) .................................................................................... 5-3

5.2.2

FCR - FIFO Control Register (Addr = 2, Write Only) ....................................................................................... 5-4

5.2.3

IIR - Interrupt Identifier Register (Addr = 2) .................................................................................................. 5-5

5.2.4

LCR - Line Control Register (Addr = 3) .......................................................................................................... 5-6

5.2.5

MCR - Modem Control Register (Addr = 4).................................................................................................... 5-7

5.2.6

LSR - Line Status Register (Addr = 5)............................................................................................................ 5-7

5.2.7

MSR - Modem Status Register (Addr = 6) ..................................................................................................... 5-9

5.2.8

RBR - RX Buffer (Receiver Buffer Register) (Addr = 0, DLAB = 0) ................................................................ 5-9

5.2.9

THR - TX Buffer (Transmitter Holding Register) (Addr = 0, DLAB = 0).......................................................... 5-9

5.2.10

Divisor Registers (Addr = 0 and 1, DLAB = 1).............................................................................................. 5-10

5.2.11

SCR - Scratch Register (Addr = 7) ............................................................................................................... 5-10

101898F

Conexant

CX81801-33 Related Products

	CX81801-33	CX20463-11
Description	Modem-Data/Fax/Voice, 56kbps Data, 14.4kbps Fax, CMOS, PQFP128, 1.60 MM HEIGHT, TQFP-128	Modem-Data/Fax/Voice, 56kbps Data, 14.4kbps Fax, CMOS, PQFP32, 1.60 MM HEIGHT, TQFP-32
Is it Rohs certified?	incompatible	incompatible
Parts packaging code	QFP	QFP
package instruction	LFQFP, QFP128,.63X.87,20	LQFP, QFP32,.35SQ,32
Contacts	128	32
Reach Compliance Code	compliant	compli
data rate	56 Mbps	56 Mbps
Fax rate	14.4 kbps	14.4 kbps
JESD-30 code	R-PQFP-G128	S-PQFP-G32
JESD-609 code	e0	e0
length	20 mm	7 mm
Number of functions	1	1
Number of terminals	128	32
Maximum operating temperature	70 °C	70 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LFQFP	LQFP
Encapsulate equivalent code	QFP128,.63X.87,20	QFP32,.35SQ,32
Package shape	RECTANGULAR	SQUARE
Package form	FLATPACK, LOW PROFILE, FINE PITCH	FLATPACK, LOW PROFILE
power supply	3.3 V	3.3 V
Certification status	Not Qualified	Not Qualified
Maximum seat height	1.6 mm	1.6 mm
Nominal supply voltage	3.3 V	3.3 V
surface mount	YES	YES
technology	CMOS	CMOS
Telecom integrated circuit types	MODEM-DATA/FAX/VOICE	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	0.5 mm	0.8 mm
Terminal location	QUAD	QUAD
width	14 mm	7 mm
Base Number Matches	1	1

Recommended Resources

Transistor audio amplifier circuit with DC coupling

Constant current timing charger IC (U2403B) circuit

2x voltage circuit diagram

XCT-131 temperature controller circuit

LED pulse indicator

Receiver component SB-100ARX

Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components