Datasheet > SI2457R

SI2457R

更新时间： 2024-11-26 06:44:11

品牌	Logo	应用领域
芯科 - SILICON		/
页数	文件大小	规格书
74页	1006K
描述
Modem,

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中文翻译

获取价格

数据手册

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SI2457R 数据手册

Si2457/34/15/04

V.90, V.34, V.32BIS, V.22BIS ISOMODEM WITH GLOBAL DAA

Features

ꢀ Data modem formats

ꢀ Integrated DAA

ꢁ

ITU-T, Bell

ꢁOver 6000 V Capacitive isolation

300 bps up to 56 kbps

V.21,V.22, V.29 Fast Connect

V.42, V.42bis, MNP2-5

Automatic rate negotiation

ꢁParallel phone detect

ꢁGlobally-compliant line interface

ꢁOvercurrent detection

ꢀ 27 MHz clock input

ꢀ Single 3.3 V power supply

ꢀ Firmware upgradeable

ꢀ EEPROM interface

ꢀ Type I and II caller ID decode

ꢀ No external ROM or RAM required

ꢀ UART or parallel interface

ꢀ AT command set support

ꢀ SMS / MMS support

Ordering Information

This data sheet is valid only for

those chipset combinations listed

on page 70.

ꢀ Pb-free, RoHS Compliant

Packages

ꢀ Commercial or industrial

temperature range

Pin Assignments

Applications

ꢀ Set-top boxes

ꢀ Point-of-sale terminals

ꢀ Text/video telephones

ꢀ Digital video recorder

ꢀ Digital televisions

ꢀ Remote monitoring

Si2457/34/15/04

(16-Pin Option)

CLKIN/XTALI

XTALO

16 RTS

15 DCD

V_D

ESC

13 V_A

Description

RXD

TXD

GND

The ISOmodem^®family of products is a complete modem ranging in speed from

56,000 bps to 2400 bps. Offered as a chipset with the Si2457, Si2434, Si2415, or

Si2404 system-side device and the Si3018/10 line-side device, the ISOmodem

utilizes Silicon Laboratories’ patented direct access arrangement (DAA)

technology to provide a programmable telephone line interface with an

unparalleled level of integration. These compact solutions eliminate the need for a

separate DSP, modem controller, codec, transformer, relay, opto-isolators,

clocking crystal, and 2-4 wire hybrid. Available with a system-side packaging

option of either a 16-pin SOIC or a 24-pin TSSOP, these devices are ideal for

embedded modem applications due to their flexibility, small footprint, and minimal

external component count.

INT

CTS

C1A

C2A

RESET

Si2457/34/15/04

(24-Pin Option)

CLKIN/XTALI

XTALO

SDO/EECLK/D5

DCD/D4

CLKOUT/EECS/A0

FSYNC/D6

VD3.3

ESC/D3

VD3.3

20 GND

VDB

GND

VDA

SDI/EESD/D2

RTS/D7

17 RI/D1

15 AOUT/INT

Functional Block Diagram

INT/DO

RXD/RD

TXD/WR

C1A

C2A

CTS/CS 11

RESET 12

CLKIN/XTALI

XTALO

PLL

Clocking

CLKOUT

RAM/ROM

Data Bus

Si3018/10

RXD

TXD

CTS

RTS

DCD

ESC

DCT2

IGND

DCT

Serial

Interface

DCT3

DAA

Interface

To Phone Line

C1B

C2B

QE2

Microcontroller

DSP

INT

VREG

RNG1

VREG2

RNG2

AOUT

ISOB

Parallel

Interface

D0-D7

RESET

Rev. 1.1 8/06

Si2457/34/15/04

12 3 4 5 6 7...74

中文翻译

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