Datasheet > OCM22-JTDKV-DB

OCM22-JTDKV-DB

更新时间： 2024-09-15 03:45:23

品牌	Logo	应用领域
杰尔 - AGERE		调制解调器
页数	文件大小	规格书
4页	184K
描述
One-Chip Modem for Embedded Applications

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OCM22-JTDKV-DB 数据手册

Product Brief Rev 1.0

April 2005

OCM-22

One-Chip Modem for Embedded Applications

Features

Introduction

■ Controller and data pump in a single 48-pin TQFP

with two integrated peripheral interfaces:

— Partial ISA (8-bit parallel).

OCM-22 is a low-cost modem solution for low-speed

embedded applications. OCM22 includes a simplified

AT command set and supports data rates from

300 bits/s (V.21) to 2400 bits/s (V.22bis) and only

requires a CSP1034 or CSP1035A to make a com-

plete modem.

— RS232.

■ Data mode capabilities range:

— V.22bis: 2400 bits/s.

— V.22: 1200 bits/s.

— V.23: 1200/600 bits/s.

— V.21: 300 bits/s.

OCM-22 provides a choice of two system interfaces,

a serial interface or an 8-bit parallel interface. The

serial interface can be used in systems that have an

available serial port. In other systems, the parallel

interface can be I/O or memory mapped onto typical

processor buses.

— Bell 212A: 1200 bits/s.

— Bell 103: 300 bits/s.

■ Serial DTE interface:

— Hardware and software flow control.

— Asynchronous data format: 19,200 bits/s, 8-bit

data, no parity, 1 stop bit.

In typical applications, OCM-22 is paired with Agere's

CSP1035A silicon DAA to implement a low-cost

worldwide modem. OCM-22 can also be used with

Agere's CSP1034 line codec for traditional trans-

former-based DAA designs.

■ Parallel DTE interface for connection to system I/O

or memory bus.

■ DAA support:

— CSP1035A silicon DAA.

— CSP1034C with transformer DAA.

Applications

■ Set-top-box

■ Supports low-cost, call-progress speaker.

■ Verification machines

■ Point of sale

■ Support for country-specific settings

(homologation) under host control.

■ Supports extension phone detection for set-top

box applications when used with CSP1035A DAA.

■ Franking machines

■ Other low-speed data

■ Customized feature set using code downloads into

on-chip RAM.

■ Internal PLL to generate high-speed clocks from

external low-cost crystal.

■ Single 3.3 V supply.

■ Type 1 caller ID support (US, UK, France, Ger-

many, and Spain).

12 3 4

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