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73M1903C

更新时间： 2024-02-06 19:14:14

品牌	Logo	应用领域
TERIDIAN		调制解调器
页数	文件大小	规格书
46页	452K
描述
Modem Analog Front End

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73M1903C 技术参数

生命周期：	Transferred	包装说明：	ROHS COMPLIANT, MO-153AC, TSSOP-20
Reach Compliance Code：	unknown	风险等级：	5.59
商用集成电路类型：	CONSUMER CIRCUIT	JESD-30 代码：	R-PDSO-G20
长度：	6.5 mm	功能数量：	1
端子数量：	20	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	认证状态：	Not Qualified
座面最大高度：	1.1 mm	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
宽度：	4.4 mm	Base Number Matches：	1

73M1903C 数据手册

73M1903C

Modem Analog Front End

DATA SHEET

JANUARY 2008

DESCRIPTION

Features

•

Two pairs of software selectable transmit

differential outputs for worldwide impedance

driver implementations.

The TERIDIAN 73M1903C Analog Front End

(AFE) IC includes fully differential hybrid driver

outputs, which connect to the telephone line

interface through a transformer-based DAA. The

receive pins are also fully differential for

maximum flexibility and performance. This

arrangement allows for the design of a high

performance hybrid circuit to improve signal to

noise performance under low receive level

conditions, and compatibility with any standard

transformer intended for PSTN communications

applications.

•

Up to 56kbps (V.92) performance

Programmable sample rates (7.2-16.0kHz)

Reference clock range of 1-40MHz

Crystal frequency range of 4.9-27MHz

Master or slave mode operation and daisy

chain configurable synchronous serial Host

interface

•

Low power modes

Fully differential receiver and transmitter

Drivers for transformer interface

3.0V – 3.6V operation

•

The device incorporates a programmable sample

rate circuit to support soft modem and DSP

based implementations of all speeds up to V.92

(56kbps). The sampling rates supported are from

7.2kHz to 16.0kHz by programming the pre-

scaler NCO and the PLL NCO.

5V tolerant I/O

Industrial temperature range (-40 to +85°C)

JATE compliant transmit spectrum

•

Package options: 32 pin QFN

Applications

The TERIDIAN 73M1903C device incorporates a

digital host interface that is compatible with the

serial ports found on most commercially available

DSPs and processors and exchanges both

payload and control information with the host.

This interface can be configured as a single

master/slave mode or as a daisy chain mode that

allows the user to connect up to eight 73M1903C

devices to a single host for multi Analog Front

End applications, such as, central server

modems.

•

Central site server modems

Set Top Boxes

Personal Video Recorders (PVR)

Multifunction Peripherals (MFP)

Fax Machines

Internet Appliances

Game Consoles

Point of Sale Terminals

Automatic Teller Machines

Speaker Phones

Digital Answering Machines

RF Modems

Costs saving features of the device include an

input reference frequency circuit, which accepts a

range of crystals from 4.9-27MHz. It also accepts

external reference clock values between 1MHz-

40MHz generated by the host processor. In most

applications, this eliminates the need for a

dedicated crystal oscillator and reduces the bill of

materials (BOM).

VBG

(HYBRID)

TXAP1

Transmit

Drivers/

Filters

Analog

Sigma

Delta

TXAN1

Ref.

TXAP2

TXAN2

SCLK

SDIN

SDOUT

Control

Receiver

MUX/

Serial

Port

RXAP

RXAN

Registers

DAC

Clock

Crystal

Filters

FSD

GPIO

DAA

Control

Logic

The 73M1903C also supports two analog loop

back and one digital loop back test modes.

controls

HOOK

Page: 1 of 46

Rev 4.3

12 3 4 5 6 7...46

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与73M1903C相关器件

型号	品牌	描述	获取价格	数据表
73M1903C-IM	TERIDIAN	Consumer Circuit, LEAD FREE, QFN-32	获取价格
73M1903C-IM/F	TERIDIAN	Modem Analog Front End	获取价格
73M1903C-IMR/F	TERIDIAN	Modem Analog Front End	获取价格
73M1903-IGV	TERIDIAN	Consumer Circuit, PQFP32, TQFP-32	获取价格
73M1903-IGV/F	TDK	Modem, PQFP32	获取价格
73M1903-IGV/F	TERIDIAN	Consumer Circuit, PQFP32, LEAD FREE, TQFP-32	获取价格

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