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73M2921 PDF预览

73M2921

更新时间: 2024-01-27 03:57:27
品牌 Logo 应用领域
东电化 - TDK 电信电信集成电路
页数 文件大小 规格书
41页 209K
描述
Modem, 2.4kbps Data, TQFP

73M2921 技术参数

生命周期:Obsolete零件包装代码:QFP
包装说明:QFP,针数:100
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.84Is Samacsys:N
其他特性:IT CAN ALSO OPERATE AT 5V NOMINAL SUPPLY数据速率:2.4 Mbps
传真率:9.6 kbpsJESD-30 代码:R-PQFP-G100
长度:20 mm功能数量:1
端子数量:100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:QFP封装形状:RECTANGULAR
封装形式:FLATPACK认证状态:Not Qualified
座面最大高度:2.95 mm标称供电电压:3.3 V
表面贴装:YES技术:CMOS
电信集成电路类型:MODEM-DATA/FAX温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:0.65 mm
端子位置:QUAD宽度:14 mm
Base Number Matches:1

73M2921 数据手册

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73M2921  
Advanced Single  
Chip Modem  
Advanced Information  
February 1999  
DESCRIPTION  
FEATURES  
The 73M2921 is a CMOS integrated circuit which  
provides all the modem “Data Pump” functions  
required to implement a V.22bis data modem. It  
consists of a DSP (Digital Signal Processor) core  
with RAM and ROM data memory, ROM instruction  
memory, and register mapped input/output functions  
including timers, interrupts, Σ∆ ADC and DAC ports  
and Serial Data I/O.  
Automatic handshaking for all data modes  
Data Speeds:  
V.22bis - 2400 b/s  
V.22, Bell 212 - 1200 b/s  
V.21, Bell 103 - 300 b/s  
V.23 1200 b/s - 75 b/s  
Bell 202 1200 b/s  
Once the 73M2921 has been initialized, all call  
progress and modem handshaking is automatic.  
The default conditions may be changed as required  
for country specific or custom applications.  
Facsimile Speeds:  
V.29 - 9600, 7200 b/s  
V.27ter - 4800, 2400 b/s  
V.21 ch 2 - 300 b/s  
The 73M2921 provides DTMF tone generation and  
detection, precise call progress detect and ADSI  
functions such as CAS tone detection.  
V.8bis applications  
Designed for 3.3 and 5-Volt systems.  
Low operating power.  
Other features include a parallel interface control  
port between the host processor and the 73M2921.  
A
synchronous serial data channel provides  
Speaker monitor output  
synchronizing clocks RXCLK and TXCLK from the  
modem pump to the controller.  
Provides 2 tone generators for single tone or  
DTMF generation  
The 73M2921 contains an oscillator and power  
control features.  
Provides DTMF tone detection  
Provides 4 precise and 1 imprecise call  
progress filters and corresponding detect  
The host controller function can be implemented with  
a 73M2910 communications micro controller or  
another commercial microcontroller (such as the  
68302). The 73M2921 has been optimized to work  
with the 73M2910 synchronous serial port.  
bits with programmable  
frequencies  
thresholds and  
Provides CAS tone detection for ADSI and  
CLASS feature support  
Supports parallel (8 bit) control, and  
synchronous serial data I/O  
73M2921 provides a microcontroller inter-  
rupt  
Packaging: The 73M2921 is available in a  
QFP production package. A PGA package is  
available for prototyping  
Rev M  

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