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73K321L-IP

更新时间: 2024-01-19 11:31:04
品牌 Logo 应用领域
东电化 - TDK 调制解调器电信集成电路电信电路光电二极管
页数 文件大小 规格书
24页 134K
描述
CCITT V.23, V.21 Single-Chip Modem

73K321L-IP 技术参数

生命周期:Transferred包装说明:,
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.09其他特性:HALF DUPLEX; FULL DUPLEX
数据速率:1.2 MbpsJESD-30 代码:R-PDIP-T22
功能数量:1端子数量:22
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装形状:RECTANGULAR
封装形式:IN-LINE认证状态:Not Qualified
最大压摆率:12 mA标称供电电压:5 V
表面贴装:NO电信集成电路类型:MODEM
温度等级:INDUSTRIAL端子形式:THROUGH-HOLE
端子位置:DUALBase Number Matches:1

73K321L-IP 数据手册

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73K321L  
CCITT V.23, V.21  
Single-Chip Modem  
April 2000  
DESCRIPTION  
FEATURES  
The 73K321L is a highly integrated single-chip  
modem IC which provides the functions needed to  
construct a CCITT V.23 and V.21 compatible  
modem, capable of 0-300 bit/s full-duplex or 0-1200  
bit/s half-duplex operation over dial-up telephone  
lines. The 73K321L provides 1200 bit/s operation in  
V.23 mode and 300 bit/s in V.21 mode. The  
73K321L also can both detect and generate the  
2100 Hz answer tone needed for call initiation. The  
73K321L integrates analog, digital, and switched-  
capacitor array functions on a single substrate,  
offering excellent performance and a high level of  
functional integration in a single 28-pin DIP or PLCC  
package. The 73K321L operates from a single +5V  
supply with very low power consumption.  
·
One-chip CCITT V.23 and V.21 standard  
compatible modem data pump  
·
Full-duplex operation at 0-300 bit/s (V.21) or  
0-1200 bit/s (V.23) forward channel with or  
without 0-75 bits/s back channel  
·
·
Full Duplex 0-1200 bit/s (V.23) in 4-wire mode  
Pin and software compatible with other TDK  
Semiconductor Corporation K-Series 1-chip  
modems  
·
Interfaces directly with standard micro-  
processors (8048, 80C51 typical)  
·
·
Serial port for data transfer  
Call progress, carrier, precise answer tone  
(2100 Hz), calling tone (1300 Hz) and FSK  
mark detectors  
The  
73K321L  
includes  
the  
FSK  
modulator/demodulator functions, call progress and  
handshake tone monitor test modes, and a tone  
generator capable of producing DTMF, answer,  
calling tones. The 73K321L is designed to appear to  
·
·
DTMF generator  
Test modes available: ALB, DL, RDL, Mark,  
Space, Alternating bit patterns  
the systems designer as  
a
microprocessor  
·
·
Precise automatic gain control allows 45 dB  
dynamic range  
peripheral, and will easily interface with popular one-  
chip microprocessors (80C51 typical) for control of  
modem functions through its 8-bit multiplexed  
address/data bus or via an optional serial control  
bus. An ALE control line simplifies address  
CMOS  
technology  
for  
low  
power  
consumption using 60 mW @ 5V from a  
single power supply  
demultiplexing.  
Data  
communications  
occurs  
through a separate serial port only.  
(continued)  
BLOCK DIAGRAM  
DATA  
BUS  
BUFFER  
DTMF &  
TONE  
GENERATORS  
8-BIT  
BUS  
AD0-AD7  
FSK  
MODULATOR/  
DEMODULATOR  
FOR  
CONTROL  
AND  
TRANSMIT  
FILTER  
RD  
WR  
READ  
WRITE  
CONTROL  
LOGIC  
TXA  
RXA  
ALE  
CS  
RECEIVE  
FILTER  
RESET  
INT  
STATUS  
STATUS  
AND  
SMART  
DIALING  
CONTROL  
LOGIC  
&
SERIAL  
PORT  
FOR  
TESTS:  
ALB,DLB  
RDLB  
PATTERNS  
DETECT  
FUNCTIONS  
TXD  
RXD  
DATA  
CLOCK  
GENERATOR  
POWER  

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