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參數(shù)資料
| 型號： | 73K302L |
| 廠商： | TDK Corporation |
| 英文描述： | Single-Chip Modem |
| 中文描述： | 單芯片調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 1/29頁 |
| 文件大小： | 282K |
| 代理商： | 73K302L |
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73K302L
Bell 212A, 103, 202
Single-Chip Modem
April 2000
DESCRIPTION
The 73K302L is a highly integrated single-chip
modem IC which provides the functions needed to
construct a Bell 202, 212A and 103 compatible
modem. The 73K302L is an enhancement of the
73K212L single-chip modem with Bell 202 mode
features added. The 73K302L is capable of 1200 or
0-300 bit/s full-duplex operation over dial-up lines.
4-wire full-duplex capability and a low speed back
channel are also provided in Bell 202 mode. The
73K302L recognizes and generates a 900 Hz soft
carrier turn-off tone, and allows 103 for 300 bit/s
FSK operation. The 73K302L 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 73K302L
operates from a single +5V supply with very low
power consumption.
The 73K302L includes the DPSK and FSK
modulator/demodulator functions, call progress and
handshake tone monitors, test modes, and a tone
generator capable of producing DTMF, answer, and
900 Hz soft carrier turn-off tone. This device
supports Bell 202, 212A and 103 modes of
operation, allowing both synchronous and
(continued)
FEATURES
One-chip Bell 212A, 103 and 202S/T standard
compatible modem data pump
Full-duplex operation at 0-300 bit/s (FSK), 1200 bit/s
(DPSK) or 0-1200 bit/s (FSK) forward channel with or
without 0-150 bit/s back channel
Full-duplex 4-wire operation in Bell 202 mode
Pin and software compatible with other TDK
Semiconductor
Corporation
modems
Interfaces directly with standard microprocessors
(8048, 80C51 typical)
Serial port for data transfer
Both synchronous and asynchronous modes of
operation
Call
progress,
carrier,
(2225 Hz), soft carrier turn-off (SCT), and FSK mark
detectors
DTMF, answer, and SCT tone generators
Test modes available: ALB, DL, RDL, Mark, Space,
Alternating bit patterns
CMOS technology for low power consumption using
60 mW @ 5V from a single power supply
K-Series
1-chip
precise
answer
tone
BLOCK DIAGRAM
DIGITAL
PROCESSING
DTMF &
TONE
GENERATORS
FSK
MODULATOR/
DEMODULATOR
PSK
MODULATOR/
DEMODULATOR
SMART
DIALING
&
DETECT
FUNCTIONS
POWER
TESTS:
ALB, DLB
RDLB
PATTERNS
TRANSMIT
FILTER
DATA
BUS
BUFFER
READ
WRITE
CONTROL
LOGIC
STATUS
AND
CONTROL
LOGIC
8-BIT
BUS
FOR
CONTROL
AND
STATUS
SERIAL
PORT
FOR
DATA
TXA
RXA
I
V
V
G
R
CLOCK
GENERATOR
X
X
C
T
E
RD
WR
ALE
CS
RESET
INT
TXD
RXD
AD0-AD7
RECEIVE
FILTER
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73K302L-IH | Single-Chip Modem |
| 73K302L-IP | Single-Chip Modem |
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| 74ALVCH2245MTC | 3-Line To 8-Line Decoders/Demultiplexers 16-SOIC -40 to 85 |
| 74ALVCH2245WM | 3-Line To 8-Line Decoders/Demultiplexers 16-SOIC -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73K302L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem |
| 73K302L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem |
| 73K321L | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
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