73K302L

更新时间： 2024-11-10 21:53:31

品牌	Logo	应用领域
东电化 - TDK		调制解调器
页数	文件大小	规格书
29页	283K
描述
Single-Chip Modem

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中文翻译

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数据手册

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73K302L 数据手册

73K302L

Bell 212A, 103, 202

Single-Chip Modem

April 2000

DESCRIPTION

FEATURES

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.

•

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

K-Series

1-chip

modems

•

Interfaces directly with standard microprocessors

(8048, 80C51 typical)

Serial port for data transfer

•

Both synchronous and asynchronous modes of

operation

•

Call progress, carrier, precise answer tone

(2225 Hz), soft carrier turn-off (SCT), and FSK mark

detectors

DTMF, answer, and SCT tone generators

•

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

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

operation, allowing both synchronous and

(continued)

BLOCK DIAGRAM

DTMF &

DATA

BUS

8-BIT

BUS

TONE

AD0-AD7

GENERATORS

BUFFER

FSK

MODULATOR/

FOR

DEMODULATOR

TRANSMIT

FILTER

ALE

READ

WRITE

CONTROL

LOGIC

TXA

CONTROL

AND

DIGITAL

PROCESSING

PSK

RESET

RECEIVE

FILTER

MODULATOR/

RXA

DEMODULATOR

STATUS

AND

CONTROL

LOGIC

SMART

DIALING

DETECT

FUNCTIONS

INT

SERIAL

PORT

FOR

TESTS:

ALB, DLB

RDLB

TXD

RXD

DATA

PATTERNS

CLOCK

GENERATOR

POWER

12 3 4 5 6 7...29

中文翻译

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与73K302L相关器件

型号	品牌	获取价格	描述	数据表
73K302L-IH	TDK	获取价格	Single-Chip Modem
73K302L-IP	TDK	获取价格	Single-Chip Modem
73K321L	TDK	获取价格	CCITT V.23, V.21 Single-Chip Modem
73K321L-IH	TDK	获取价格	CCITT V.23, V.21 Single-Chip Modem
73K321L-IP	TDK	获取价格	CCITT V.23, V.21 Single-Chip Modem
73K321L-IP	TI	获取价格	1.2kbps DATA, MODEM, PDIP28, 0.600 INCH, PLASTIC, DIP-28
73K321SL-IP	TI	获取价格	1.2kbps DATA, MODEM, PDIP22, 0.400 INCH, PLASTIC, DIP-22
73K322L	TDK	获取价格	CCITT V.23, V.22, V.21 Single-Chip Modem
73K322L-IH	TDK	获取价格	CCITT V.23, V.22, V.21 Single-Chip Modem
73K322L-IH	SST	获取价格	Modem, 1.2kbps Data, PQCC28

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