73K322L

更新时间： 2024-09-18 21:53:51

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
30页	289K
描述
CCITT V.23, V.22, V.21 Single-Chip Modem

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中文翻译

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数据手册

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73K322L 数据手册

73K322L

CCITT V.23, V.22, V.21

Single-Chip Modem

April 2000

DESCRIPTION

FEATURES

The 73K322L is a highly integrated single-chip

modem IC which provides the functions needed to

construct a CCITT V.23, V.22 and V.21 compatible

modem, capable of 1200 or 0-300 bit/s full-duplex

operation or 0-1200 bit/s half-duplex operation with

or without the back channel over dial-up lines. The

73K322L is an enhancement of the 73K221L single-

chip modem with performance characteristics

suitable for European and Asian telephone systems.

The 73K322L produces either 550 or 1800 Hz guard

tone, recognizes and generates a 2100 Hz answer

tone, and supports V.21 for 300 Hz FSK operation. It

also operates in V.23, 1200 bit/s FSK mode. The

73K322L 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 PLCC or DIP

package. The 73K322L operates from a single +5V

supply with very low power consumption.

•

One-chip CCITT V.23, V.22 and V.21 ITU

compatible modem data pump

•

Full-duplex operation at 0-300 bit/s (FSK) or 600

and 1200 bit/s (DPSK) or 0-1200 bit/s (FSK)

forward channel with or without 0-75 bit/s back

channel

•

Interfaces directly with standard microprocessors

(8048, 80C51 typical)

•

Serial or parallel microprocessor bus for control

Serial port for data transfer

Both synchronous and asynchronous modes of

operation

•

Call progress, carrier, precise answer tone (2100

Hz),

calling tone (1300 Hz) and FSK mark

detectors

•

DTMF and 550 or 1800 Hz guard tone generators

Test modes available: ALB, DL, RDL, Mark,

Space, Alternating bit patterns

•

Precise automatic gain control allows 45 dB

dynamic range

The 73K322L includes the DPSK and FSK

modulator/demodulator functions, call progress and

handshake tone monitor test modes, and a tone

generator capable of producing DTMF, answer,

calling and 550 or 1800 Hz guard tone. This device

supports V.23, V.22 (except mode v) and V.21

modes of operation, allowing both synchronous and

CMOS technology for low power consumption

using 60 mW @ 5V from a single power supply

Surface mount PLCC package available

(continued)

BLOCK DIAGRAM

DTMF &

DATA

8-BIT

AD0-AD7

TONE

BUS

GENERATORS

BUFFER

BUS

FOR

FSK

MODULATOR/

TRANSMIT

FILTER

DEMODULATOR

TXA

RXA

READ

WRITE

CONTROL

LOGIC

CONTROL

AND

ALE

DIGITAL

PSK

MODULATOR/

DEMODULATOR

RECEIVE

FILTER

PROCESSING

RESET

INT

STATUS

AND

SMART

DIALING

DETECT

FUNCTIONS

CONTROL

LOGIC

SERIAL

PORT

FOR

TESTS:

ALB, DLB

RDLB

TXD

RXD

DATA

PATTERNS

CLOCK

GENERATOR

POWER

12 3 4 5 6 7...30

中文翻译

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与73K322L相关器件

型号	品牌	获取价格	描述	数据表
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
73K322L-IP	TDK	获取价格	CCITT V.23, V.22, V.21 Single-Chip Modem
73K322L-IP	SST	获取价格	Modem, 1.2kbps Data, PDIP28
73K322LS-IP	SST	获取价格	Modem, CMOS, PDIP22
73K324BL	TERIDIAN	获取价格	Single-Chip Modem w/ Integrated Hybrid
73K324BL	TDK	获取价格	V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid
73K324BL-IGT	ETC	获取价格	Single-Chip Modem w/Integrated Hybrid
73K324BL-IH	TERIDIAN	获取价格	Modem, 2.4kbps Data, CMOS, PQCC32, PLASTIC, LCC-32
73K324BL-IH/F	TERIDIAN	获取价格	Single-Chip Modem w/ Integrated Hybrid

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