Datasheet > 73K212AL

73K212AL

更新时间： 2024-11-11 03:07:35

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
26页	274K
描述
V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid

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中文翻译

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数据手册

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73K212AL 数据手册

73K222BL

V.22, V.21, Bell 212A, Bell 103 Single-Chip

Modem with Integrated Hybrid

April 2000

DESCRIPTION

FEATURES

The 73K222BL is a highly integrated single-chip

modem IC which provides the functions needed to

construct a CCITT V.22, V.21, Bell 212A and Bell

103, compatible modem, capable of 1200 bit/s full-

duplex operation over dial-up lines. The 73K222BL

is an enhancement of the 73K222AL single-chip

modem which adds the hybrid hook switch control,

and driver to the 73K222AL. In Bell 212A mode, the

73K222BL provides the normal Bell 212A and Bell

103 functions and employs a 2225 Hz answer tone.

The 73K222BL in V.22 mode produces either 550 or

1800 Hz guard tone, recognizes and generates a

2100 Hz answer tone, and allows 600 bit/s V.22 or

0-300 bit/s V.21 operation. The device integrates

analog, digital, and switched-capacitor array

functions on a single substrate, offering excellent

•

Includes features of 73K222AL single-chip

modem

One-chip CCITT V.22, V.21, Bell 212A and Bell

103 standard compatible modem data pump

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

600 and 1200 bit/s (DPSK)

On chip 2-wire/4-wire hybrid driver and off-

hook relay buffer driver

Serial or parallel microcontroller control

interface

Interfaces

directly

with

standard

microcontroller (8048, 80C51 typical)

Serial port for data transfer

•

Both synchronous and asynchronous modes

of operation including V.22 extended

overspeed

performance and

high level of functional

integration in a 32-Lead PLCC and 44-Lead TQFP

package. It operates from a single +5 V supply.

•

Call progress, carrier, precise answer tone

(2100 or 2225 Hz), and long loop detectors

The 73K222BL includes the DPSK and FSK

modulator/demodulator functions, call progress and

handshake tone monitor and a tone generator

capable of tones required for European applications.

This device supports V.22 (except mode v) and V. 21

modes of operation, allowing both synchronous and

asynchronous communication. Test features such as

analog loop, digital loop, and remote digital loopback

are supported. Internal pattern generators are also

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

CMOS technology for low power consumption

using 60 mW @ 5 V

included for self-testing.

(continued)

Single +5 V supply

BLOCK DIAGRAM

DTMF &

DATA

BUS

8-BIT

BUS

AD0-AD7

TONE

GENERATORS

BUFFER

FSK

MODULATOR/

FOR

DEMODULATOR

TRANSMIT

FILTER

ALE

READ

WRITE

CONTROL

LOGIC

TXA1

TXA2

CONTROL

AND

2W/4W

HYBRID

DIGITAL

PROCESSING

PSK

MODULATOR/

DEMODULATOR

RECEIVE

FILTER

RXA

RESET

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...26

中文翻译

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与73K212AL相关器件

型号	品牌	获取价格	描述	数据表
73K212ASL-IP	TDK	获取价格	Modem, 1.2kbps Data, PDIP22, PLASTIC, DIP-22
73K212-IH	SST	获取价格	Modem, CMOS, PQCC28
73K212LS-IP	SST	获取价格	Modem, CMOS, PDIP22
73K221AL	TDK	获取价格	V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid
73K221AL-IP	TDK	获取价格	Modem, 1.2kbps Data, PDIP28, 0.600 INCH, DIP-28
73K221L-IH	SST	获取价格	Modem, 1.2kbps Data, PQCC28
73K221L-IP	SST	获取价格	Modem, 1.2kbps Data, PDIP28
73K221SL-IP	SST	获取价格	Modem, 1.2kbps Data, PDIP22
73K222AL	TDK	获取价格	V.22, V.21, Bell 212A, 103 Single-Chip Modem
73K222AL	TERIDIAN	获取价格	Single-Chip Modem

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