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MC145442B中文資料摩托羅拉數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

MC145442B
廠商型號(hào)

MC145442B

功能描述

SINGLE-CHIP 300-BAUD MODEM

文件大小

113.1 Kbytes

頁(yè)面數(shù)量

12 頁(yè)

生產(chǎn)廠商 Motorola, Inc
企業(yè)簡(jiǎn)稱(chēng)

Motorola摩托羅拉

中文名稱(chēng)

加爾文制造公司官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

下載地址一下載地址二到原廠下載

更新時(shí)間

2024-12-25 15:29:00

MC145442B規(guī)格書(shū)詳情

Single–Chip 300–Baud Modem

The MC145442B and MC145443B silicon–gate CMOS single–chip low–speed modems contain a complete frequency shift keying (FSK) modulator, demodulator, and filter. These devices are compatible with CCITT V.21 (MC145442B) and Bell 103 (MC145443B) specifications. Both devices provide full–duplex or half–duplex 300–baud data communication over a pair of telephone lines. They also include a carrier detect circuit for the demodulator section and a duplexer circuit for direct operation on a telephone line through a simple transformer.

? MC145442B Compatible with CCITT V.21

? MC145443B Compatible with Bell 103

? Low–Band and High–Band Band–Pass Filters On–Chip

? Simplex, Half–Duplex, and Full–Duplex Operation

? Originate and Answer Mode

? Analog Loopback Configuration for Self Test

? Hybrid Network Function On–Chip

? Carrier Detect Circuit On–Chip

? Adjustable Transmit Level and CD Delay Timing

? On–Chip Crystal Oscillator (3.579 MHz)

? Single +5 V Power Supply Operation

? Internal Mid–Supply Generator

? Power–Down Mode

? Pin Compatible with MM74HC943

? Capable of Driving –9 dBm into a 600 ? Load

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