Datasheet > ML7020

ML7020

更新时间： 2022-11-24 21:43:12

品牌	Logo	应用领域
冲电气 - OKI		调制解调器远程控制
页数	文件大小	规格书
19页	127K
描述
1200 bps MODEM for Remote Control Systems

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ML7020 数据手册

FEDL7020-02

This version: Nov. 2000

Previous version: Feb. 2000

Semiconductor

ML7020

1200 bps MODEM for Remote Control Systems

GENERAL DESCRIPTION

The ML7020 is a 1200 bps modem LSI developed for remote control systems. The functions incorporated are

those of a 1200 bps FSK modem conforming to ITU-T Recommendations V.23, DTMF signal generation and

detection, call progress tone (CPT) generation and detection. Each functional block can be controlled via a 4-bit

processor interface.

FEATURES

• Single 5 V power supply operation (V_DD: 4.5 to 5.5 V)

• Low power consumption: During operation: 5 mA typ.

During the power down mode: 7 µA typ.

• Built-in 1200 bps modem conforming to ITU-T V.23 recommendations

• Built-in DTMF signal generator with a switchable 6-dB attenuator

• Built-in DTMF detector (the input can be selected from either the line or the terminal)

• Built-in call progress tone generator. The output frequency can be selected from 400 Hz and 800 Hz.

• Built-in call progress tone detector

• Three analog input systems (switchable)

• Analog output for the line is of the differential type and can drive a 600 Ω line transformer.

• Analog output for the terminal is of the single-ended type and can drive a 1.2 kΩ load.

• Built-in switch for selecting the 600 Ω termination

• 4-Bit processor interface

• Built-in oscillator circuit for a 3.579545 MHz crystal

• Package: 32-Pin plastic SSOP (SSOP32-P-430-1.00-K) (Product name: ML7020MB)

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