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參數(shù)資料
| 型號： | ML7020 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 1200 bps MODEM for Remote Control Systems |
| 中文描述： | 1200 bps調(diào)制解調(diào)器遠程控制系統(tǒng) |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 125K |
| 代理商： | ML7020 |
FEDL7020-02
1
Semiconductor
ML7020
1200 bps MODEM for Remote Control Systems
This version: Nov. 2000
Previous version: Feb. 2000
1/19
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
μ
A 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
line transformer.
Analog output for the terminal is of the single-ended type and can drive a 1.2 k
load.
Built-in switch for selecting the 600
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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