ML7020MB Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Lista de partido

ML7020MB

1200 bps MODEM for Remote Control Systems

Oki Electric Industry 

1Semiconductor

BLOCK DIAGRAM

TI–

TI+

TIO

LI1–

LI1+

LI1O

LI2–

Input Amplifier 1

Input Amplifier 2

Input Amplifier 3

SW1

SW2

LI2O

Output Amplifier 1

TO

1.2 kΩ

SW4

Output Amplifier 2

LO–

–1

1.2 kΩ

LO+

+1

Post-

LPF

Output Amplifier 3

SW5

SWI

SGO

SGC

SW3

SG

DTMF

Reception

CPT

Detection

Modem

Reception

CPT

Transmission

Modem

Transmission

ATT

DTMF

Transmission

Oscillator

Circuit

FEDL7020-02

ML7020

SP

DETB

RD

XD

X1

X2

CLKO

MCU I/F

* CPT: Call progress tone

* The state shown of each switch is that when the register is set to “0”.

2/19

Share Link: