M65855FP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M65855FP

1 Chip Digital Echo with Microphone mixing Amplifier

MITSUBISHI ELECTRIC  

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PIN DESCRIPTION

MITSUBISHI SOUND PROCESSOR IC's

50 M65855FP

SERIES

KARAOKE

Pin No. Symbol

Name I/O

Function

1

GND

GND

-

2

ECHOVOL

Echo Volume control

I

Echo level control with external DC voltage

(from 0 to -10,-∞ 8 steps)

3

REF Reference

- To connect 1/2 Vcc output and filter capacitor

4

OP2 IN Opeamp 2 input

I Uses external C to form an D/A conversion

integrator

5

OP2 OUT Opeamp 2 output O

6

LPF2 IN

Low pass filter 2

input

I

Uses external CR to form a low pass

7

LPF2 OUT

Low pass filter 2

output

O filter at the input side

8

MIC OUT

Microphone mixing

output

O Mixing output echo output and microphone

9

MIC IN

Microphone input

I Microphone input

10

LPF1 IN

Low pass filter 1

input

I Uses external CR to form a low pass

11

LPF1 OUT

Low pass filter 1

output

filter at the input side

O

12

OP1 OUT Opeamp 1 output O Uses external C to form an A/D conversion

integrator

13

OP1 IN

Opeamp 1 input

I

14

VCC

Power Supply

- Applies a voltage of 3.5V to 5.5V(Rated5V)

15

ECHOMUTE Echo mute control

I Echo mute control and clock stop control

with external DC voltage

16

CLOCK Clock control

I Controls a built-in clock generation circuit with

external R

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