M65856SP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M65856SP

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

MITSUBISHI ELECTRIC  

MITSUBISHI SOUND PROCESSOR ICs

M65856SP

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

PIN DESCRIPTION

Pin No.

Symbol

1 MIC SW

2 MCLKCONT

3

VALC

4

MIC1IN

5

ALC1

6

MIC1NFIN

7

MIC1OUT

8

MIC1VOLIN

9

MIC2IN

10

ALC2

11

MIC2NFIN

12

MIC2OUT

13

MIC2VOLIN

14

MICOUT

Name

I/O

Function

Microphone SW

I L: MIC OFF H: MIC ON

Clock control

ALC operating voltage setting

terminal

–

Controls built-in clock generation circuit with

external R

–

To set ALC operating voltage according

to applied voltage

Microphone 1 input

ALC1 control

Microphone 1 negative

feedback input

Microphone 1 output

Microphone 1 volume input

I To connect MIC1

To connect ALC1 attack / recovery time

– setting capacitor

To connect low cut-off frequency of MIC1

I amplifier setting capacitor

O

To connect capacitor to reduce noise generated

I at time of volume change

Microphone 2 input

ALC2 control

Microphone 2 negative

feedback input

I To connect MIC2

–

To connect ALC2 attack/recovery time

setting capacitor

To connect low cut-off frequency of MIC2

I amplifier setting capacitor

Microphone 2 input

Microphone 2 volume input

I

To connect capacitor to reduce noise generated

I at time of volume change

Microphone output

O Mixing output of MIC1 and MIC2

15

LPF1IN1

16

LPF1IN2

17

LPF1OUT

Low pass filter 1 input 1

Low pass filter 1 input 2

Low pass filter 1 output

I

Pre-filter before A/D convertor for

I digital delay

O

18

ADINTOUT

19

ADINTIN

20

ADCONT

A/D integrator output

A/D integrator input

A/D control

O

Composes D/A conversion integrator with

external capacitor

I

–

To determine adaptive time constant of

A/D convertor with ADM system

21

REF

Reference power output

– To connect 1/2 Vcc output and filter capacitor

MITSUBISHI

ELECTRIC

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