M65845 データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M65845

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

MITSUBISHI ELECTRIC  

M65845AFP PRELIMINARY Nsootmicee

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DIGITAL ECHO WITH

MITSUBISHI SOUND PROCESSOR

MICROPHONE MIXING CIRCUIT

ICs

PIN DESCRIPTION

No

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Symbol Pin Name

Function

MIC1IN

MIC1 INPUT

Connect MIC1

ALC1

ALC1 CONTROL Connect C which determine recovery time

MIC1NFIN MIC1 NF INPUT

MIC1OUT MIC1 OUTPUT

Set up MIC1 amp gain for feedback circuit

MIC1VOLIN MIC1 VOLUME INPUT

Connect microphone volume which turn down

input signal

MIC2IN

MIC2 INPUT

Connect MIC 2

ALC2

ALC2 CONTROL Connect C which determine ALC attack ,recovery time

MIC2NFIN MIC2 NF INPUT

MIC2OUT MIC2 OUTPUT

Forms MIC 2 amp gain with feedback

MIC2VOLIN MIC2 VOLUME INPUT

Connect microphone volume which turn down

input signal

MICOUT MIC OUTPUT

Mixing output with MIC 1 and MIC 2

LPF1 IN

LOWPASS FILTER1

INPUT

LPF1 OUT

LOWPASS FILTER1

OUTPUT

Forms the front lowpass filter with external

CR for digital echo

ADINTIN A/D INTEGRAL INPUT

ADINTOUT A/D INTEGRAL

OUTPUT

Forms integrator with external C and R

ADCONT A/D CONTROL

ADM A/D adaptive control

REF

GND

REFERENCE

GND

1/2Vcc, connect filter C

VCC

POWER SUPPLY

DACONT D/A CONTROL

ADM A/D adaptive control

MITSUBISHI

ELECTRIC

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