M65845AFP

REJ03F0170-0201 Rev.2.01 Jan 25, 2008

Page 4 of 13

Pin Description

Pin

No.

Symbol

Pin Name

Function

1

MIC1IN

MIC1 input

Connect MIC1

2

ALC1

ALC1 control

Connect C which determine recovery time

3

MIC1NFIN

MIC1 NF input

4

MIC1OUT

MIC1 output

Set up MIC1 amp gain for feedback circuit

5

MIC1VOLIN

MIC1 volume input

Connect microphone volume which turn down input signal

6

MIC2IN

MIC2 input

Connect MIC2

7

ALC2

ALC2 control

Connect C which determine ALC attack, recovery time

8

MIC2NFIN

MIC2 NF input

9

MIC2OUT

MIC2 output

Forms MIC2 amp gain with feedback

10

MIC2VOLIN

MIC2 volume input

Connect microphone volume which turn down input signal

11

MICOUT

MIC output

Mixing output with MIC1 and MIC2

12

LPF1 IN

Low pass filter 1 input

13

LPF1 OUT

Low pass filter 1 output

Forms the front low pass filter with external CR for digital echo

14

ADINTIN

A/D integral input

15

ADINTOUT

A/D integral output

Forms integrator with external C and R

16

ADCONT

A/D control

ADM A/D adaptive control

17

REF

Reference

18

GND

GND

19

Power supply

20

DACONT

D/A control

ADM A/D adaptive control

21

DAINTIN

D/A integral input

22

DAINTOUT

D/A integral output

Forms integrator with external C

23

LPF2 IN

Low pass filter 2 input

24

LPF2 OUT

Low pass filter 2 output

Forms post low pass filter with external CR for digital echo

25

ECHOVOLIN

Echo volume input

Connect microphone volume which turn down input signal

26

RLINEIN

Rch line input

27

LLINEIN

Lch line input

28

RLINEOUT

Rch line output

29

LLINEOUT

Lch line output

Mixing output with line and microphone

30

MICECHOOUT

MIC echo output

Mixing output with microphone and echo

31

MICSW

MIC SW

L: Microphone OFF, H: Microphone ON

32

CLOCK CONT

Clock control

Controls built-in clock generation circuit with external R

33

AUDSW1

Audio SW1

34

AUDSW2

Audio SW2

Changing source sound signal

35

VALC

ALC supply voltage

control

Form ALC operation voltage with control voltage

36

VCFIL

Vocal cut filter

Through frequency under vocal level