M65853 查看數據表（PDF） - MITSUBISHI ELECTRIC
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M65853 Datasheet PDF : 17 Pages
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PRELIMINARY M65853FP 50 soNmoeticpear;aTmheistriisc
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DIGITAL ECHO
WITH
MITSUBISHI SOUND PROCESSOR ICs
MICROPHONE MIXING CIRCUIT
SE
KARAOKE
RI
ES
PIN DESCRIPTION
Pin No. Symbol
1 MCLKCONT
2 VALC
3
MIC1IN
4 ALC1
5
MIC1NFIN
6 MIC1OUT
7 MIC1VOLIN
Nam
Clock control
I/O
Function
—
Controls built-in clock generation circuit with
external R
ALC operating voltage setting
terminal
—
To set ALC operating voltage according
to applied voltage
Microphone 1 input
ALC1 control
Microphone 1 negative
feedback 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
Microphone 1 output
Microphone 1 volume input
O
To connect capacitor to reduce noise generated
at time of volume change
I
8
MIC2IN
9 ALC2
10 MIC2NFIN
Microphone 2 input
ALC2 control
Microphone 2 negative
feedback input
I To connect MIC2
—
To connect ALC2 attack/recovery
setting capacitor
time
To connect low cut-off frequency of MIC2
I amplifier setting capacitor
11 MIC2OUT
Microphone 2 input
I To connect capacitor to reduce noise generated
at time of volume change
12
MIC2VOLIN
Microphone 2 volume input I
13 MICOUT
Microphone output
O Mixing output of MIC1 and MIC2
14 LPF1IN1
15 LPF1IN2
16 LPF1OUT
17 ADINTOUT
18 ADINTIN
19 ADCONT
20 REF
Low pass filter 1 input 1
Low pass filter 1 input 2
Low pass filter 1 output
A/D integrator output
A/D integrator input
A/D control
Reference power output
I
Pre-filter before A/D convertor for
I digital delay
O
O
Composes D/A conversion integrator with
external capacitor
I
—
To determine adaptive time constant of
A/D convertor with ADM system
— To connect 1/2 Vcc output and filter capacitor
21 GND
Ground
—
MITSUBISHI
ELECTRIC
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