M65856 Mitsubishi, M65856 Datasheet - Page 3

• Manufacturer Part Number: M65856
• Description: DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
• Manufacturer: Mitsubishi

Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
PIN DESCRIPTION
MIC SW
MCLKCONT
VALC
MIC1IN
ALC1
MIC1NFIN
MIC1OUT
MIC1VOLIN
MIC2IN
ALC2
MIC2NFIN
MIC2OUT
MIC2VOLIN
MICOUT
LPF1IN1
LPF1IN2
LPF1OUT
ADINTOUT
ADINTIN
ADCONT
REF
Symbol
ALC operating voltage setting
terminal
Microphone 1 volume input
Microphone 2 volume input
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
Reference power output
Low pass filter 1 output
Low pass filter 1 input 1
Low pass filter 1 input 2
Microphone 2 negative
feedback input
Microphone 1 negative
feedback input
Microphone 1 output
A/D integrator output
Microphone 1 input
Microphone output
A/D integrator input
Microphone 2 input
Microphone 2 input
Microphone SW
Clock control
ALC1 control
ALC2 control
A/D control
Name
MITSUBISHI
ELECTRIC
I/O
–
–
–
O
–
–
I
O
O
O
–
I
I
I
I
I
I
I
I
I
I
To connect capacitor to reduce noise generated
at time of volume change
To connect capacitor to reduce noise generated
at time of volume change
To connect low cut-off frequency of MIC1
amplifier setting capacitor
To set ALC operating voltage according
to applied voltage
To connect MIC1
To connect ALC1 attack / recovery time
setting capacitor
To connect MIC2
To connect ALC2 attack/recovery time
setting capacitor
Mixing output of MIC1 and MIC2
Pre-filter before A/D convertor for
digital delay
Composes D/A conversion integrator with
external capacitor
To determine adaptive time constant of
A/D convertor with ADM system
To connect 1/2 Vcc output and filter capacitor
To connect low cut-off frequency of MIC2
amplifier setting capacitor
L: MIC OFF H: MIC ON
Controls built-in clock generation circuit with
external R
MITSUBISHI SOUND PROCESSOR ICs
M65856SP
Function