– 51 –
CD-BK250W/CD-BK2600W/CD-BK270W
1
MIC SW
Input
Microphone SW L: MIC OFF, H: MIC ON
2
MCLKCONT
—
Clock Control.
Controls built-in clock generation circuit with external R.
3
VALC
—
ALC operating voltage setting terminal.
To set ALC operating voltage according to applied voltage.
4
MIC1 IN
Input
Microphone 1 input.
To connect MIC 1.
5*
ALC1
—
ALC1 control.
To connect ALC1 attack/recovery time setting capacitor.
6*
MIC1NFIN
Input
Microphone 1 negative feedback input.
To connect low cut-off frequency of MIC1 amplifier setting capacitor.
7*
MIC1 OUT
Output
Microphone 1 output.
8
MIC1 VOLIN
Input
Microphone 1 volume input.
To connect capacitor to reduce noise generated at time of volume change.
9
MIC2 IN
Input
Microphone 2 input.
To connect MIC 2.
10
ALC2
—
ALC2 control.
To connect ALC2 attack/recovery time setting capacitor.
11
MIC2 NFIN
Input
Microphone 2 negative feedback input.
To connect low cut-off frequency of MIC2 amplifier setting capacitor.
12
MIC2 OUT
Output
Microphone 2 output.
13
MIC2 VOLIN
Input
Microphone 2 volume input.
To connect capacitor to reduce noise generated at time of volume change.
14
MICOUT
Output
Microphone output.
Mixing output of MIC 1 and MIC 2.
15
LPF1IN1
Input
Low pass filter 1 input 1.
Pre-filter before A/D convertor for digital delay.
16
LPF1 IN2
Input
Low pass filter 1 input 2.
Pre-filter before A/D convertor for digital delay.
17
LPF1 OUT
Output
Low pass filter 1 output.
Pre-filter before A/D convertor for digital delay.
18
AD INTOUT
Output
A/D integrator output.
Composes D/A conversion integrator with external capacitor.
19
AD INTIN
Input
A/D integrator input.
Composes D/A conversion integrator with external capacitor.
20
ADCONT
—
A/D control.
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.
22
GND
—
Ground.
23
VCC
Input
Power supply.
24
DACONT
—
D/A control.
To determine adaptive time constant of D/A convertor with ADM system .
25
DAINTIN
Input
D/A Integrator input.
Composes D/A conversion integrator with external capacitor.
26
DAINTOUT
Output
D/A Integrator output.
Composes D/A conversion integrator with external capacitor.
27
LPF2IN1
Input
Low pass filter 2 input 1.
Post-filter after D/A convertor for digital delay.
28
LPF2IN2
Input
Low pass filter 2 input 2.
Post-filter after D/A convertor for digital delay.
29
LPF2OUT
Output
Low pass filter 2 output.
Post-filter after D/A convertor for digital delay.
30
VOLIN
Input
Echo effect/Echo feed back volume input.
To connect capacitor to reduce noise generated at time of volume change.
31
L IN
Input
Lch line input.
32
R IN
Input
Rch line input.
ICK1 VHiM65856SP-1: Mic Amp. (M65856SP) (1/2)
Port Name
Pin No.
Input/Output
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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