Sharp CD-K7000W Service Manual page 52

CD-K7000W/C7000W,CP-C7000
ICK1 VHiM65856SP-1: Mic Amp. (M65856SP) (1/2)
Pin No. Port Name Input/Output
1 MIC SW
2 MCLKCONT
3 VALC
4 MIC1IN
5 ALC1
6 MIC1NFIN
7 MIC1OUT
8 MIC1VOLIN
9 MIC2IN
10 ALC2
11 MIC2NFIN
12 MIC2OUT
13 MIC2VOLIN
14 MICOUT
15 LPF1IN1
16 LPF1IN2
17 LPF1OUT
18 ADINTOUT
19 ADINTIN
20 ADCONT
21 REF
22 GND
23 VCC
24 DACONT
25 DAINTIN
26 DAINTOUT
27 LPF2IN1
28 LPF2IN2
29 LPF2OUT
30 VOLIN
31 LIN
32 RIN
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Input Microphone SW
— Clock Control
Controls built-in clock generation circuit with external R
— ALC operating voltage setting terminal
To set ALC operating voltage according to applied voltage
Input Microphone 1 input
To connect MIC1
— ALC1 control
To connect ALC1 attack/recovery time setting capacitor
Input Microphone 1 negative feedback input
To connect low cut-off frequency of MIC1 amplifier setting capacitor
Output Microphone 1 output
Input Microphone 1 volume input
To connect capacitor to reduce noise generated at time of volume change
Input Microphone 2 input
To connect MIC2
— ALC2 control
To connect ALC2 attack/recovery time setting capacitor
Input Microphone 2 negative feedback input
To connect low cut-off frequency of MIC2 amplifier setting capacitor
Output Microphone 2 output
Input Microphone 2 volume input
To connect capacitor to reduce noise generated at time of volume change
Output Microphone output
Mixing output of MIC1 and MIC2
Input Low pass filter 1 input 1
Pre-filter before A/D convertor for digital delay
Input Low pass filter 1 input 2
Pre-filter before A/D convertor for digital delay
Output Low pass filter 1 output
Pre-filter before A/D convertor for digital delay
Output A/D integrator output
Composes D/A conversion integrator with external capacitor
Input A/D integrator input
Composes D/A conversion integrator with external capacitor
— A/D control
To determine adaptive time constant of A/D convertor with ADM system
— Reference power output
To connect 1/2 Vcc output and filter capacitor
— Ground
— Power supply
— D/A control
To determine adaptive time constant of D/A convertor with ADM system
Input D/A Integrator input
Composes D/A conversion integrator with external capacitor
Output D/A Integrator output
Composes D/A conversion integrator with external capacitor
Input Low pass filter 2 input 1
Post-filter after D/A convertor for digital delay
Input Low pass filter 2 input 2
Post-filter after D/A convertor for digital delay
Output Low pass filter 2 output
Post-filter after D/A convertor for digital delay
Input Echo effect/Echo feed back volume input
To connect capacitor to reduce noise generated at time of volume change
Input Lch line input
Input Rch line input
Function
L: MIC OFF, H: MIC ON
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