Sharp CD-BP2000W Service Manual page 54

CD-BP2000W/210W/2000A/BK2000W/210W
ICK1 VHiM65856SP-1: Mic Amp. (M65856SP) (2/2)
Pin No. Port Name
33* KEYCONIN
34* SOURCEOUT
35 ROUT
36 LOUT
37 VCFIL
38* PS1
39* PS2
40 LATCH
41 CLOCK
42 DATA
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
42 41 40
µ-COM I/F
MCLK
1 2 3
Input/Output
Input Monaural input for external KEYCONTROL IC
Input/Output interface terminal for external KEYCONTROL IC
Output Monaural input for external KEYCONTROL IC
Input/Output interface terminal for external KEYCONTROL IC
Output Rch mixing output
Output Lch mixing output
— Vocal cut filter
Processes frequencies lower then the vocal band
Input Phase shift input 1
Determines a constant at time of phase shift
Input Phase shift input 2
Determines a constant at time of phase shift
Input Latch input via serial bus
Input Clock input via serial bus
Input Data input via serial bus
39 38 37 36 35
PHASE
SHIFTER
SURROUND
MIC SW
MIC
VOL
ALC
4 5 6 7 8
Figure 54 BLOCK DIAGRAM OF IC
34 33 32 31 30
(L,R)/2 L R 3TEREO
ECHO
VOL
MIC
VOL
ALC
9 10 11 12 13 14
– 54 –
Function
29 28 27 26 25 24
LPF D/A
16kbit
ECHO
SRAM
F.BVOL
MAIN LOGIC
LPF ND
15 16 17 18 19
23 22
VCC GND
1/ZVcc
20 21