Sony MZ-R55 Service Manual page 116

• IC Block Diagrams
IC301 AK4517-VQ-L
MCLK 1
DIVIDER
LRCK
2
BCLK
3
SDTO 4
SDTI
5
CONTROLLER
DIFO
6
DIFI 7
8
TST3
DCODE0
9
DCODE1 CONTROL
10
REGISTER
DCODE2
11
CS(SCK)
12
13
IC303 AN7535SA-E1
24
MUTE
VCC
RIPPLE
1
IC601 XC6383E401MR
VOUT
1
VDD 2
NC 3
48 47 46 45 44 43 42 41 40 39 38
CLOCK
AUDIO
I/F
DPGA DBB DAC
I/F
14 15 16 17 18 19 20 21 22 23 24
23 22 21 20 19
VREF
VCC
DET.
VREF
2 3 4 5 6
VLX LIMIT
VREF BUFFER
2 STEP PFM CONTROL
OSC 100/180kHz
37
HPF
18 17 16 15 14
VREF
7 8 9 10 11
V OUT
5 LX
IN–1
IN+1
VSS
4 VSS
– 49 –
36 IPGAL
ADCL
35
34 VCMC
ADO
33 VCMR
32 ADCR
IPGAR
31
VRAD
30
LOUT2
29
28 ROUT2
VRDA
27
OPGAL
26
LOUT1
25
13
12
IC302 TLV23621PW
1
8 VDD
2
3
7 OUT2
4
IN–2
6
5 IN+2