18
VSX-LX52
1
2
3
4
A
B
C
D
E
F
1
2
3
4
4.2 BLOCK DIAGRAM FOR DIGITAL AUDIO BLOCK
Optical in(
3
)
JA104
Optical out
JA106
Block Diagram (Digital Audio part)
I2S MCLK
I2S BCLK, LRCLK
I2S DATA (uncompressed)
I2S DATA (compressed(Include dts HD High Resolution Audio, dts HD LBR, Dolby Digital Plus) or 2ch(under 4
8
kHz for HDMI))
I2S or DSD DATA (Signal from HDMI (dts HD Master Audio) (Dolby TrueHD) (SACD) (LPCM Multi)(for over
88
.2 kHz of PCM or LPCM))
S/PDIF, Operation Clock,etc
Analog Audio Signal
Buffer
IC1251 7PAU04
Control/Memory Bus Line
X'tal for USB
X1250
Analog in(L/R)
4
8
.0MHz
ASS7099-
USB/iPod
Audio
R202, R204, R206, R20
8
Coaxial in(
2
)
Buffer
IC215
7SH0
8
USB/iPod
Audio
Zone2
USB
R466, R46
8
R466, R46
8
R462, R464,
R462, R464,
Analog
out(L/R)
S
W
IC363
7
W
H126(1/2)
S
W
IC363
7
W
H126(2/2)
IC301
Channel Assigment Difference
Pin
N
o.
SACD Signal
OTHER Signal
8
5
Data(C)
N
/A
8
6
Data(LFE)
N
/A
97
Data(FL)
Data(FL,FR)
9
8
Data(FR)
Data(SL,SR)
99
Data(SL)
Data(C,LFE)
Data(SR)
Data(SBL,SBR)
Control I
N
/OUT
Control I
N
/OUT
HDMI S/PDIF in(1)
100
GATE ARRAY
IC1300
PE700
8
A
MAI
N
LSI
IC
8
00
EMMA
UPD612
8
3F1-407LU2A
From HDMI Block
DIR/DIT
IC101
HDMI
AUDIO S
W
IC1566
V
HC541
S
W
IC221
74
V
HC157
S
W
IC231
74
V
HC157
ADC
IC501
AK535
8
AET
DAC
DAC
IC521
IC521
AK43
88
ET
AK43
88
ET
IC452
74LCX541
S
W
IC241
74
V
HC125
Buffer
IC1563
7
W
H157
M24
E1
8
C19, D20
E21
141,142
140
JA101
JA103
JA105
C
N
501
#3, #1
C
N
501
#23, #21
1, 144
2
N
1
AK411
8
