Onkyo TX-NR801/E Service Manual page 61

IC BLOCK DIAGRAMS AND DESCRIPTIONS
Q103 AK4528VF(24 bit 96 kHz Audio CODEC)
AINL+
AINL-
AINR+
AINR-
VCOM
AOUTL+
AOUTL-
AOUTR+
AOUTR-
VREF
VA
AGND
Control Register I/F
P/S
CSN CCLK CDTI
(DIF) (CKS1) (CKS0)
No. Pin Name I/O
Common Voltage Output Pin,VA/2.
VOM
1 O
Bias voltage of ADC inputs and DAC outputs.
Rch Positive Input Pin.
2 AINR+ I
Rch Negative Input Pin.
3 AINR- I
Lch Positive Input Pin,
4 AINL + I
Lch Negative input Pin.
5 AINL - I
Voltage Reference Input Pin,VA.
Used as a voltage reference by ADC & DAC,VREF is connected
6 VREF I
externally to filtered VA.
7 AGND - Analog Ground Pin
Analog Power Supply Pin,4.75~5.25V.
8 VA -
Parallel/Serial Mode Select Pin.
9 P/S
I
"L":Serial Mode,"H":Parallel Mode
10 MCLK I Master Clock Input Pin
Input/Output Channel Clock Pin
11 LRCK I
Audio Serial Data Clock Pin.
12 BICK I
13 SDTO O Audio Serial Data Output Pin.
Audio Serial Data Input Pin.
14 SDTI I
CDTI I Control Data Input Pin in Serial Mode.
15
Master Clock Select Pin.
CKS0 I
CCLK I
Control Data Clock Pin in Serial Mode.
16
Master Clock Select Pin.
CKS1 I
CSN I Chip Select Pin in Serial Mode.
Digital Audio Interface Select Pin,
17
DIF I
"L":24bit MSB justified,"H":I S compatible.
Double Speed Sampling Mode Pin.
18 DFS I
Power-Down Mode Pin.
19 PDN I
"H":Power up, "L":Power down reset and initialize the control register.
De-emphasis Control Pin
20 DEM0 I
De-emphasis Control Pin
21 DEM1 I
Output Buffer Power Supply Pin,2.7~5.25V
22 VT -
23 VD - Digital Power Supply Pin, 4.75~5.25V.
Digital Ground Pin
24 DGND -
Lch Negative Analog Output Pin.
25 AOUTL- O
Lch Positive Analog Output PIn.
26 AOUTL+ O
27 AOUTR- O Rch Negative Analog Output Pin.
Rch Positive Analog Output PIn.
28 AOUTR+ O
61
ADC
HPF
Audio I/F
Controller
DATT
DAC
SMUTE
Clock Divider
MCLK DFS
Function
2
TX-NR801/E
VD
VT
DGND
PDN
LRCK
BICK
SDTO
SDTI
DEM0
DEM1
Block Diagram