Onkyo TX-SR502 Service Manual page 27

IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-17
Q800: AK4588VQ (2/8-Channel Audio CODEC with DIR)-1
BLOCK DIAGRAM
RX0
RX1
RX2
RX3
RX4
Selector
RX5
RX6
RX7
TX0
TX1
AVDD
AVSS
DVDD
DVSS
TVDD
VIN
B,C,U,
VOUT
LIN
RIN
LOUT1
ROUT1
LOUT2
ROUT2
LOUT3
ROUT3
LOUT4
ROUT4
PVSS PVDD R
Clock
Recovery
8 to 3
Input
DAIF
Decoder
DIT
AC-3/MPEG
ADC HPF
ADC HPF
DATT
LPF
DAC
DEM
DATT
DAC
LPF
DEM
DATT
DAC
LPF
DEM
DATT
DAC
LPF
DEM
DATT
DAC
LPF
DEM
DATT
DAC
LPF
DEM
DATT
DAC
LPF
DEM
DATT
DAC
LPF
DEM
XTI XTO
X'tal
Oscillator
DEM
Error &
Q-subcode
STATUS
Detect buffer
Detect
Audio
I/F
MCLK
LRCK
BICK
Format
Converter
SDOUT
SDIN1
SDIN2
SDIN3
SDIN4
TX-SR502/E/8250/HT-R520
MCKO1
Clock
Generator MCKO2
LRCK2
Audio
BICK2
I/F
SDTO2
DAUX2
PDN
I2C
CSN
CCLK
P I/F
CDTO
CDTI
INT0
INT1
MCLK
LRCK1
BICK1
DAUX1
SDTO1
SDTI1
SDTI2
SDTI3
SDTI4