Service manual

CD-DD4500
– 62 –
Figure 62 BLOCK DIAGRAM OF IC
IC505 RH-iX0454AWZZ: 6-CH CODEC IC (AK4527BVQ) (2/2)
Terminal Name
Pin No.
Input/Output
Function
41 DIF0 Input Audio data interface format 0 pin. (in parallel control mode)
CSN Input Chip select pin. (in 3-wire serial control mode)
Connect it to DVDD in I2C bus control mode.
42 DIF1 Input Audio data interface format 1 pin. (in parallel control mode)
SCL/CCLK Input Control data clock pin. (in serial control mode)
I2C = “L”: CCLK (3-wire serial), I2C = “H”: SCL (I2C bus)
43 LOOP0 Input Loopback mode 0 pin. (in parallel control mode)
Enables digital loopback from ADC to all DACs.
SDA/CDTI Input/Output Control data input pin (in serial control mode)
I2C = “L”: CDTI (3-wire serial), I2C = “H”: SDA (I2C bus)
44 LOOP1 Input Loopback mode 1 pin. (Note 1)
Input from SDTI1 to all DACs.
Notes:
1. When P/S = “L”, the register and OR are assigned to SDOS, SMUTE, DFS and LOOP1 pins.
2. When P/S = “L” and DZFE = “L”, the groups 1 and 2 are selectable with DZM2-0 bit.
3. This pin changes to OVF pin when OVFE bit is set to “1” in the serial control mode.
4. Do not float any input pins.
ADC
ADC
HPF
Audio
I/F
HPF
DATTDACLPF
DATTDACLPF
DATTDACLPF
DATTDACLPF
DATTDACLPF
DATTDACLPF
LIN+
LIN-
RIN+
RIN-
LOUT1
ROUT1
LOUT2
ROUT2
LOUT3
ROUT3
AK4527B
MCLK
MCLK
LRCK
LRCK
BICK
BICK
DAUX
SDOS
SDTO
SDTI1
SDTI2
SDTI3
SDIN1
SDIN2
SDIN3
SDOUT
Format
Converter
LRCK
BICK
SDIN
SDOUT1
SDOUT2
SDOUT3
AC3
RX1 RX2 RX3 RX4
XTI
XTO
MCKO
LRCK
BICK
SDTO
DIR
AK4112A