CD-DVD500 (serv.man18). Function table of IC - Sharp Audio Service Manual (repair manual). Page 14

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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

DATT

DAC

LPF

DATT

DAC

LPF

DATT

DAC

LPF

DATT

DAC

LPF

DATT

DAC

LPF

DATT

DAC

LPF

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