Ic Pin Function Description - Sony STR-DE725 Service Manual

3-23.

IC PIN FUNCTION DESCRIPTION

IC1103 AK4526 (DIGITAL BOARD)
Pin No. Pin Name I/O
1 SDOS
2 MCLK
3 S/M
4 BCLK I/O
5 LRCK I/O
6 SDT11
7 SDT12
8 SDT13
9 SDTO
10 DAUX
11 DFS
12 – 13 DEM1 – DEM0
14 MCKO
15 D. 5V
16 D. GND
17 PD
18 TEST
19 ICKS1
20 ICKS0
21 CAD1
22 CAD0
23 LOUT3
24 ROUT3
25 LOUT2
26 ROUT2
27 LOUT1
28 ROUT1
29 LIN–
30 LIN+
SDTO source select pin
I "L": internal ADC output, "H": DAUX input
ORed with serial control register if P/S = "L" (Connected to Ground)
I MCKO clock frequency select pin
"L": MCLK, "H": MCLK/2. ORed with serial control register if P/S = "L" (Connected to Ground)
Audio data master/slave mode select pin
I
"L": slave mode, "H": master mode (Connected to Ground)
Audio serial data clock pin
Input/output channel clock pin
I DAC1 audio serial data input pin
I DAC2 audio serial data input pin
I DAC3 audio serial data input pin
O Audio serial data output pin
I AUX audio serial data input pin (Connected to Ground)
Double speed sampling mode pin
I "L": normal speed, "H": double speed
ORed with serial control register if P/S = "L" (Connected to Ground)
De-emphasis pin
I
ORed with serial control register if P/S = "L" (Connected to Ground)
O Master clock output pin (Not used)
— Digital power supply pin
— Digital ground pin
Power-down & reset pin
I When "L", the AK4526 is powered-down and the control registers are reset to default state.
If the state of P/S, M/S, CAD0-1 changes, then the AK4526 must be reset by PD.
X'tal oscillator select/test mode pin
"H": X'tal oscillator selected
I
"L": External clock source selected
"NC": If pin is floating then test mode is enabled. (Connected to Ground)
I
Input clock select 1 pin (Connected to Ground)
I Input clock select 0 pin (Connected to Ground)
Chip address pin
I
Used during the serial control mode. (Connected to Ground)
Chip address pin
I
Used during the serial control mode. (Connected to Ground)
O Lch #3 analog output pin
O Rch #3 analog output pin
O
Lch #2 analog output pin
O Rch #2 analog output pin
O Lch #1 analog output pin
O Rch #1 analog output pin
I Lch analog negative input pin
I Lch analog positive input pin
Description
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