Harman Kardon AVR 3550 Service Manual page 8

D/A CONVERTER IC PIN FUNCTION (AK4356VQ) : IC78
No. Pin Name I/O
1 LOUT1- O
2 LOUT1+ O
3 DZFL2 O
4 DZFR1 O
5 DZFL1 O
6 CAD0 I
7 CAD1 I
8 PDN I
9 BICK I
10 MCLK I
11 DVDD -
12 DVSS -
13 SDTI1 I
14 SDTI2 I
15 SDTI3 I
16 LRCK I
17 SMUTE I
18 CCLK I
19 CDTI I
20 CSN I
PIN/FUNCTION
DAC1 Lch Negative Analog Output Pin
DAC1 Lch Positive Analog Output Pin
DAC2 Lch Zero Input Detect Pin
DAC1 Rch Zero Input Detect Pin
DAC1 Lch Zero Input Detect Pin
Chip Address 0 Pin
Chip Address 1 Pin
Power-Down & Reset Pin
When "L", the AK4356 is powered-down and the control registers are reset to
default state. If the state of CAD0-1 changes, then the AK4356 must be reset by PDN.
Audio Serial Data Clock Pin
Master Clock Input Pin
Digital Power Supply Pin, +4.75~+5.25V
Digital Ground Pin
DAC1 Audio Serial Data Input Pin
DAC2 Audio Serial Data Input Pin
DAC3 Audio Serial Data Input Pin
Audio Input Channel Clock Pin
Soft Mute Pin
When this pin goes to "H", soft mute cycle is initialized.
When returning to "L", the output mute releases.
Control Data Clock Pin
Control Data Input Pin
Chip Select Pin
This pin should be held to "H" except for access.
Function
(Note)