ASAHI KASEI [AK4112B]
MS0078-E-01 2002/7
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PIN/FUNCTION
No. Pin Name I/O Function
1 DVDD - Digital Power Supply Pin, 3.3V
2 DVSS - Digital Ground Pin
3 TVDD - Input Buffer Power Supply Pin, 3.3V or 5V
V O Validity Flag Output Pin in Parallel Mode
4 TX O Transmit channel (through data) Output Pin in Serial Mode
5 XTI I X'tal Input Pin
6 XTO O X'tal Output Pin
7 PDN I Power-Down Mode Pin
When “L”, the AK4112B is powered-down and reset.
8 R - External Resistor Pin
18kΩ +/-1% resistor to AVSS externally.
9 AVDD - Analog Power Supply Pin
10 AVSS - Analog Ground Pin
11 RX1 I Receiver Channel 1
This channel is selected in Parallel Mode or default of Serial Mode.
DIF0 I Audio Data Interface Format 0 Pin in Parallel Mode
12 RX2 I Receiver Channel 2 in Serial Mode
DIF1 I Audio Data Interface Format 1 Pin in Parallel Mode
13 RX3 I Receiver Channel 3 in Serial Mode
DIF2 I Audio Data Interface Format 2 Pin in Parallel Mode
14 RX4 I Receiver Channel 4 in Serial Mode
15 AUTO O Non-PCM Detect Pin
“L”: No detect, “H” : Detect
16 P/S I Parallel/Serial Select Pin
“L”: Serial Mode, “H”: Parallel Mode
17 FS96 O 96kHz Sampling Detect Pin
(RX Mode) “H” : fs=88.2kHz or more, “L” fs=54kHz or less.
(X’tal Mode) “H” : XFS96=1, “L” : XFS96=0.
18 ERF O Unlock & Parity Error Output Pin
“L”: No Error, “H”: Error
19 LRCK I/O Output Channel Clock Pin
20 SDTO O Audio Serial Data Output Pin
21 BICK I/O Audio Serial Data Clock Pin
22 DAUX I Auxiliary Audio Data Input Pin
23 MCK02 O Master Clock #2 Output Pin
24 MCK01 O Master Clock #1 Output Pin
OCKS0 I Output Clock Select 0 Pin in Parallel Mode
25 CSN I Chip Select Pin in Serial Mode
OCKS1 I Output Clock Select 1 Pin in Parallel Mode
26 CCLK I Control Data Clock Pin in Serial Mode
CM1 I Master Clock Operation Mode Pin0 in Parallel Mode
27 CDTI I Control Data Input Pin in Serial Mode
CM0 I Master Clock Operation Mode Pin1 in Parallel Mode
28 CDTO O Control Data Output Pin in Serial Mode
Note 1: All input pins except internal pull-down pins should not be left floating.