ASAHI KASEI [AK4121]
MS0191-E-03 2004/08
- 3 -
PIN/FUNCTION
No. Pin Name I/O Function
1 FILT O Loop-Filter Pin for PLL
2 AVSS I Analog Ground Pin
3 PDN I
Power-Down pin
When “L”, the AK4121 is powered-down and reset.
4 SMUTE I Soft Mute Pin
5 DEM0 I De-emphasis Filter Control Pin #0
6 DEM1 I De-emphasis Filter Control Pin #1
7 ILRCK I L/R Clock Pin for Input
8 IBICK I Audio Serial Data Clock Pin for Input
9 SDTI I Audio Serial Data Input Pin
10 IDIF0 I Input Data Format pin #0
11 IDIF1 I Input Data Format pin #1
12 IDIF2 I Input Data Format pin #2
13 CMODE0 I Clock Mode Select Pin #0
14 CMODE1 I Clock Mode Select Pin #1
15 CMODE2 I Clock Mode Select Pin #2
16 ODIF0 I Output Data Format pin #0
17 ODIF1 I Output Data Format pin #1
18 SDTO O Audio Serial Data Output Pin
19 OBICK I/O Audio Serial Data Clock Pin for Output
20 OLRCK I/O L/R Clock Pin for Output
21 MCLK I Master Clock Pin for Output
22 TVDD I Input Buffer Power Supply Pin, 3.3V or 5V
23 DVSS I Digital Ground Pin
24 VDD I Power Supply Pin, 3.3V
