AK4665A Datasheet, PDF (4/52 Pages) Asahi Kasei Microsystems – 20-Bit Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4665A]
PIN/FUNCTION
No. Pin Name I/O
Function
L/R Clock Pin
1 LRCK
I
This clock determines which audio channel is currently being output on SDTO pin and
input on SDTI pin.
2 MCLK
I Master Clock Input Pin
3 BICK
I
Serial Bit Clock Pin
This clock is used to latch audio data.
4 SDTI
I Audio Data Input Pin
5 SDTO
O
Audio Data Output Pin
SDTO pin goes to DVSS when PDN pin is “L” or PMADC bit is “0”.
6 TVDD
- Digital I/O Power Supply Pin
7 DVSS
- Digital Ground Pin
8 DVDD
- Digital Power Supply Pin
9 CP
O Positive Charge Pump Capacitor Terminal Pin
10 CN
I Negative Charge Pump Capacitor Terminal Pin
11 HVDD
- Power Supply Pin for Headphone Amplifier and Charge Pump Circuit
12 HVSS
- Ground Pin for Headphone Amplifier and Charge Pump Circuit
13 NVSS
O Negative Voltage Output Pin for Headphone Amplifier and Charge Pump Circuit
14 HPL
O
Lch Headphone Amplifier Output Pin
HPL pin goes to AVSS when PMHPL bit is “0”.
15 HPR
O
Rch Headphone Amplifier Output Pin
HPR pin goes to AVSS when PMHPR bit is “0”.
16 ROUT
O Rch Analog Output Pin
17 LOUT
O Lch Analog Output Pin
18 MIN
I Mono Analog Input Pin
19 RIN
I Rch Analog Input Pin
20 LIN
I Lch Analog Input Pin
21 AINR1
I Rch Analog Input 1 Pin for ADC (LINE Input)
22 AINL1
I Lch Analog Input 1 Pin for ADC (LINE Input)
23 MPWR
O MIC Power Supply Pin
24 MICIN
I MIC Input Pin
25 AVSS
- Analog Ground Pin
26 AVDD
- Analog Power Supply Pin
Common Voltage Output Pin, 1.2V (typ, respect to AVSS)
27 VCOM
O Normally connected to AVSS pin with a 0.1µF ceramic capacitor in parallel with a
2.2µF electrolytic capacitor. VCOM pin goes to AVSS when PMVCM bit = ”0”.
Reference Voltage Output Pin, 2.1V (typ, respect to AVSS)
28 VREF
O
Reference Voltage Output Pin, 2.1V (typ, respect to AVSS)
Normally connected to AVSS pin with a 0.1µF ceramic capacitor in parallel with a
4.7µF electrolytic capacitor. VREF pin goes to AVSS when PMVCM bit = ”0”.
Power-down Pin
29 PDN
I
When “L”, the AK4665A is in power-down mode and is held in reset. The AK4665A
should always be reset upon power-up.
30 CSN
I Control Data Chip Select Pin
31 CCLK
I Control Clock Input Pin
32 CDTI
I Control Data Input Pin
Note 1. Do not allow digital input pins except analog input pins (MICIN, AINL1, AINR1, LIN, RIN and MIN pins) to
float.
MS0440-E-01
-4-
2006/05