AK4569 Datasheet, PDF (4/45 Pages) Asahi Kasei Microsystems – 20-Bit Stereo CODEC with IPGA & HP-AMP

ASAHI KASEI
[AK4569]
PIN/FUNCTION
No. Pin Name
1 PDN
2 CSN
3 CCLK
4 CDTI
5 LRCK
6 MCLK
7 BICK
8 SDTI
9 SDTO
10 DVDD
11 DVSS
12 HVSS
13 HVDD
14 HPR
15 HPL
16 MUTET
17 MOUT
18 MIN
19 RIN
20 LIN
21 VREF
22 VCOM
23 AVSS
24 AVDD
25 AINR2
26 AINL2
27 AINR1
28 AINL1
I/O
Function
Power-down Pin
I
When “L”, the AK4569 is in power-down mode and is held in reset. The AK4569
should always be reset upon power-up.
I Control Data Chip Select Pin
I Control Clock Input Pin
I Control Data Input Pin
L/R Clock Pin
I
This clock determines which audio channel is currently being output on SDTO pin and
input on SDTI pin.
I Master Clock Input Pin
I
Serial Bit Clock Pin
This clock is used to latch audio data.
I Audio Data Input Pin
O
Audio Data Output Pin
SDTO pin goes to DVSS when PDN pin is “L”.
- Digital Power Supply Pin
- Digital Ground Pin
- Ground Pin for Headphone Amplifier
- Power Supply Pin for Headphone Amplifier
O
Rch Headphone Amplifier Output Pin
HPR pin goes to HVSS when PDN pin is “L”.
O
Lch Headphone Amplifier Output Pin
HPL pin goes to HVSS when PDN pin is “L”.
Mute Time Constant Control Pin
O
A capacitor for mute time constant should be connected between MUTET pin and
HVSS pin. MUTET pin goes to HVSS when PDN pin is “L”.
O
Mono Analog Output Pin
MOUT pin goes to Hi-Z when PDN pin is “L”.
I Mono Analog Input Pin
I Rch Analog Input Pin
I Lch Analog Input Pin
Reference Voltage Output Pin, 2.1V (typ, respect to AVSS)
O
Normally connected to AVSS pin with 0.1µF ceramic capacitor in parallel with a 4.7µF
electrolytic capacitor. VREF pin goes to AVSS when PDN pin is “L”.
Common Voltage Output Pin, 1.25V (typ, respect to AVSS)
O Normally connected to AVSS pin with 0.1µF ceramic capacitor in parallel with a 2.2µF
electrolytic capacitor. VCOM pin goes to AVSS when PDN pin is “L”.
- Analog Ground Pin
- Analog Power Supply Pin
I Rch Analog Input 2 Pin for ADC (MIC Input)
I Lch Analog Input 2 Pin for ADC (MIC Input)
I Rch Analog Input 1 Pin for ADC (LINE Input)
I Lch Analog Input 1 Pin for ADC (LINE Input)
Note: No digital input pins must be left floating.
MS0292-E-01
-4-
2005/07