AK5371A Datasheet, PDF (3/32 Pages) Asahi Kasei Microsystems – 2ch A/D Converter with USB I/F

ASAHI KASEI
[AK5371A]
No.
Signal Name
1 VD
2 VSS1
3 VSS2
4 NC
5 TESTMODE3
6 XTALOUT
7 XTALIN
8 TESTMODE2
9 LFLT1
10 LFLT2
11 BIASSEL
12 NC
13 NC
14 VCOM
15 MICBIAS
16 MICL
17 AMPL1O
18 AMPL2I
19 AMPL2O
20 NC
21 MICR
22 AMPR1O
23 AMPR2I
24 AMPR2O
Pin/Function
I/O Ana / Dig
PD
PD
PD
--
ID
OA
IA
IA
OA
OA
ID
--
--
OA
OA
IA
OA
IA
OA
--
IA
OA
IA
OA
Description
Digital Power Supply, 3.3V
Digital Ground,0V
Bulk Ground, 0V
No Connection
Please tie down to VSS3 for normal operation.
Crystal Oscillator Output, Connect Crystal Resonator
Crystal Oscillator Input, Connect Crystal Resonator
Please tie down to VSS3 for normal operation.
adPLL loop filter Pin. Connect 51kΩ resistor and 8200pF
capacitor in series externally.
System clock PLL loop filter Pin. Connect 18kΩ resistor and
6800pF capacitor in series externally.
MIC BIAS Select Pin
Select MICBIAS Output
"L": VA(through switch)
“H”: VREF buffer output
No Connection
No Connection
Analog Common Voltage Reference Pin
Voltage Reference Output for the Microphone’s bias voltage
When this chip goes into Suspend mode, this pin goes to Hi-Z.
Left Channel Microphone Input
Left Channel 1^st Amplifier Output Pin
Left Channel 2^nd Amplifier Input Pin
Left Channel 2^nd Amplifier Output Pin
No Connection
Right Channel Microphone Input
Right Channel 1^st Amplifier Output Pin
Right Channel 2^nd Amplifier Input Pin
Right Channel 2^nd Amplifier Output Pin
MS0546-E-00
MS0103-E-00
3
2007/02