eKA8564A
USB Audio Controller
6 Pin Assignment
Symbol
Pin No.
I/O
O
O
O
I
Function
BCLK
1
2
BCLK for I2S interface
LRCLK for I2S interface
LRCLK
SDATA
3
I2S interface for FL, FR output
BCLK for I2S interface
LRCLK for I2S interface
I2S interface for FL, FR input
Play LED
I_BCLK
4
I_LRCLK
I_SDATA
Play_LED
Power_LED
REC_Mute_LED
SPK_Mute_LED
MuteREC
Vol-
5
I
6
I
7
O
O
O
O
I
8
Power LED
9
Record Mute LED
10
11
12
13
14
15
16
17
18
Speaker Mute LED
Mute record button
I
Volume down button
Vol+
I
Volume up button
MuteSPK
SPT
I
Mute Speaker button
Media Key: Scan previous track button
Media Key: Scan next track button
Media Key: Stop button
Media Key: Play/Pause button
I
SNT
I
Stop
I
PlayPause
I
Record select pin.
1 : I2S record
RECORD_SEL
19
I
0 : ADC record
An internal pull-low resistor is connected to DGND.
OSCO
OSCI
20
21
O
I
Crystal output
Crystal input
Test mode select pin
Test = 0, enter normal mode
Test
22
I
Test = 1, enter test mode
An internal pull-low resistor is connected to DGND.
PLLC
VAD
23
24
25
26
27
28
29
30
I
External capacitor for PLL
ADC analog power supply pin
A/D and PLL ground pin
Analog power supply pin
Power supply for external MIC
Microphone analog input pin
Bandgap reference output
MIC ground pin
PWR
AGND3
VA
−
PWR
VMIC
MIC_IN
Vref
O
I
O
−
AGND2
4 •
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
