WM8786
Pre-Production
PIN DESCRIPTION
PIN
1
NAME
AINL+
TYPE
Analogue Input
Analogue Input
Analogue Reference
Supply
DESCRIPTION
Left Channel Positive Input
2
AINL-
Left Channel Negative Input
Negative Reference Connection
Analogue Supply
3
VREFGND
AVDD
4
5
AGND
Supply
Analogue Ground (return path for AVDD)
Audio Interface Left / Right Clock
ADC Digital Audio Data
6
LRCLK
DOUT
Digital Input / Output
Digital Output
Digital Input / Output
Digital Input
7
8
BCLK
Audio Interface Bit Clock
Master Clock
9
MCLK
10
MS0
Digital Input
Master/Slave Control
(pull down pad)
0 = Slave Mode Audio Interface
1 = Master Mode Audio Interface @ 256fs (or @128fs in quad rate)
Audio Format Selection
11
12
AUDIOF0
AUDIOF1
Digital Input
Digital Input
00 = 24 bit right justified audio data format
01 = 24 bit left audio data format
10 = I2S audio data format
11 = DSP audio data format
Oversampling Rate Control
13
14
OSR0
(pull down pad)
OSR1
Digital Input
Digital Input
00 = Single rate (48kHz)
01 = Dual rate (96kHz)
10 = Quad rate (192kHz)
11 = Not valid
15
16
17
18
19
20
DVDD
DGND
VMID
Supply
Supply
Digital Supply
Digital Ground (return path for DVDD)
Midrail Voltage Decoupling Capacitor
Reference Voltage Decoupling Capacitor
Right Channel Negative Input
Right Channel Positive Input
Analogue Output
Analogue Reference
Analogue Input
Analogue Input
VREF
AINR-
AINR+
PP Rev 3.0 December 2005
4
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
