WM8737L
Production Data
PIN DESCRIPTION
PIN NO
1
NAME
NC
TYPE
No Connect
DESCRIPTION
No Internal Connection
Digital Input
Control Interface Clock Input
Digital Buffer (I/O) Supply
Digital Core Supply
2
SCLK
Supply
3
DBVDD
DCVDD
DGND
Supply
4
Supply
Digital Ground (return path for both DCVDD and DBVDD)
No Internal Connection
5
No Connect
6
NC
Digital Input
Master Clock
7
MCLK
Digital Input / Output
Digital Output
Digital Input / Output
Digital Input
Audio Interface Bit Clock
8
BCLK
ADC Digital Audio Data
9
ADCDAT
ADCLRC
MODE
AGND
Audio Interface Left / Right Clock
Control Interface Selection
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Supply
Analogue Ground (return path for both AVDD and MVDD)
Microphone Bias
Analogue Output
Supply
MICBIAS
MVDD
Microphone Bias and Microphone Pre-amplifier Positive Supply
Analogue Positive Supply
Supply
AVDD
Analogue Input
Analogue Output
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Output
Analogue Input
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Supply
Right Channel DC Blocking Capacitor
Right Channel DC Blocking Capacitor
Right Channel Input 3
RACIN
RACOUT
RINPUT3
RINPUT2
RINPUT1
LINPUT1
LINPUT2
LINPUT3
LACOUT
LACIN
Right Channel Input 2
Right Channel Input 1
Left Channel Input 1
Left Channel Input 2
Left Channel Input 3
Left Channel DC Blocking Capacitor
Left Channel DC Blocking Capacitor
Midrail Voltage Decoupling Capacitor
Reference Voltage Decoupling Capacitor
Positive Reference Decoupling Connection
Negative Reference Decoupling Connection
Analogue Ground (return path for both AVDD and MVDD)
Chip Select / Device Address Selection
Control Interface Data Port
VMID
VREF
VREFP
VREFN
AGND
Digital Input
CSB
Digital Input / Output
SDIN
PD, Rev 4.4, January 2012
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
