WM8971L Wolfson Microelectronics Ltd., WM8971L Datasheet - Page 5

• Manufacturer Part Number: WM8971L
• Description: Stereo Codec for Portable Audio Applications
• Manufacturer: Wolfson Microelectronics Ltd.

Production Data
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PIN DESCRIPTION
Note:
It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
PIN NO
32
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
HPDETECT
MONOOUT
RINPUT1
DACDAT
DACLRC
ADCDAT
ADCLRC
MICBIAS
LINPUT1
HPGND
DCVDD
DBVDD
HPVDD
ROUT1
ROUT2
LOUT1
LOUT2
MODE
DGND
AGND
MCLK
AVDD
NAME
BCLK
VREF
SCLK
VMID
SDIN
CSB
MIC
NC
NC
NC
Digital Input
Supply
Supply
Supply
Digital Input / Output
Digital Input
Digital Input / Output
Digital Output
Digital Input / Output
Analogue Output
No Connect
Analogue Output
Analogue Output
Supply
Analogue Output
Analogue Output
Supply
Supply
Supply
Analogue Output
Analogue Output
Analogue Output
Analogue Input
No Connect
Analogue Input
No Connect
Analogue Input
Analogue Input
Digital Input
Digital Input
Digital Input/Output
Digital Input
TYPE
Master Clock
Digital Core Supply
Digital Buffer (I/O) Supply
Digital Ground (return path for both DCVDD and DBVDD)
Audio Interface Bit Clock
DAC Digital Audio Data
Audio Interface Left / Right Clock/Clock Out
ADC Digital Audio Data
Audio Interface Left / Right Clock
Mono Output
No Connect
Right Output 1 (Line or Headphone)
Left Output 1 (Line or Headphone)
Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2)
Right Output 1 (Line or Headphone or Speaker)
Left Output 1 (Line or Headphone or Speaker)
Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2,
MONOUT)
Analogue Supply
Analogue Ground (return path for AVDD)
Reference Voltage Decoupling Capacitor
Midrail Voltage Decoupling Capacitor
Microphone Bias
Headphone Plug-in Detection
No Connect
Single Ended Microphone Input
No Connect
Right Channel Input 1
Left Channel Input 1
Control Interface Selection
Chip Select / Device Address Selection
Control Interface Data Input / 2-wire Acknowledge output
Control Interface Clock Input
DESCRIPTION
PD Rev 4.1 August 2005
WM8971L
5