wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 6

• Manufacturer Part Number: wm8961
• Description: Ultra-low Power Stereo Codec With 1w Stereo Class D Speaker Drivers And Ground Referenced Headphone Drivers
• Manufacturer: Wolfson Microelectronics plc

PIN DESCRIPTION
w
WM8961
Note:
It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
Refer to the application note WAN_0118 on “Guidelines on How to Use QFN Packages and Create Associated PCB Footprints”
PIN NO
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
GND_PADDLE
SPKGND2
SPKGND1
SPKVDD2
SPKVDD1
MICBIAS
DACDAT
ADCDAT
SPK_RN
MICVDD
SPK_RP
SPK_LN
SPK_LP
CPGND
RINPUT
CPVDD
LINPUT
DGND
AGND
VNEG
DVDD
MCLK
AVDD
VPOS
NAME
HP_R
CFB2
CFB1
BCLK
SCLK
VMID
HP_L
SDIN
LRC
Supply
Supply
Digital Input / Output
Digital Input / Output
Digital Input
Digital Input
Digital Output
Digital Input
Digital Input/Output
Analogue Output
Supply
Supply
Analogue Output
Analogue Output
Supply
Analogue Output
Supply
Analogue Output
Supply
Supply
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Supply
Supply
Analogue Output
Analogue Input
Analogue Input
Supply
TYPE
Charge pump negative supply decoupling (powers HP_L,
HP_R)
Charge pump fly-back capacitor pin
Charge pump fly-back capacitor pin
Charge pump ground (Return path for CPVDD)
Charge pump power supply
Microphone bias
Right channel input
Left channel input
Microphone bias amp supply
Digital core and buffer (I/O) supply
Digital ground
Audio interface bit clock
Audio interface left / right clock
DAC digital audio data
Master clock
ADC digital audio data
Control interface clock input
Control interface data input / 2-wire acknowledge output
Right speaker negative output
Ground for right speaker drivers
Supply for right speaker drivers
Right speaker positive output
Left speaker negative output
Ground for left speaker drivers
Left speaker positive output
Supply for left speaker drivers
Mid-rail voltage =AVDD/2 (requires decoupling capacitor)
Analogue ground (Return path for AVDD)
Analogue supply
Right output (Line or headphone)
Left output (Line or headphone)
Charge pump positive supply decoupling (powers HP_L,
HP_R)
Die Paddle (Note 1)
DESCRIPTION
PP, August 2009, Rev 3.1
Pre-Production
6