WM8976GEFL/V Wolfson Microelectronics, WM8976GEFL/V Datasheet - Page 5

• Manufacturer Part Number: WM8976GEFL/V
• Description: Audio CODECs Mono ADC Stereo DAC with Spkr
• Manufacturer: Wolfson Microelectronics

Specifications of WM8976GEFL/V

• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN DESCRIPTION
Production Data
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”
w
PIN
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
6
7
8
9
4
5
CSB/GPIO1
L2/GPIO2
SPKGND
ADCDAT
DACDAT
SPKVDD
MICBIAS
DCVDD
DBVDD
ROUT2
ROUT1
LOUT2
LOUT1
MODE
DGND
AGND
MCLK
AUXR
AVDD
NAME
BCLK
SCLK
AUXL
OUT4
OUT3
VMID
SDIN
DNC
DNC
DNC
LRC
LIP
LIN
Digital Input / Output
Digital Input / Output
Digital Input / Output
Digital Input / Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue input
Analogue input
Analogue input
Do not connect
Do not connect
Do not connect
Analogue input
Analogue input
Digital Output
Digital Input
Digital Input
Digital Input
Digital Input
Reference
Supply
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
Mic Pre-amp negative input
DAC and ADC Sample Rate Clock
ADC Digital Audio Data Output
DAC Digital Audio Data Input
3-Wire Control Interface Data Input / 2-Wire Control Interface Data Input
Left Auxiliary input
Right Auxiliary input
Decoupling for ADC and DAC reference voltage
Mic Pre-amp positive input
Line input/secondary mic pre-amp positive input/GPIO2 pin
Leave this pin floating
Leave this pin floating
Leave this pin floating
Digital Audio Port Clock
Master Clock Input
Digital ground
Digital core logic supply
Digital buffer (I/O) supply
3-Wire Control Interface Chip Select / GPIO1 pin
3-Wire Control Interface Clock Input / 2-Wire Control Interface Clock
Input
Control Interface Selection
Buffered midrail Headphone pseudo-ground, or Right line output or MONO
mix output
Buffered midrail Headphone pseudo-ground, or Left line output
Second right output, or BTL speaker driver positive output
Speaker ground (feeds speaker amp and OUT3/OUT4)
Second left output, or BTL speaker driver negative output
Speaker supply (feed speaker amp only)
Analogue ground (feeds ADC and DAC)
Headphone or Line Output Right
Headphone or Line Output Left
Analogue supply (feeds ADC and DAC)
Microphone Bias
DESCRIPTION
PD Rev 4.4 July 2009
WM8976
5