WM8974GEFL/V Wolfson Microelectronics, WM8974GEFL/V Datasheet - Page 4

• Manufacturer Part Number: WM8974GEFL/V
• Description: Audio CODECs Mono Codec with Spkr
• Manufacturer: Wolfson Microelectronics

Specifications of WM8974GEFL/V

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-24
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8974
PIN DESCRIPTION
Note:
It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
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PIN NO
16
17
18
19
20
21
22
23
24
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
MONOOUT
CSB/GPIO
SPKOUTP
SPKOUTN
SPKGND
MICBIAS
ADCDAT
DACDAT
SPKVDD
DCVDD
DBVDD
FRAME
MODE
AGND
DGND
AVDD
MCLK
BCLK
SCLK
VMID
MICN
MICP
SDIN
AUX
NAME
Analogue Output
Supply
Supply
Supply
Supply
Supply
Digital Output
Digital Input
Digital Input / Output
Digital Input / Output
Digital Input
Digital Input / Output
Digital Input
Digital Input / Output
Digital Input
Analogue Output
Analogue Output
Supply
Analogue Output
Supply
Analogue Input
Reference
Analogue Input
Analogue Input
TYPE
Microphone bias
Analogue supply (feeds ADC and DAC)
Analogue ground (feeds ADC and DAC)
Digital core supply
Digital buffer (input/output) supply
Digital ground
ADC digital audio data output
DAC digital audio data input
DAC and ADC sample rate clock or frame synch
Digital audio port clock
Master clock input
3-Wire MPU chip select or general purpose input/output pin.
3-Wire MPU clock Input / 2-Wire MPU Clock Input
3-Wire MPU data Input / 2-Wire MPU Data Input
Control interface mode selection pin.
Mono output
Speaker output positive
Speaker ground (feeds speaker and mono output amps only)
Speaker output Negative
Speaker supply (feeds speaker and mono output amps only)
Auxiliary analogue input
Decoupling for midrail reference voltage
Microphone negative input
Microphone positive input (common mode)
DESCRIPTION
PD, Rev 4.5, September 2008
Production Data
4