WM8940GEFL/V Wolfson Microelectronics, WM8940GEFL/V Datasheet - Page 6

• Manufacturer Part Number: WM8940GEFL/V
• Description: Audio CODECs Mono CODEC with Speaker Driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8940GEFL/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

WM8940
1.
2.
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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.
Refer to the application note WAN_0118 on “Guidelines on How to Use QFN Packages and Create Associated PCB
Footprints”
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
MODE / GPIO
MONOOUT
CSB/GPIO
SPKOUTP
SPKOUTN
SPKGND
MICBIAS
ADCDAT
DACDAT
SPKVDD
DCVDD
DBVDD
FRAME
DGND
AVDD
AGND
MCLK
BCLK
SCLK
VMID
MICN
MICP
SDIN
NAME
AUX
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
Analogue ground
Digital Supply (Core)
Digital supply (Input/Output)
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 control interface chip select or GPIO pin.
3-Wire control interface clock Input / 2-Wire control interface clock
input
3-Wire control interface data Input / 2-Wire control interface data input
Control interface mode selection pin or GPIO pin.
Mono output
Speaker output positive
Speaker ground
Speaker output negative
Speaker supply
Auxiliary analogue input
Decoupling for midrail reference voltage
Microphone negative input (common mode)
Microphone positive input
DESCRIPTION
PD, Rev 4.2, April 2008
Production Data
6