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WM8940CGEFL/V Datasheet(PDF) 6 Page - Wolfson Microelectronics plc

No. de pieza WM8940CGEFL/V
Descripción Electrónicos  Mono CODEC with Speaker Driver
PDF  91 Pages
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Fabricante Electrónico  WOLFSON [Wolfson Microelectronics plc]
Página de inicio  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8940CGEFL/V Datasheet(HTML) 6 Page - Wolfson Microelectronics plc

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WM8940
Production Data
w
PD, Rev 4.3, November 2011
6
PIN DESCRIPTION
PIN
NAME
TYPE
DESCRIPTION
1
MICBIAS
Analogue Output
Microphone bias
2
AVDD
Supply
Analogue supply
3
AGND
Supply
Analogue ground
4
DCVDD
Supply
Digital Supply (Core)
5
DBVDD
Supply
Digital supply (Input/Output)
6
DGND
Supply
Digital ground
7
ADCDAT
Digital Output
ADC digital audio data output
8
DACDAT
Digital Input
DAC digital audio data input
9
FRAME
Digital Input / Output
DAC and ADC sample rate clock or frame synch
10
BCLK
Digital Input / Output
Digital audio port clock
11
MCLK
Digital Input
Master clock input
12
CSB/GPIO
Digital Input / Output
3-Wire control interface chip select or GPIO pin.
13
SCLK
Digital Input
3-Wire control interface clock Input / 2-Wire control interface clock
input
14
SDIN
Digital Input / Output
3-Wire control interface data Input / 2-Wire control interface data input
15
MODE / GPIO
Digital Input
Control interface mode selection pin or GPIO pin.
16
MONOOUT
Analogue Output
Mono output
17
SPKOUTP
Analogue Output
Speaker output positive
18
SPKGND
Supply
Speaker ground
19
SPKOUTN
Analogue Output
Speaker output negative
20
SPKVDD
Supply
Speaker supply
21
AUX
Analogue Input
Auxiliary analogue input
22
VMID
Reference
Decoupling for midrail reference voltage
23
MICN
Analogue Input
Microphone negative input (common mode)
24
MICP
Analogue Input
Microphone positive input
Note:
1.
It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
2.
Refer to the application note WAN_0118 on “Guidelines on How to Use QFN Packages and Create Associated PCB
Footprints”



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