WM8950GEFL/RV 데이터 시트보기 (PDF) - Wolfson Microelectronics plc
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WM8950GEFL/RV Datasheet PDF : 52 Pages
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WM8950
PIN DESCRIPTION
PIN NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
NAME
MICBIAS
AVDD
AGND
DCVDD
DBVDD
DGND
ADCDAT
TP
FRAME
BCLK
MCLK
CSB/GPIO
SCLK
SDIN
MODE
DNC
DNC
AGND2
DNC
AVDD2
AUX
VMID
MICN
MICP
Preliminary Technical Data
TYPE
Analogue Output
Supply
Supply
Supply
Supply
Supply
Digital Output
Test Pin
Digital Input / Output
Digital Input / Output
Digital Input
Digital Input / Output
Digital Input
Digital Input / Output
Digital Input
Do not connect
Do not connect
Supply
Do not connect
Supply
Analogue Input
Reference
Analogue Input
Analogue Input
DESCRIPTION
Microphone bias
Analogue supply (feeds ADC)
Analogue ground (feeds ADC)
Digital core supply
Digital buffer (input/output) supply
Digital ground
ADC digital audio data output
Connect to ground
ADC sample rate clock or frame synch
Digital audio bit 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.
Leave this pin floating
Leave this pin floating
Analogue ground
Leave this pin floating
Analogue supply
Auxiliary analogue input
Decoupling for midrail reference voltage
Microphone negative input
Microphone positive input (common mode)
Note:
It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
w
PTD Rev 2.1 June 2005
4
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