WM8941 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
Número de pieza
componentes Descripción
Fabricante
WM8941 Datasheet PDF : 96 Pages
| |||
WM8941
PIN DESCRIPTION
PIN
NAME
TYPE
1
MICBIAS Analogue Output
2
AVDD
Supply
3
AGND
Supply
4
DCVDD Supply
5
DBVDD Supply
6
DGND
Supply
7
ADCDAT Digital Output
8
DACDAT Digital Input
9
FRAME Digital Input / Output
10
BCLK
Digital Input / Output
11
MCLK
Digital Input
12
CSB/GPIO Digital Input / Output
13
MODE/GPIO Digital Input
14
SCLK
Digital Input
15
SDIN
Digital Input / Output
16
VBVDD
Supply
17
VBOUT
Analogue Output
18
VBREF
Analogue Output
19
VBIN
Analogue Input
20
MONOOUT Analogue Output
21
SPKOUTP Analogue Output
22
SPKGND Supply
23
SPKOUTN Analogue Output
24
SPKVDD Supply
25
AUX
Analogue Input
26
VMID
Reference
27
MICN
Analogue Input
28
MICP
Analogue Input
Pre Production
DESCRIPTION
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
Control interface mode selection 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
Vide buffer supply
Video buffer TV output
Video buffer reference pin
Video buffer input
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
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”
w
PP, Rev 3.3, December 2007
6
Share Link: 