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WM8976 数据表(PDF) 4 Page - Wolfson Microelectronics plc

部件名 WM8976
功能描述  Low Power CODEC With Speaker Driver
PDF  83 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8976 数据表(HTML) 4 Page - Wolfson Microelectronics plc

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WM8976
Preliminary Technical Data
w
PTD Rev 2.0 February 2005
4
PIN DESCRIPTION
PIN
NAME
TYPE
DESCRIPTION
1
LIP
Analogue input
Left Mic Pre-amp positive input
2
LIN
Analogue input
Left Mic Pre-amp negative input
3
L2/GPIO2
Analogue input
Left channel line input/secondary mic pre-amp positive input/GPIO pin
4
DNC
Do not connect
Leave this pin floating
5
DNC
Do not connect
Leave this pin floating
6
DNC
Do not connect
Leave this pin floating
7
LRC
Digital Input / Output
DAC and ADC Sample Rate Clock
8
BCLK
Digital Input / Output
Digital Audio Port Clock
9
ADCDAT
Digital Output
ADC Digital Audio Data Output
10
DACDAT
Digital Input
DAC Digital Audio Data Input
11
MCLK
Digital Input
Master Clock Input
12
DGND
Supply
Digital ground
13
DCVDD
Supply
Digital core logic supply
14
DBVDD
Supply
Digital buffer (I/O) supply
15
CSB/GPIO1
Digital Input / Output
3-Wire MPU Chip Select / General purpose input/output 1
16
SCLK
Digital Input
3-Wire MPU Clock Input / 2-Wire MPU Clock Input
17
SDIN
Digital Input / Output
3-Wire MPU Data Input / 2-Wire MPU Data Input/Acknowledge
18
MODE
Digital Input
Control Interface Selection
19
AUXL
Analogue input
Left Auxillary input
20
AUXR
Analogue input
Right Auxillary input
21
OUT4
Analogue Output
Buffered midrail Headphone pseudo-ground, or Right line output or MONO
mix output
22
OUT3
Analogue Output
Buffered midrail Headphone pseudo-ground, or Left line output
23
ROUT2
Analogue Output
Second right output, or BTL speaker driver positive output
24
SPKGND
Supply
Speaker ground (feeds speaker amp and OUT3/OUT4)
25
LOUT2
Analogue Output
Second left output, or BTL speaker driver negative output
26
SPKVDD
Supply
Speaker supply (feed speaker amp only)
27
VMID
Reference
Decoupling for ADC and DAC reference voltage
28
AGND
Supply
Analogue ground (feeds ADC and DAC)
29
ROUT1
Analogue Output
Headphone Output Right
30
LOUT1
Analogue Output
Headphone Output Left
31
AVDD
Supply
Analogue supply (feeds ADC and DAC)
32
MICBIAS
Analogue Output
Microphone Bias



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