WM8971LGEFL/R(2005) Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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производитель
WM8971LGEFL/R Datasheet PDF : 61 Pages
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Production Data
PIN DESCRIPTION
WM8971L
PIN NO
NAME
TYPE
DESCRIPTION
1
MCLK
Digital Input
Master Clock
2
DCVDD
Supply
Digital Core Supply
3
DBVDD
Supply
Digital Buffer (I/O) Supply
4
DGND
Supply
Digital Ground (return path for both DCVDD and DBVDD)
5
BCLK
Digital Input / Output
Audio Interface Bit Clock
6
DACDAT
Digital Input
DAC Digital Audio Data
7
DACLRC
Digital Input / Output
Audio Interface Left / Right Clock/Clock Out
8
ADCDAT
Digital Output
ADC Digital Audio Data
9
ADCLRC
Digital Input / Output
Audio Interface Left / Right Clock
10
MONOOUT
Analogue Output
Mono Output
11
NC
No Connect
No Connect
12
ROUT1
Analogue Output
Right Output 1 (Line or Headphone)
13
LOUT1
Analogue Output
Left Output 1 (Line or Headphone)
14
HPGND
Supply
Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2)
15
ROUT2
Analogue Output
Right Output 1 (Line or Headphone or Speaker)
16
LOUT2
Analogue Output
Left Output 1 (Line or Headphone or Speaker)
17
HPVDD
Supply
Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2,
MONOUT)
18
AVDD
Supply
Analogue Supply
19
AGND
Supply
Analogue Ground (return path for AVDD)
20
VREF
Analogue Output
Reference Voltage Decoupling Capacitor
21
VMID
Analogue Output
22
MICBIAS
Analogue Output
23
HPDETECT Analogue Input
Midrail Voltage Decoupling Capacitor
Microphone Bias
Headphone Plug-in Detection
24
NC
No Connect
No Connect
25
MIC
Analogue Input
26
NC
No Connect
27
RINPUT1
Analogue Input
Single Ended Microphone Input
No Connect
Right Channel Input 1
28
LINPUT1
Analogue Input
Left Channel Input 1
29
30
31
32
Note:
MODE
CSB
SDIN
SCLK
Digital Input
Digital Input
Digital Input/Output
Digital Input
Control Interface Selection
Chip Select / Device Address Selection
Control Interface Data Input / 2-wire Acknowledge output
Control Interface Clock Input
It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
w
PD Rev 4.1 August 2005
5
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