WM8734 데이터 시트보기 (PDF) - Wolfson Microelectronics plc
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WM8734 Datasheet PDF : 46 Pages
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WM8734
Production Data
PIN DESCRIPTION - QFN
PIN
NAME
TYPE
DESCRIPTION
1
MCLK
Digital Input
Master Clock Input (MCLK)
2
NC
Do Not Connect Test Pin, must be left unconnected
3
DCVDD
Supply
Digital Core VDD
4
DGND
Ground
Digital GND
5
DBVDD
Supply
Digital Buffers VDD
6
NC
Do Not Connect Test Pin, must be left unconnected
7
BCLK
Digital Input/Output Digital Audio Bit Clock, Pull Down, (see Note 1)
8
DACDAT
Digital Input
DAC Digital Audio Data Input
9
DACLRC Digital Input/Output DAC Sample Rate Left/Right Clock. Pull Down (see Note 1)
10
ADCDAT
Digital Output
ADC Digital Audio Data Output
11
ADCLRC Digital Input/Output ADC Sample Rate Left/Right Clock, Pull Down (see Note 1)
12
NC
Do Not Connect Test Pin, must be left unconnected
13
NC
Do Not Connect Test Pin, must be left unconnected
14
NC
Do Not Connect Test Pin, must be left unconnected
15
NC
Do Not Connect Test Pin, must be left unconnected
16
LOUT
Analogue Output Left Channel Line Output
17
ROUT
Analogue Output Right Channel Line Output
18
AVDD
Supply
Analogue VDD
19
AGND
Ground
Analogue GND
20
VMID
Analogue Output Mid-rail reference decoupling point
21
NC
Do Not Connect Test Pin, must be left unconnected
22
NC
Do Not Connect Test Pin, must be left unconnected
23
RLINEIN
Analogue Input Right Channel Line Input (AC coupled)
24
LLINEIN
Analogue Input Left Channel Line Input (AC coupled)
25
MODE
Digital Input
Control Interface Selection, Pull Up (see Note 1)
26
CSB
Digital Input
3-Wire MPU Chip Select / 2-Wire MPU interface address selection, active low,
Pull up (see Note 1)
27
SDIN
Digital Input/Output 3-Wire MPU Data Input / 2-Wire MPU Data Input
28
SCLK
Digital Input
3-Wire MPU Clock Input / 2-Wire MPU Clock Input
Note: It is recommended that the QFN ground paddle is connected to analogue ground on the application PCB.
w
PD Rev 4.1 November 2006
6
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