Production Data
WM8711BL
RECOMMENDED EXTERNAL COMPONENTS
3.3V
3.3V
DBVDD
DGND
+
AVDD
AGND
+
10µ
0.1
µ
0.1 F
µ
F
F
µ
10
F
µ
µ
10 F 0.1 F
3.3V
+
1.5V - 3.3V
+
HPVDD
HPGND
DCVDD
LLINEIN
µ
10 F
0.1µ
F
+
Ω
5.6k
µ
1 F
+
+
Ω
100
VREF
VREF
LOUT
ROUT
+
Ω
5.6k
µ
1 F
Ω
47k
RLINEIN
µ
1 F
100Ω
47kΩ
WM8711BL
DAC
µ
1 F
DACLRC
DACDAT
BCLK
Audio Serial Data
I/F
+
LHPOUT
RHPOUT
µ
220 F
47k
Ω
3.3V
3-wire Interface
2-wire Interface
Ω
10k
+
MODE
CSB
SDIN
SCLK
DGND
3-wire or 2-
wire
MPU Interface
µ
220 F
47kΩ
CLKOUT
VMID
Ω
100
+
µ
0.1 F
µ
F
10
*GND_PADDLE
XTI/MCLK XTO
X1
Cp
Cp
Note
1. Where possible, it is recommended that NPO or COG type capacitors should be used for best performance.
2. *Ground Paddle in centre of QFN package back side.
3. X1 should have a CL of around 12pF and Cp should be around 15pF.
Figure 36 External Components Diagram
PD, Rev 4.1, April 2007
41
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
