wm8595 Wolfson Microelectronics plc, wm8595 Datasheet - Page 78

• Manufacturer Part Number: wm8595
• Description: 24-bit 192khz 2vrms Multi-channel Codec
• Manufacturer: Wolfson Microelectronics plc

WM8595
APPLICATIONS INFORMATION
RECOMMENDED EXTERNAL COMPONENTS
w
Analogue
+3.3V
GND
4.7µF
AC-Coupled
C1
Analogue
Interface
Interface
Control
+9V
1.
2.
3.
Digital
Inputs
Audio
Notes:
4.7µF
C2
AGND and DGND should ideally share a continuous ground plane. Where this is not possible, it
is recommended that AGND and DGND are connected as close to the WM8595 as possible.
Decoupling capacitors shown are very low-ESR, multilayer ceramic capacitors and should be
placed as near to the WM8595 as possible. Equally good audio performance may be obtained
using 0.1μF ceramic capacitors near to the WM8595, with a 10μF electrolytic capacitor nearby.
Note that power up time is a function of the VMID2C resistor string setting and the decoupling
capacitor C7.
The exposed paddle on the bottom of the QFN package should be connected to AGND
Digital
+3.3V
4.7µF
C3
42
18
11
15
16
17
44
46
47
48
45
10
13
14
24
25
26
27
28
29
30
31
32
33
34
35
1
2
4
5
6
7
8
9
AVDD1
AVDD2
DVDD
SHUTDOWN
MUTE
RESET
CIFMODE
CS
SCLK
SDA
SDOUT
MCLK1
LRCLK1
BCLK1
DACDAT1
MCLK2
LRCLK2
BCLK2
DACDAT2
ADCDAT
GPIO1
GPIO2
IN1L
IN1R
IN2L
IN2R
IN3L
IN3R
IN4L
IN4R
IN5L
IN5R
IN6L
IN6R
LINEOUT1R
LINEOUT2R
VREF1GND
VREF2GND
LINEOUT1L
LINEOUT2L
VREF2VDD
VREF1C
VMID1C
VMID2C
AGND1
AGND2
DGND
43
19
12
36
38
37
39
41
40
23
22
21
20
GND
4.7µF
4.7µF
4.7µF
4.7µF
C4
C5
C6
C7
AC-Coupled
Outputs
Analogue
+3.3V
GND
GND
PD, Rev 4.1, April 2010
Production Data
78