WM8608 Datasheet, PDF (5/54 Pages) Wolfson Microelectronics plc – 5 TO 7.1 CHANNEL PWM CONTROLLER

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WM8608
PIN DESCRIPTION
PIN
NAME
TYPE
DESCRIPTION
1
XOP
Digital Output
Crystal oscillator output connection
2
XIN
Digital Input
Crystal oscillator input connection (may be left unconnected in slave
mode)
3
DGND
Supply
Digital negative supply
4
MCLK
Digital Input/Output Master clock; 256, 384, 512 fs (fs = word clock frequency) or 27MHz
5
DVDD
Supply
Digital positive supply
6
DINFRONT
Digital Input
Front channel data input
7
DINSRND
Digital Input
Surround channel data input
8
DINC_LFE
Digital Input
Centre and surround channel data input
9
DINREAR
Digital Input
Rear channel data for 6.1 and 7.1 inputs
10
LRCLK
Digital Input/Output Left/right word clock
11
BCLK
Digital IO
Audio interface bit clock
12
OPDIS
Digital Input p.d. Output disable
13
MODE
Digital Input p.d. 2/3 Wire control interface mode
14
SCLK
Digital Input
Serial interface clock
15
SDIN
Digital Input/Output Serial interface data
16
CSB
Digital Input
Serial interface load signal
17
EAPDB
Digital Output
External output stage power down
18
BVDD
Supply
PWM output buffer positive supply
19
OPSWN
Digital Output
PWM output negative Subwoofer channel
20
OPSWP
Digital Output
PWM output positive Subwoofer channel
21
BGND
Supply
PWM output buffer ground supply
22
OPRCN
Digital Output
PWM output negative Rear centre (left) channel
23
OPRCP
Digital Output
PWM output positive Rear centre (left) channel
24
BVDD
Supply
PWM output buffer positive supply
25
AGND
Supply
Analogue negative supply
26
CLKPSU
Digital Output
Clock for external PSU
27
BGND
Supply
PWM output buffer ground supply
28
OPSRN
Digital Output
PWM output negative Surround right channel
29
OPSRP
Digital Output
PWM output positive Surround right channel
30
BVDD
Supply
PWM output buffer positive supply
31
OPSLN
Digital Output
PWM output negative Surround left channel
32
OPSLP
Digital Output
PWM output positive Surround left channel
33
BGND
Supply
PWM output buffer ground supply
34
OPFCN
Digital Output
PWM output negative Front centre channel
35
OPFCP
Digital Output
PWM output positive Front centre channel
36
BVDD
Supply
PWM output buffer positive supply
37
OPFRN
Digital Output
PWM output negative Front right channel
38
OPFRP
Digital Output
PWM output positive Front right channel
39
BGND
Supply
PWM output buffer ground supply
40
OPFLN
Digital Output
PWM output negative Front left channel
41
OPFLP
Digital Output
PWM output positive Front left channel
42
BVDD
Supply
PWM output buffer positive supply
43
PWMCLKN
Digital Output
PWM Clock negative
44
PWMCLKP
Digital Output
PWM Clock positive
45
NC
Not Connected Do Not Connect
46
NC
Not Connected Do Not Connect
47
AVDD
Analogue Supply Analogue positive supply
48
AGND
Analogue Supply Analogue negative supply
Notes: Digital input pins have Schmitt trigger input buffers. Pins marked ‘p.u.’ or ‘p.d.’ have internal pull-up or pull down.
w
PP Rev 1.5 March 2004
5