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WM8816(Stereo Digital Volume Control)
BLOCK DIAGRAM
LIN
LGND
Zero
Crossing
Detector
CSB
WM8816
MUTEB
DATA
CCLK
Zero
Crossing
Detector
RGND
RIN
AVDD
AGND
PIN DESCRIPTION
PIN
NAME
1
AVDD
2
LMO
3
LFO
4
LIN
5
LGND
6
CSB
7
DVDD
8
MUTEB
9
DATA
10
CCLK
11
DGND
12
RGND
13
RIN
14
RFO
15
RMO
16
AGND
LFO
LMO
Peak
Level
Control
Control
DAC
Peak
Level
Control
RMO
RFO
DVDD
DGND
TYPE
DESCRIPTION
Supply
Supply voltage for Analogue Circuitry
Analogue output
External Op-amp Inverting Input (Left channel)
Analogue input
External Op-amp Feedback Signal (Left channel)
Analogue input
Input Signal (Left Channel)
Analogue input
Input Signal Ground (Left Channel)
Digital input
Chip Select (active low)
Supply
Supply Voltage for Digital Circuitry
Digital input
Mute (active low)
Digital In/Out
Serial Interface Data Input/Output (tri-state)
Digital input
Serial Interface Clock
Supply
Digital Ground
Analogue input
Input Signal Ground (Left Channel)
Analogue input
Input Signal (Left Channel)
Analogue input
External Op-amp Feedback Signal (Left channel)
Analogue output
External Op-amp Inverting Input (Left channel)
Supply
Analogue Ground
PIN CONFIGURATION
AVDD
LMO
-
LFO
+
LEFT OUT
LIN
LGND
CSB
DVDD
External Opamp
MUTEB
RIGHT OUT
+
-
TX-NR1000
1
AGND
16
2
RMO
15
3
RFO
14
4
RIN
13
5
RGND
12
6
DGND
11
7
CCLK
10
8
DATA
9
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