WM8766 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'WM8766' PDF : 36 Pages View PDF
WM8766
Production Data
PIN DESCRIPTION – 28 LEAD SSOP
PIN
NAME
TYPE
DESCRIPTION
1
MODE
Digital input
Control format selection
0 = Software control
1 = Hardware control
2
MCLK
Digital input
Master clock; 128, 192, 256, 384, 512 or 768fs (fs = word clock frequency)
3
BCLK
Digital input/output Audio interface bit clock
4
LRCLK
Digital input/output Audio left/right word clock
5
DVDD
Supply
Digital positive supply
6
DGND
Supply
Digital negative supply
7
DIN1
Digital input
DAC channel 1 data input
8
DIN2
Digital input
DAC channel 2 data input
9
DIN3
Digital input
DAC channel 3 data input
10
DNC
Do not connect Do not connect
11
ML/I2S
Digital input
Software Mode: Serial interface Latch signal
Hardware Mode: Input Audio Data Format
12
MC/IWL
Digital input
Software Mode: Serial control interface clock
Hardware Mode: Audio data input word length
13
MD/DM
Digital input
Software Mode: Serial interface data
Hardware Mode: De-emphasis selection
14
MUTE
Digital input/output DAC Zero Flag output or DAC mute input
15
TESTREF
Analogue output Test reference
16
VREFN
Supply
DAC negative supply
17
VREFP
Supply
DAC positive reference supply
18
VMID
Analogue output Midrail divider decoupling pin; 10uF external decoupling
19
NC
No connect
No internal connection
20
NC
No connect
No internal connection
21
VOUT1L
Analogue output DAC channel 1 left output
22
VOUT1R
Analogue output DAC channel 1 right output
23
VOUT2L
Analogue output DAC channel 2 left output
24
VOUT2R
Analogue output DAC channel 2 right output
25
VOUT3L
Analogue output DAC channel 3 left output
26
VOUT3R
Analogue output DAC channel 3 right output
27
AGND
Supply
Analogue negative supply and substrate connection
28
AVDD
Supply
Analogue positive supply
Note: Digital input pins have Schmitt trigger input buffers.
w
PD Rev 4.1 July 2005
4
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