WM8716
PIN DESCRIPTION
PIN
NAME
TYPE
DESCRIPTION
Hardware Mode
Normal Mode
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
DVDD
AVDDR
AGNDR
VMIDR
MODE8X
VOUTR
AGND
AVDD
VOUTL
DIFFHW
VMIDL
AGNDL
AVDDL
ZERO
RSTB
CSBIWO
Digital input
Digital input
Digital input
Digital output
Analogue input
Analogue output
Supply
Supply
Supply
Supply
Analogue output
Digital input
Analogue output
Supply
Supply
Analogue output
Digital input
Analogue output
Supply
Supply
Digital output
Digital input
Digital input
Internal pull-down
Sample rate clock input.
Audio data serial input
Audio data bit clock input.
Oscillator buffered output (system clock).
Oscillator input.
Oscillator output.
Digital ground supply.
Digital positive supply.
Analogue positive supply.
Analogue ground supply.
Mid rail right channel.
Internal pull-down, active high, 8 x fs mode.
Right channel DAC output.
Analogue ground supply.
Analogue positive supply.
Left channel DAC output.
Internal pull-down, active high, differential mono mode
Mid rail left channel.
Analogue ground supply.
Analogue positive supply.
DINL
Differential Mode
8X Mode
Production Data
Software
Mode
Audio data
serial input
Infinite zero detect – active low. Open drain type output with active pull-down.
Reset input – active low. Internal pull-up.
Wordlength:
Low for 16-bit data.
High for 20-bit
(normal) or 24-bit
I
2
S data.
Low for hardware
mode.
Low to soft mute.
High for normal
operation.
Z for automute.
Wordlength:
Low for 16-bit data.
High for 20-bit
(normal) or 24-bit
I
2
S data.
Low for left
mono mode. High for
right mono mode
Low to soft mute.
High for normal
operation.
Z for automute.
Wordlength:
Low for 20-bit data.
High for 24-bit data.
Low for
serial
interface
operation.
High for
software
mode.
Low to soft
mute.
High for
normal
operation.
Z for
automute.
Control serial
interface
data signal.
Control serial
interface
clock signal.
Control serial
interface
load signal.
24
MODE
Digital input
Internal pull-up
Digital input
Internal pull-up
DINR
25
MUTEB
Low to soft mute.
High for normal
operation.
Z for automute.
26
MD/DM0
Digital input
Internal pull-up
De-emphasis mode
select bit 0.
Low for no
de-emphasis.
High for 44.1kHz
de-emphasis.
Low for normal filter
operation.
High for filter slow
roll-off.
Audio serial format:
Low – right justified.
High – I
2
S.
LRP – LRCLK
polarity select.
27
MC/DM1
Digital input
Internal pull-up
De-emphasis mode
select bit 1.
Unused.
Leave unconnected.
28
ML/I2S
Digital input
Internal pull-up
Audio serial format:
Low – right justified.
High – I
2
S.
Input data format:
Low – right justified.
High – left justified.
Note:
Digital input pins have Schmitt trigger input buffers except Pin 12 and Pin 17.
w
PD Rev 4.1 September 2006
8
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
