Preliminary Technical Data
WM9713L
PIN DESCRIPTION
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
NAME
DBVDD
MCLKA
MCLKB / GPIO6 / (ADA / MASK)
DGND1
SDATAOUT
BITCLK
DGND2
SDATAIN
DCVDD
SYNC
RESETB / GPIO7 / (PENDOWN)
TYPE
Supply
Digital Input
Digital In/Out
Supply
Digital Input
Digital Output
Supply
Digital Output
Supply
Digital Input
Digital In / Out
Digital I/O Buffer Supply
Master Clock A Input
Master Clock B Input / GPIO6 / (ADA output / MASK input)
Digital Ground (return path for both DCVDD and DBVDD)
Serial Data Output from Controller / Input to WM9713L
Serial Interface Clock Output to Controller
Digital Ground (return path for both DCVDD and DBVDD)
Serial Data Input to Controller / Output from WM9713L
Digital Core Supply
Serial Interface Synchronisation Pulse from Controller
Reset (asynchronous, active Low, resets all registers to their
default) / GPIO7 / (pen down output)
Top Sheet Connection for 5-wire Touchpanels / Auxiliary ADC
input / GPIO8 / (SPDIF digital audio output)
Touchpanel Driver Supply
Touchpanel Connection: X+ (Right) for 4-wire / bottom right for 5-
wire
Touchpanel Connection: Y+ (Top) for 4-wire / top right for 5-wire
Touchpanel Connection: X- (Left) for 4-wire / top left for 5-wire
Touchpanel Connection: Y- (Bottom) for 4-wire / bottom left for 5-
wire
Touchpanel Driver Ground
Line Input to analogue audio mixers, typically used for beeps
Mono Input (RX)
Microphone preamp A input 1
Microphone common mode input
Left Line Input
Right Line Input
Analogue Supply (audio DACs, ADCs, PGAs, mic amps, mixers)
Analogue Ground
Internal Reference Voltage (buffered CAP2)
Bias Voltage for Microphones (buffered CAP2
×
1.8)
Microphone preamp A input 2 / COMP1 input / Auxillary ADC input
Microphone preamp B input / COMP2 input / Auxillary ADC input
Mono output driver (line or headphone)
Internal Reference Voltage (normally AVDD/2, if not overdriven)
Auxillary output driver (speaker, line or headphone)
Speaker ground (feeds output buffers on pins 33, 35, 36 and 37)
Left speaker driver (speaker, line or headphone)
Right speaker driver (speaker, line or headphone)
Auxillary output driver (speaker, line or headphone)
Speaker supply (feeds output buffers on pins 33, 35, 36 and 37)
Headphone left driver (line or headphone)
Headphone ground (feeds output buffers on pins 39 and 41)
Headphone right driver (line or headphone)
Analogue ground, chip substrate
Headphone supply (feeds output buffers on pins 39 and 41)
DESCRIPTION
WIPER / AUX4 / GPIO8 / (SPDIF) Analogue In / Out
TPVDD
X+/ BR
Y+/TR
X-/TL
Y-/BL
TPGND
PCBEEP
MONOIN
MIC1
MICCM
LINEL
LINER
AVDD
AGND
VREF
MICBIAS
MIC2A / COMP1 / AUX1
MIC2B / COMP2 / AUX2
MONO
CAP2
OUT4
SPKGND
SPKL
SPKR
OUT3
SPKVDD
HPL
HPGND
HPR
AGND2
HPVDD
Supply
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Supply
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Supply
Supply
Analogue Output
Analogue Output
Analogue Input
Analogue Input
Analog output
Analogue In / Out
Analogue Output
Supply
Analogue Output
Analogue Output
Analogue Output
Supply
Analogue Output
Supply
Analogue Output
Supply
Supply
1
PTD, March 2004, Rev 2.2
5
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
