Production Data
WM8195
PIN
31
32
33
34
35
36
37
38
39
NAME
TYPE
DESCRIPTION
OP[7]
OP[8]
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Supply
See pins 21 to 23 for details.
OP[9]
OP[10]
DVDD3
DGND4
OP[11]
Digital I/O supply (3.3V/5V).
Digital ground (0V).
Supply
Digital I/O
Digital I/O
Digital I/O
See pins 21 to 23 for details.
If the device has been configured to use the serial interface, pin OP[13]/SDO may
be used to output register read-back data when OEB = 0 and SEN has been
pulsed high.
OP[12]
OP[13]/SDO
See Serial Interface sections in Device Description for further details.
40
41
42
DGND5
NC
Supply
Digital ground (0V).
No connection.
NRESET
Digital input
Reset input, active low. This signal forces a reset of all internal registers and selects
whether the serial or parallel control interface is used. See pin SEN/STB.
43
44
45
46
47
48
AVDD1
AVDD2
AGND5
AGND6
VRB
Supply
Supply
Supply
Supply
Analogue supply (5V).
Analogue supply (5V).
Analogue ground (0V).
Analogue ground (0V).
Analogue output Lower reference voltage. This pin must be capacitively decoupled to AGND.
Analogue output Lower reference voltage. This pin must be capacitively decoupled to AGND.
VRT
PD Rev 4.1 July 2005
w
5
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
