WM8253
Production Data
Test Conditions
AVDD = DVDD1 = DVDD2 = 3.3V, AGND = DGND = 0V, TA = 25C, MCLK = 36MHz unless otherwise stated.
PARAMETER
SYMBOL
TEST
MIN
TYP
MAX
UNIT
CONDITIONS
Programmable Gain Amplifier
Resolution
8
bits
V/V
PGA[7:0] 7.57
Gain equation
0.78
255
Max gain
GMAX
GMIN
VOFF
8.2
8.35
0.78
10
8.8
V/V
V/V
mV
Min gain
0.75
0.87
Internal channel offset
Analogue to Digital Converter
Resolution
16
bits
MSPS
V
Maximum Speed
6
Full-scale input range
(2*(VRT-VRB))
VFS
2.0
DIGITAL SPECIFICATIONS
Digital Inputs
High level input voltage
Low level input voltage
High level input current
Low level input current
Input capacitance
VIH
VIL
IIH
0.8 DVDD2
V
0.2 DVDD2
V
1
1
A
A
pF
IIL
CI
5
Digital Outputs
High level output voltage
Low level output voltage
Supply Currents
VOH
VOL
IOH = 1mA
IOL = 1mA
DVDD2 - 0.5
V
V
0.5
Total supply current active
45.9
39.6
mA
mA
Total analogue AVDD, supply
current active
IAVDD
IDVDD1
IDVDD2
Total digital core, DVDD1,
supply current active
3
mA
mA
A
Digital I/O supply current,
DVDD2 active (see note 3)
3.3
30
Supply current full power down
200
mode
Notes:
1.
Digital I/O supply current depends on the capacitive load attached to the pin. The Digital I/O supply current is
measured with approximately 50pF attached to the pin.
PD, Rev 4.1, August 2011
7
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
