Production Data
WM8143-12
Electrical Characteristics
Test Characteristics
AVDD = DVDD = 4.75V to 5.25V, AGND = DGND = 0V … TA = 0oC to +70oC, MCLK = 8MHz, unless otherwise stated
PARAMETER
SYMBOL
TEST
MIN
TYP
MAX
UNIT
CONDITIONS
Supply Current - Active
Supply Current - Standby
Digital Inputs
25
4
40
10
mA
mA
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
Input Capacitance
VIH
VIL
IIH
0.8*DVDD
V
0.2*DVDD
V
1
1
µA
µA
pF
IIL
5
Digital Outputs
High Level Output Voltage
Low Level Output Voltage
VOH
VOL
IOZ
IOH = 1mA
IOL = 1mA
DVDD-0.75
V
V
DGND+0.75
1
High Impedance Output
Current
µA
Input Multiplexer
2
CDS Mode Full Scale Input
x denotes the
Vp-p
%
Range (VVS-VRS
)
channel selected
Gx
Channel to Channel Gain
Matching
1
Input Video Set-up Time
Input Video Hold Time
tVSU
tVH
10
15
10
15
ns
ns
ns
ns
Reset Video Set-up Time
Reset Video Hold Time
Reference String
tRSU
tRH
CDS Mode only
CDS Mode only
Reference Voltage - Top
Reference Voltage - Bottom
DAC Reference Voltage
R.L.C. Switching Impedance
Reset Level Clamp Options
VRT
VRB
VMID
VRU = 5V
VRU = 5V
VRU = 5V
3.47
1.47
2.47
3.5
1.5
2.5
500
1.5
2.5
3.5
3.53
1.53
2.53
V
V
V
W
V
V
V
VRLC
VRU = 5V
Voltage set
by register
1.46
2.46
3.46
1.54
2.54
3.54
configuration
Impedance VRT to VRB
Impedance VRU to AGND
8-Bit DACs
250
500
750
W
W
1000
1500
2000
Resolution
8
Bits
mV
Zero Code Voltage
MID
MID
+20
V
-20
V
Wolfson Microelectronics
PD. Rev 4 Nov. 99
3
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
