Table 7-14, Crt display analog (dac) characteristics – AMD Geode LX [email protected] User Manual
Page 613

AMD Geode™ LX Processors Data Book
613
Electrical Specifications
33234H
Table 7-14. CRT Display Analog (DAC) Characteristics
Symbol
Parameter
Min
Typ
Max
Units
Comments (Note 1)
V
OS
Output Voltage Saturation Limit
1.25
V
I
OVAR
Output Current
18.67
mA
Achieves 700 mV on 37.5
Ω
INL
Integral Linearity Error
+/-1
LSB
DNL
Differential Linearity Error
+/-1
LSB
t
FS
Full Scale Settling Time
2.5
ns
Note 2
--
DAC-to-DAC matching
1
4
%
--
Analog Power Supply Rejection
45
dB
@ 1 KHz
t
RISE
Output Rise Time
0.5
1.25
ns
Note 3 and Note 4
t
FALL
Output Fall Time
0.5
1.25
ns
Note 3 and Note 4
Note 1. All tests, unless otherwise specified, are at V
IO
= 3.14V to 3.46V, T
C
= 0°C to 85°C (or -40°C to 85°C if
LX [email protected] industrial temperature range part), and C
L
= 50 pF.
Note 2. Full-scale transition time is measured from 50% of full-scale transition until output remaining within 1LSB of target.
Note 3. Timing measurements are made with a 75
Ω doubly-terminated load, with VEXT
REF
= 1.235V and R
SET
= 1.2 K
Ω.
Note 4. 10% to 90% of full-scale transition.