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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 37.5Ω
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 800@0.9w 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 KΩ.
Note 4. 10% to 90% of full-scale transition.