Lattice Semiconductor
ORCA ORT8850 Data Sheet
Embedded Core LVDS I/O
Table 28. Driver DC Data
Parameter
Symbol
VOH
Test Conditions
RLOAD = 100 Ω 1%
RLOAD = 100 Ω 1%
RLOAD = 100 Ω 1%
RLOAD = 100 Ω 1%
VCM = 1.0 V and 1.4 V
VCM = 1.0 V and 1.4 V
RLOAD = 100 Ω 1%
Min.
—
Typ.
—
Max.
1.475
—
Units
V
Output Voltage High, VOA or VOB
Output Voltage Low, VOA or VOB
Output Differential Voltage
Output Offset Voltage
VOL
0.925
0.25
1.125
80
—
V
⏐VOD⏐
VOS
—
0.45
1.275
120
V
—
V
Output Impedance, Differential
RO Mismatch Between A and B
Ro
100
—
W
%
Δ RO
—
10
Change in Differential Voltage Between
Complementary States
⏐Δ VOD⏐
Δ VOS
—
—
—
—
25
25
mV
mV
Change in Output Offset Voltage
Between Complementary States
RLOAD = 100 Ω 1%
Output Current
ISA, ISB
ISAB
Driver shorted to GND
Drivers shorted together
—
—
—
—
24
12
mA
mA
Output Current
Power-off Output Leakage
VDD = 0 V
VPAD, VPADN = 0 V—2.5 V
|Ixa|, |Ixb|
—
—
10
mA
1. VDD33 = 3.1 V—3.5 V, VDD15 = 1.4 V—1.6 V, –40 ˚C.
2. External reference, REF10 = 1.0 V 3%, REF14 = 1.4 V 3%.
Table 29. Driver AC Data1
Parameter
Symbol
Test Conditions
ZL = 100 Ω 1%
CPAD = 3.0 pF, CPAD = 3.0 pF
Min.
Typ.
Max.
Units
VOD Fall Time, 80% to 20%
tF
100
—
210
ps
VOD Rise Time, 20% to 80%
ZL = 100 Ω 1%
CPAD = 3.0 pF, CPAD = 3.0 pF
tR
100
—
—
—
210
50
ps
ps
Differential Skew
|tPHLA – tPLHB| or |tPHLB – tPLHA|
Any differential pair on pack-
age at 50% point of the tran-
sition
tSKEW1
1. VDD33 = 3.1V - 3.5 V, VDD15 = 1.4V - 1.6 V, -40˚C.
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LATTICE [ LATTICE SEMICONDUCTOR ]
