Data Sheet
June 2003
TTSV02622 STS-24 Backplane Transceiver
(continued)
Table 16. LVDS Driver dc Data*
Parameter
Output Voltage High, V
OA
or V
OB
Output Voltage Low, V
OA
or V
OB
Output Differential Voltage
Output Offset Voltage
Output Impedance, Signal Ended
R
O
Mismatch Between A and B
Change in Differential Voltage
Between Complementary States
Change in Output Offset Voltage
Between Complementary States
Output Current
Output Current
Power-Off Output Leakage
Symbol
V
OH
V
OL
|V
OD
|
V
OS
R
O
∆R
O
|∆V
OD
|
∆VOS
I
SA
, I
SB
I
SAB
|Ixa|, |Ixb|
Conditions
R
LOAD
= 100
Ω
± 1%
R
LOAD
= 100
Ω
± 1%
R
LOAD
= 100
Ω
± 1%
R
LOAD
= 100
Ω
± 1%
V
CM
= 1.0 V and 1.4 V
V
CM
= 1.0 V and 1.4 V
R
LOAD
= 100
Ω
± 1%
R
LOAD
= 100
Ω
± 1%
Driver Shorted to GND
Drivers Shorted Together
V
DD
= 0 V
V
PAD
, V
PADN
= 0 V—3 V
Min
—
0.925
†
0.25
1.125
†
40
—
—
—
—
—
—
Typ
—
—
—
—
50
—
—
—
—
—
—
Max
1.475
†
—
0.45
†
1.275
†
60
10
25
25
24
12
30
Unit
V
V
V
V
Ω
%
mV
mV
mA
mA
µA
* V
DD
= 3.1 V—3.5 V, 0 °C—125 °C, slow—fast process.
† External references selected (CNT = 0), REF10 = 1.0 V ± 3%, REF14 = 1.4 V ± 3%.
Table 17. LVDS Driver ac Data*
Parameter
V
OD
Fall Time, 80%—20%
VOD Rise Time, 20%—80%
Differential Skew
|t
PHLA
– t
PHLB
| or |T
PHLB
– T
PLHA
|
Symbol
t
F
t
R
t
SKEW1
Conditions
Z
L
= 100
Ω
± 1%
C
PAD
= 3.0 pF, C
PADN
= 3.0 pF
Z
L
= 100
Ω
± 1%
C
PAD
= 3.0 pF, C
PADN
= 3.0 pF
Any Differential Pair on Package
at the 50% Point of the Transition
Min
100
100
—
Max
200
200
50
Unit
ps
ps
ps
* V
DD
= 3.1 V—3.5 V, 0 °C—125 °C, slow—fast process.
Table 18. LVDS Driver Reference Data
Parameter
REF10 Voltage Range
REF14 Voltage Range
Nominal Input Current—
REF10 and REF14 Reference Inputs
Conditions
—
—
—
Min
0.95
1.35
—
Typ
1.0
1.4
10
Max
1.05
1.45
—
Unit
V
V
µA
Agere Systems Inc.
53
AGERE [ AGERE SYSTEMS ]
