Datasheet

DS25BR150
SNLS257E –APRIL 2007–REVISED APRIL 2013 www.ti.com
DC Electrical Characteristics (continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
(1)(2)(3)
Symbol Parameter Conditions Min Typ Max Units
LVDS INPUT DC SPECIFICATIONS (IN+, IN-)
V
ID
Input Differential Voltage 0 1 V
V
TH
Differential Input High Threshold V
CM
= +0.05V or V
CC
-0.05V 0 +100 mV
V
TL
Differential Input Low Threshold −100 0 mV
V
CMR
Common Mode Voltage Range V
ID
= 100 mV 0.05 V
CC
- V
0.05
V
IN
= 3.6V or 0V ±1 ±10 μA
I
IN
Input Current
V
CC
= 3.6V or 0V
C
IN
Input Capacitance Any LVDS Input Pin to GND 1.7 pF
R
IN
Input Termination Resistor Between IN+ and IN- 100 Ω
SUPPLY CURRENT
I
CC
Supply Current 27 35 mA
AC Electrical Characteristics
(1)
Over recommended operating supply and temperature ranges unless otherwise specified.
(2)(3)
Symbol Parameter Conditions Min Typ Max Units
LVDS OUTPUT AC SPECIFICATIONS (OUT+, OUT-)
t
PHLD
Differential Propagation Delay High to Low 370 520 ps
R
L
= 100Ω
t
PLHD
Differential Propagation Delay Low to High 355 520 ps
t
SKD1
Pulse Skew |t
PLHD
− t
PHLD
|
(4)
15 100 ps
t
SKD2
Part to Part Skew
(5)
45 160 ps
t
LHT
Rise Time 80 150 ps
R
L
= 100Ω
t
HLT
Fall Time 80 150 ps
JITTER PERFORMANCE (Figure 5)
t
DJ1
V
ID
= 350 mV 2.5 Gbps 11 33 ps
Deterministic Jitter (Peak-to-Peak Value )
(6)
V
CM
= 1.2V
t
DJ2
3.125 Gbps 15 41 ps
K28.5 (NRZ)
t
RJ1
V
ID
= 350 mV 1.25 GHz 0.5 1 ps
Random Jitter (RMS Value)
(7)
V
CM
= 1.2V
t
RJ2
1.5625 GHz 0.5 1 ps
Clock (RZ)
t
TJ1
V
ID
= 350 mV 2.5 Gbps 0.04 0.11 UI
P-P
Total Jitter (Peak to Peak Value)
(8)
V
CM
= 1.2V
t
TJ2
3.125 Gbps 0.07 0.15 UI
P-P
PRBS-23 (NRZ)
(1) Specification is ensured by characterization and is not tested in production.
(2) The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not ensured.
(3) Typical values represent most likely parametric norms for V
CC
= +3.3V and T
A
= +25°C, and at the Recommended Operation Conditions
at the time of product characterization and are not ensured.
(4) t
SKD1
, |t
PLHD
− t
PHLD
|, is the magnitude difference in differential propagation delay time between the positive going edge and the negative
going edge of the same channel.
(5) t
SKD2
, Part to Part Skew, is defined as the difference between the minimum and maximum specified differential propagation delays. This
specification applies to devices at the same V
CC
and within 5°C of each other within the operating temperature range.
(6) Tested with a combination of the 1100000101 (K28.5+ character) and 0011111010 (K28.5- character) patterns. Input stimulus jitter is
subtracted algebraically.
(7) Measured on a clock edge with a histogram and an accumulation of 1500 histogram hits. Input stimulus jitter is subtracted geometrically.
(8) Measured on an eye diagram with a histogram and an accumulation of 3500 histogram hits. Input stimulus jitter is subtracted.
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