Datasheet
DS25BR120
www.ti.com
SNLS256E –MARCH 2007–REVISED APRIL 2013
AC Electrical Characteristics
(1)
(continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
(2)(3)
Symbol Parameter Conditions Min Typ Max Units
JITTER PERFORMANCE WITH PE = OFF
t
RJ1A
V
ID
= 350 mV 2.5 Gbps 0.5 1 ps
Random Jitter (RMS Value)
V
CM
= 1.2V
t
RJ2A
No Test Channels
Clock (RZ)
3.125 Gbps 0.5 1 ps
(6)
PE0 = 0, PE1 = 0
t
DJ1A
V
ID
= 350 mV 2.5 Gbps 9 31 ps
Deterministic Jitter (Peak to Peak) V
CM
= 1.2V
t
DJ2A
No Test Channels
(7)
K28.5 (NRZ)
3.125 Gbps 16 40 ps
PE0 = 0, PE1 = 0
t
TJ1A
V
ID
= 350 mV 2.5 Gbps 0.05 0.13 UI
P-P
Total Jitter (Peak to Peak) V
CM
= 1.2V
t
TJ2A
No Test Channels
(8)
PRBS-23 (NRZ)
3.125 Gbps 0.09 0.16 UI
P-P
PE0 = 0, PE1 = 0
JITTER PERFORMANCE WITH PE = LOW (Figure 5 and Figure 6)
t
RJ1B
V
ID
= 350 mV 2.5 Gbps 0.5 1.3 ps
Random Jitter (RMS Value) V
CM
= 1.2V
t
RJ2B
Test Channel A
(6)
Clock (RZ)
3.125 Gbps 0.5 1.3 ps
PE0 = 1, PE1 = 0
t
DJ1B
V
ID
= 350 mV 2.5 Gbps 17 31 ps
Deterministic Jitter (Peak to Peak) V
CM
= 1.2V
t
DJ2B
Test Channel A
(7)
K28.5 (NRZ)
3.125 Gbps 18 40 ps
PE0 = 1, PE1 = 0
t
TJ1B
V
ID
= 350 mV 2.5 Gbps 0.09 0.14 UI
P-P
Total Jitter (Peak to Peak) V
CM
= 1.2V
t
TJ2B
Test Channel A
(8)
PRBS-23 (NRZ)
3.125 Gbps 0.12 0.19 UI
P-P
PE0 = 1, PE1 = 0
JITTER PERFORMANCE WITH PE = MEDIUM (Figure 5 and Figure 6)
t
RJ1C
V
ID
= 350 mV 2.5 Gbps 0.5 1.2 ps
Random Jitter (RMS Value) V
CM
= 1.2V
t
RJ2C
Test Channel B
(6)
Clock (RZ)
3.125 Gbps 0.5 1.2 ps
PE0 = 0, PE1 = 1
t
DJ1C
V
ID
= 350 mV 2.5 Gbps 21 44 ps
Deterministic Jitter (Peak to Peak) V
CM
= 1.2V
t
DJ2C
Test Channel B
(7)
K28.5 (NRZ)
3.125 Gbps 27 48 ps
PE0 = 0, PE1 = 1
t
TJ1C
V
ID
= 350 mV 2.5 Gbps 0.09 0.16 UI
P-P
Total Jitter (Peak to Peak) V
CM
= 1.2V
t
TJ2C
Test Channel B
(8)
PRBS-23 (NRZ)
3.125 Gbps 0.13 0.23 UI
P-P
PE0 = 0, PE1 = 1
JITTER PERFORMANCE WITH PE = HIGH (Figure 5 and Figure 6)
t
RJ1D
V
ID
= 350 mV 2.5 Gbps 0.5 1.2 ps
Random Jitter (RMS Value) V
CM
= 1.2V
t
RJ2D
Test Channel C
(6)
Clock (RZ)
3.125 Gbps 0.5 1.2 ps
PE0 = 1, PE1 = 1
t
DJ1D
V
ID
= 350 mV 2.5 Gbps 30 65 ps
Deterministic Jitter (Peak to Peak) V
CM
= 1.2V
t
DJ2D
Test Channel C
(7)
K28.5 (NRZ)
3.125 Gbps 30 58 ps
PE0 = 1, PE1 = 1
t
TJ1D
V
ID
= 350 mV 2.5 Gbps 0.09 0.20 UI
P-P
Total Jitter (Peak to Peak) V
CM
= 1.2V
t
TJ2D
Test Channel C
(8)
PRBS-23 (NRZ)
3.125 Gbps 0.13 0.22 UI
P-P
PE0 = 1, PE1 = 1
(6) Measured on a clock edge with a histogram and an accumulation of 1500 histogram hits. Input stimulus jitter is subtracted geometrically.
(7) Tested with a combination of the 1100000101 (K28.5+ character) and 0011111010 (K28.5- character) patterns. Input stimulus jitter is
subtracted algebraically.
(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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