
M
DC-Coupled, UCSP 3.125Gbps Equalizer
4
_______________________________________________________________________________________
Typical Operating Characteristics
(V
CC
= +3.3V, V
TI
= +1.1V, V
TO
= +1.1V, and T
A
= +25
°
C, unless otherwise noted.)
40in, 6-mil FR4 AT 3.125Gbps WITH CJTPAT
(BEFORE EQUALIZATION, AFTER EQUALIZATION)
M
100ps/div
150mV/div
20ft TENSOLITE CABLE AT 2.48832Gbps WITH PRBS 2
23
- 1
(BEFORE EQUALIZATION, AFTER EQUALIZATION)
M
100ps/div
150mV/div
30in, 6-mil FR4 AT 3.125Gbps WITH K28.5
(BEFORE EQUALIZATION, AFTER EQUALIZATION)
M
680ps/div
150mV/div
SUPPLY CURRENT
vs. AMBIENT TEMPERATURE
M
AMBIENT TEMPERATURE (
°
C)
S
70
60
40
50
20
30
10
10
20
30
40
50
60
70
80
90
100
0
0
80
RANDOM JITTER vs. LENGTH
(IN
±
= 400mV
P-P
, PATTERN = K28.7)
M
LENGTH OF 6-mil FR4 STRIPLINE (in)
R
R
)
40
30
20
10
2
3
4
5
1
0
50
2.48832Gbps
3.125Gbps
RANDOM JITTER vs. LENGTH
(IN
±
= 800mV
P-P
, PATTERN = K28.7)
M
LENGTH OF 6-mil FR4 STRIPLINE (in)
R
R
)
40
30
20
10
2
3
4
5
1
0
50
2.48832Gbps
3.125Gbps
RANDOM JITTER vs. INPUT AMPLITUDE
(40in, 6-mil FR4 STRIPLINE, PATTERN = K28.7)
5
M
INPUT AMPLITUDE (mV
P-P
)
R
R
)
900
800
700
600
500
2
3
4
1
400
1000
2.48832Gbps
3.125Gbps
DETERMINISTIC JITTER vs. BIT RATE
(30in, 6-mil FR4 STRIPLINE, IN
±
= 1000mV
P-P
)
80
M
BIT RATE (Gbps)
D
3.2
2.9
2.6
2.3
30
40
50
60
70
20
2.0
3.5
PRBS 2
10
- 1
PRBS 2
7
- 1
K28.5
CJTPAT
DETERMINISTIC JITTER vs. BIT RATE
(33ft, 28AWG TENSOLITE CABLE,
IN
±
= 400mV
P-P
)
M
BIT RATE (Gbps)
D
3.2
2.9
2.6
2.3
50
60
70
80
90
100
40
2.0
3.5
PRBS 2
10
- 1
PRBS 2
7
- 1
CJTPAT
K28.5