DS15BR400_15 Datasheet, PDF (11/19 Pages) Texas Instruments – 4-Channel LVDS Buffer/Repeater with Pre-Emphasis

DS15BR400, DS15BR401
www.ti.com
SNLS224G – AUGUST 2006 – REVISED APRIL 2013
Typical Performance Characteristics
Power Supply Current vs. Data Rate
300
Total Jitter vs. Ambient Temperature
30
250
25
200
20
150
100
50
0
0
V_CC = 3.3V
V_ID = 500 mV
V_CM = 1.2V
NRZ PRBS-23
T_A =25°C
0.4
0.8 1.2 1.6
2.0
DATA RATE (Gbps)
15
V_CC = 3.3V
10
V_ID = 500 mV
V_CM = 1.2V
5
NRZ PRBS-23
1.5 Gbps
0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
Figure 15.
Figure 16.
Total Jitter vs. Data Rate
30
25
20
15
V_CC = 3.3V
10
V_ID = 500 mV
V_CM = 1.2V
5
NRZ PRBS-23
T_A = 25°C
0
1.0
1.2
1.4 1.6 1.8
2.0
DATA RATE (Gbps)
Data Rate vs. Cable Length (0.25 UI Criteria)
2.5
V_CC = 3.3V
NRZ PRBS-23
2.0
Jitter = 0.25 UI
T_A = 25 °C
CAT5e
1.5
PEM
PEM
OFF
ON
1.0
0.5
0
1
10
20
30
40
CABLE LENGTH (m)
Figure 17.
Figure 18. ⁽¹⁾
Data Rate vs. Cable Length (0.5 UI Criteria)
2.5
V_CC = 3.3V
NRZ PRBS-23
2.0
Jitter = 0.5 UI
T_A = 25°C
CAT5e
1.5
PEM
OFF
1.0
PEM
ON
0.5
0
1
10
20
30
40
CABLE LENGTH (m)
Figure 19. ⁽¹⁾
(1) Data presented in this graph was collected using the DS15BR400EVK, a pair of RJ-45 to SMA adapter boards and various length
Belden 1700a cables. The maximum data rate was determined based on total jitter (0.25 UI criteria) measured after the cable. The total
jitter was a peak to peak value measured with a histogram including 3000 window hits.
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