THS7373 Datasheet, PDF (16/49 Pages) Texas Instruments – 4-Channel Video Amplifier with 1-SD and 3-HD Sixth-Order Filters and 6-dB Gain

THS7373
SBOS506 – DECEMBER 2009
www.ti.com
TYPICAL CHARACTERISTICS: 3.3 V, Standard-Definition (CVBS) Channels (continued)
With load = 150 Ω || 10 pF, dc-coupled input and output, unless otherwise noted.
CVBS CHANNEL SMALL-SIGNAL PULSE RESPONSE vs TIME CVBS CHANNEL LARGE-SIGNAL PULSE RESPONSE vs TIME
1.9
Input Voltage Waveforms
1.8
Input
t_R/t_F = 1 ns
Input
t_R/t_F = 120 ns
0.75
0.65
4.6
Input Voltage Waveforms
3.6
Input
t_R/t_F = 1 ns
Input
t_R/t_F = 120 ns
1.65
0.65
1.7
0.55
Input
t_R/t_F = 120 ns
1.6
0.45
Output Voltage
Waveforms
1.5
0.35
Input
V_S = +3.3 V
t_R/t_F = 1 ns
1.4
0.25
-100 0 100 200 300 400 500 600 700 800 900 1000
Time (ns)
2.6
-0.35
Input
t_R/t_F = 120 ns
1.6
-1.35
Output Voltage
Waveforms
0.6
Input
-2.35
V_S = +3.3 V
t_R/t_F = 1 ns
-0.6
-3.35
-100 0 100 200 300 400 500 600 700 800 900 1000
Time (ns)
Figure 25.
Figure 26.
CROSSTALK vs FREQUENCY
CROSSTALK vs FREQUENCY
-30 _{VS = +3.3 V}
-40
Filter Mode
Input-Referred
Worst-Case Crosstalk
-50
HD In, HD Out
-20 _{VS = +3.3 V}
-30 Bypass Mode
Input-Referred
-40 Worst-Case Crosstalk
HD In, HD Out
-50
-60
-60
-70
-70
-80
-90
SD In, HD Out
HD In, SD Out
-80
-90 _{SD In, HD Out}
HD In, SD Out
-100
1M
10 M
100 M
-100
1G
1M
10 M
100 M
1G
Frequency (Hz)
Frequency (Hz)
Figure 27.
Figure 28.
CVBS CHANNEL SLEW RATE vs OUTPUT VOLTAGE
60
V_S = +3.3 V
DC-Coupled Output
50 _{Load = 150 W || 10 pF}
40
30
20
Positive and Negative Slew Rate
10
0
0.5
1.0
1.5
2.0
2.5
Output Voltage (V_PP)
Figure 29.
CVBS CHANNEL DISABLE MODE RESPONSE vs TIME
2.4
4
2.1
2
V_DISABLE
1.8
0
1.5
-2
1.2
V_S = +3.3 V ^-4
0.9
-6
0.6
-8
0.3
V_OUT
-10
0
-12
-0.3
0
-14
100
200
300
400
500
600
Time (ns)
Figure 30.
16
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