THS7374 Datasheet, PDF (14/37 Pages) Texas Instruments – 4-Channel SDTV Video Amplifier with 6th-Order Filters and 6-dB Gain

THS7374
SLOS590 – JULY 2008....................................................................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: V_S+ = 5 V
R_L = 150 Ω to GND and dc-coupled input and output, unless otherwise noted.
SMALL-SIGNAL GAIN vs FREQUENCY
10
Bypass
0
Mode
R_L = 75 W
-10
R_L = 150 W
-20
Filter Mode
-30
R_L = 150 W
-40 V_S = +5 V
AC-Coupled Output
-50 C_L = 10 pF
V_OUT = 200 mV_PP
-60
100 k
1M
10 M
R_L = 75 W
100 M
1G
Frequency (Hz)
Figure 22.
PHASE vs FREQUENCY
45
0
-45
-90
R_L = 75 W and 150 W
-135
-180
Filter Mode
-225 _{VS = +5 V}
-270 AC-Coupled Output
-315
C_L = 10 pF
V_OUT = 200 mV_PP
-360
100 k
1M
10 M
R_L = 150 W
R_L = 75 W
Bypass
Mode
100 M
1G
Frequency (Hz)
Figure 24.
GROUP DELAY vs FREQUENCY
120
110
100
R_L = 75 W and 150 W
Filter Mode
90
80
70
60
V_S = +5 V
AC-Coupled Output
50 ^CL ^{= 10 pF}
V_OUT = 200 mV_PP
40
100 k
1M
10 M
Frequency (Hz)
Figure 26.
100 M
SMALL-SIGNAL GAIN vs FREQUENCY
7.0
Bypass
6.5
Mode
6.0
5.5
Filter Mode
R_L = 150 W
5.0
R_L = 75 W and 150 W
4.5
4.0
V_S = +5 V
3.5 AC-Coupled Output
R_L = 75 W
3.0 ^{CL = 10 pF}
V_OUT = 200 mV_PP
2.5
100 k
1M
10 M
100 M
1G
Frequency (Hz)
Figure 23.
GROUP DELAY vs FREQUENCY
7.0
6.5 ^{VS = +5 V}
AC-Coupled Output
6.0 C_L = 10 pF
5.5 ^VOUT ^{= 200 mV}PP
5.0
R_L = 150 W
4.5
4.0
3.5
Bypass Mode
3.0
R_L = 75 W
2.5
2.0
100 k
1M
10 M
100 M
1G
Frequency (Hz)
Figure 25.
LARGE-SIGNAL GAIN vs FREQUENCY
10
0
V_S = +5 V
-10 AC-Coupled Output
Load = 150 W || 10 pF
-20
Bypass
Mode
-30
V_O = 0.2 V_PP
Filter
-40
V_O = 1 V_PP
V_O = 2 V_PP
Mode
-50
V_O = 2 V_PP
V_O = 0.2 V_PP
-60
100 k
1M
10 M
100 M
1G
Frequency (Hz)
Figure 27.
14
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