THS7372 Datasheet, PDF (3/49 Pages) Texas Instruments – 4-Channel Video Amplifier with One CVBS and Three Full-HD Filters with 6-dB Gain

THS7372
www.ti.com
SBOS578 – AUGUST 2011
ELECTRICAL CHARACTERISTICS: V_S+ = +3.3 V
At T_A = +25°C, R_L = 150 Ω to GND, and dc-coupled input/output, unless otherwise noted.
THS7372
PARAMETER
TEST CONDITIONS
MIN
TYP
AC PERFORMANCE: SD (CVBS) CHANNEL
Passband bandwidth
Small- and large-signal bandwidth
Attenuation
–1 dB; V_O = 0.2 V_PP and 2 V_PP
–3 dB; V_O = 0.2 V_PP and 2 V_PP
With respect to 500 kHz⁽²⁾, f = 6.75 MHz
With respect to 500 kHz⁽²⁾, f = 27 MHz
6.6
8.2
8
9.5
–0.9
0.2
42
54
Group delay
f = 100 kHz
78
Group delay variation
f = 5.1 MHz with respect to 100 kHz
11
Channel-to-channel delay
0.3
Differential gain
NTSC/PAL
0.2/0.35
Differential phase
NTSC/PAL
0.35/0.5
Total harmonic distortion
f = 1 MHz, V_O = 1.4 V_PP
–69
100 kHz to 6 MHz, non-weighted
70
Signal-to-noise ratio
100 kHz to 6 MHz, unified weighting
78
Gain
Output impedance
All channels, T_A = +25°C
All channels, T_A = –40°C to +85°C
f = 6.75 MHz
Disabled
5.7
6
5.65
0.7
20 || 3
Return loss
f = 6.75 MHz
47
Crosstalk
f = 1 MHz, SD channel to FHD channels
–82
AC PERFORMANCE: FULL-HD (FHD) CHANNELS
Passband bandwidth
Small- and large-signal bandwidth
Attenuation
–1 dB; V_O = 0.2 V_PP and 2 V_PP
–3 dB; V_O = 0.2 V_PP and 2 V_PP
With respect to 500 kHz⁽²⁾, f = 54 MHz
With respect to 500 kHz⁽²⁾, f = 148 MHz
53
60
60
72
–0.5
0.6
33
40
Group delay
f = 100 kHz
12
Group delay variation
f = 54 MHz with respect to 100 kHz
4.5
Channel-to-channel delay
0.3
Total harmonic distortion
f = 20 MHz, V_O = 1.4 V_PP
–54
100 kHz to 60 MHz, non-weighted
60
Signal-to-noise ratio
100 kHz to 60 MHz, , unified weighting
70
Gain
Output impedance
All channels, T_A = +25°C
All channels, T_A = –40°C to +85°C
f = 60 MHz
Disabled
5.7
6
5.65
4
2 || 3
Return loss
f = 60 MHz
32
Crosstalk
f = 6.75 MHz, FHD channels to SD channel
–68
f = 25 MHz, FHD to FHD channels
–54
TEST
MAX UNITS LEVEL⁽¹⁾
10 MHz
B
11 MHz
B
1.2 dB
B
dB
B
ns
C
ns
C
ns
C
%
C
Degrees
C
dB
C
dB
C
dB
C
6.3 dB
A
6.35 dB
B
Ω
C
kΩ || pF
C
dB
C
dB
C
66 MHz
B
83 MHz
B
2 dB
B
dB
B
ns
C
ns
C
ns
C
dB
C
dB
C
dB
C
6.3 dB
A
6.35 dB
B
Ω
C
kΩ || pF
C
dB
C
dB
C
dB
C
(1) Test levels: (A) 100% tested at +25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization
and simulation only. (C) Typical value only for information.
(2) 3.3-V supply filter specifications are ensured by 100% testing at 5-V supply together with design and characterization.
Copyright © 2011, Texas Instruments Incorporated
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