THS7376 Datasheet, PDF (6/61 Pages) Texas Instruments – 4-Channel Video Amplifier with One SD and Three HD 8th-Order Filters with 6-dB Gain

THS7376
SBOS692 – JUNE 2013
www.ti.com
ELECTRICAL CHARACTERISTICS: V_S+ = +5 V
At T_A = +25°C, R_L = 150 Ω to GND, C_LOAD = 5 pF, filter mode, and dc-coupled input and output, unless otherwise noted.
See Figure 123 and Figure 124.
PARAMETER
TEST CONDITIONS
TEST
LEVEL
MIN
TYP
MAX UNITS
(1)
AC PERFORMANCE: SD (CVBS) CHANNEL
BW_(PB)
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
7.5
9
11.5 MHz
B
8.2
10
12 MHz
B
–1
–0.1
0.9 dB
B
38
46
dB
B
Group delay
f = 100 kHz
68
ns
C
Group delay variation
f = 5.1 MHz with respect to 100 kHz
9.5
ns
C
Differential gain
NTSC
PAL
0.4%
C
0.4%
C
Differential phase
NTSC
PAL
0.2
Degrees
C
0.3
Degrees
C
THD
SNR
Total harmonic distortion
Signal-to-noise ratio
f = 1 MHz, V_O = 1.4 V_PP
f = 6 MHz, V_O = 1.4 V_PP
100 kHz to 6 MHz, non-weighted
100 kHz to 6 MHz, unified weighting
–70
dB
C
–63
dB
C
70
dB
C
78
dB
C
G
Gain
Output impedance
Return loss⁽³⁾
All channels, T_A = +25°C
All channels, T_A = –40°C to +85°C
f = 6.75 MHz
Disabled
f = 6.75 MHz
5.7
6
6.3 dB
A
5.65
6.35 dB
B
0.6
Ω
C
20 || 3
kΩ || pF
C
48
dB
C
Crosstalk
f = 1 MHz, SD channel to HD channels
–88
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 a 5-V supply with design and characterization.
(3) Return loss is calculated assuming an ideal 75-Ω external series resistor along with the THS7376 channel output impedance into an
ideal 75-Ω end-termination resistance.
6
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