Datasheet

THS7372
www.ti.com SBOS578 –AUGUST 2011
ELECTRICAL CHARACTERISTICS: V
S+
= +5 V
At T
A
= +25°C, R
L
= 150 Ω to GND, and dc-coupled input/output, unless otherwise noted.
THS7372
TEST
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS LEVEL
(1)
AC PERFORMANCE: SD (CVBS) CHANNEL
Passband bandwidth –1 dB; V
O
= 0.2 V
PP
and 2 V
PP
6.6 8.2 10 MHz B
Small- and large-signal bandwidth –3 dB; V
O
= 0.2 V
PP
and 2 V
PP
8 9.5 11 MHz B
With respect to 500 kHz, f = 6.75 MHz –0.9 0.25 1.2 dB A
Attenuation
With respect to 500 kHz, f = 27 MHz 42 54 dB A
Group delay f = 100 kHz 78 ns C
Group delay variation f = 5.1 MHz with respect to 100 kHz 11 ns C
Channel-to-channel delay 0.3 ns C
Differential gain NTSC/PAL 0.2/0.35 % C
Differential phase NTSC/PAL 0.35/0.5 Degrees C
Total harmonic distortion f = 1 MHz, V
O
= 1.4 V
PP
–71 dB C
100 kHz to 6 MHz, non-weighted 70 dB C
Signal-to-noise ratio
100 kHz to 6 MHz, unified weighting 78 dB C
All channels, T
A
= +25°C 5.7 6 6.3 dB A
Gain
All channels, T
A
= –40°C to +85°C 5.65 6.35 dB B
f = 6.75 MHz 0.7 Ω C
Output impedance
Disabled 20 || 3 kΩ || pF C
Return loss f = 6.75 MHz 47 dB C
Crosstalk f = 1 MHz, SD channel to FHD channels –82 dB C
AC PERFORMANCE: FULL-HD (FHD) CHANNELS
Passband bandwidth –1 dB; V
O
= 0.2 V
PP
and 2 V
PP
53 60 66 MHz B
Small- and large-signal bandwidth –3 dB; V
O
= 0.2 V
PP
and 2 V
PP
60 72 83 MHz B
With respect to 500 kHz, f = 54 MHz –0.5 0.4 2 dB A
Attenuation
With respect to 500 kHz, f = 148 MHz 33 40 dB A
Group delay f = 100 kHz 12 ns C
Group delay variation f = 54 MHz with respect to 100 kHz 4.5 ns C
Channel-to-channel delay 0.3 ns C
Total harmonic distortion f = 20 MHz, V
O
= 1.4 V
PP
–50 dB C
100 kHz to 60 MHz, non-weighted 60 dB C
Signal-to-noise ratio
100 kHz to 60 MHz, unified weighting 70 dB C
All channels, T
A
= +25°C 5.7 6 6.3 dB A
Gain
All channels, T
A
= –40°C to +85°C 5.65 6.35 dB B
f = 60 MHz 4 Ω C
Output impedance
Disabled 2 || 3 kΩ || pF C
Return loss f = 60 MHz 32 dB C
f = 6.75 MHz, FHD channels to SD channel –68 dB C
Crosstalk
f = 25 MHz, FHD channels to FHD channels –54 dB C
DC PERFORMANCE
V
IN
= 0 V, SD channel 200 305 400 mV A
Biased output voltage
V
IN
= 0 V, FHD channels 200 300 400 mV A
Input voltage range DC input, limited by output –0.1/2.3 V C
V
IN
= –0.1 V, SD channel 140 200 μA A
Sync-tip clamp charge current
V
IN
= –0.1 V, FHD channels 280 400 μA A
Input impedance 800 || 2 kΩ || pF 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.
Copyright © 2011, Texas Instruments Incorporated 5