THS7347_15 Datasheet, PDF (6/33 Pages) Texas Instruments – 3-Channel RGBHV Video Buffer with I2C Control, 2:1 Input Mux, Monitor Pass-Through, and Selectable Input Bias Modes

THS7347
SLOS531B – MAY 2007 – REVISED OCTOBER 2011
www.ti.com
ELECTRICAL CHARACTERISTICS, V_A = V_DD = 5 V
R_L = 150Ω || 5pF to GND for Monitor Output, 19kΩ || 8pF Load to GND for Buffer Output, SAG pin shorted to Monitor Output
Pin, unless otherwise noted.
TYP
OVER TEMPERATURE
PARAMETER
TEST CONDITIONS
+25°C
+25°C
0°C to
+70°C
–40°C to
+85°C
MIN/MAX/
UNIT
TYP
AC PERFORMANCE
Small-signal
bandwidth (–3 dB)
Buffer output
Monitor output
V_O = 0.2 V_PP
550
500
MHz
Typ
MHz
Typ
Buffer output
450
–1 dB flatness
Monitor output
V_O = 0.2 V_PP
400
MHz
Typ
MHz
Typ
Large-signal
bandwidth (–3 dB)
Slew rate
Group delay at
100 kHz
Buffer output
Monitor output
Buffer output
Monitor output
Buffer output
Monitor output
V_O = 1 V_PP
V_O = 2 V_PP
V_O = 1 V_PP
V_O = 2 V_PP
525
325
1200
1350
1.15
1.15
MHz
Typ
MHz
Typ
V/μs
Typ
V/μs
Typ
ns
Typ
ns
Typ
Differential gain
Buffer output
Monitor output
NTSC/PAL
0.05/0.05
0.1/0.1
%
Typ
%
Typ
Differential phase
Buffer output
Monitor output
NTSC/PAL
0.05/0.05
0.05/0.05
degrees
Typ
degrees
Typ
Total harmonic
Buffer output
V_O = 1 V_PP
–71
distortion f = 1 MHz _{Monitor output}
V_O = 2 V_PP
–67
Buffer output
63
Signal-to-noise ratio
No weighting, up to 100 MHz
Monitor output
65
dB
Typ
dB
Typ
dB
Typ
dB
Typ
Channel-to-channel ^{Buffer output}
crosstalk
Monitor output
f = 100 MHz
–40
–36
dB
Typ
dB
Typ
Buffer output
64
MUX Isolation
f = 100 MHz
Monitor output
66
dB
Typ
dB
Typ
Gain
Settling time
Buffer output
Monitor output
Buffer output
Monitor output
f = 100 kHz; V_O = 1 V_PP
f = 100 kHz; V_O = 2 V_PP
V_IN = 1 V_PP; 0.5% settling
0
dB
Typ
6
5.8/6.25 5.75/6.3 5.75/6.35
dB
Min/Max
6
ns
Typ
6
ns
Typ
Buffer output
0.3
Output impedance
f = 10 MHz
Monitor output
0.4
Ω
Typ
Ω
Typ
DC PERFORMANCE
Buffer output
Output offset voltage
Monitor output
Bias = dc
15
±80
±85
±85
mV
Max
20
±120
±125
±125
mV
Max
Average offset
voltage drift
Buffer output
Monitor output
Bias = dc
20
μV/°C
Typ
20
μV/°C
Typ
Bias output voltage
Buffer output
Monitor output
Bias = dc + shift, V_IN = 0 V
Bias = ac
Bias = dc + shift, V_IN = 0 V
Bias = ac
265
185/370 175/380 170/385
mV
Min/Max
1.5
1.3/1.65 1.25/1.7 1.25/1.7
V
Min/Max
235
145/345 135/355 130/360
mV
Min/Max
2.65
2.5/2.8 2.45/2.85 2.45/2.85
V
Min/Max
Sync tip clamp
voltage
Buffer output
Monitor output
Bias = ac STC, clamp voltage
295
205/410 200/415 195/420
300
200/400 195/405 190/410
mV
Min/Max
mV
Min/Max
Input bias current
Average bias current drift
Bias = dc; (–) implies I_B out of the pin
Bias = dc
–1.4
–3.0
–3.5
–3.5
μA
Max
10
nA/°C
Typ
Bias = ac STC, low bias
2.4
0.9/3.9 0.8/4.0
0.7/4.1
μA
Min/Max
Sync tip clamp bias current
Bias = ac STC, mid bias
6.2
3.9/8.4 3.8/8.6
3.7/8.7
μA
Min/Max
Bias = ac STC, high bias
8.6
6/11.2 5.8/11.4 5.7/11.5
μA
Min/Max
6
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