THS7313 Datasheet, PDF (5/48 Pages) Texas Instruments – 3-Channel Low Power SDTV Video Amplifier with I2C Control, 6-dB Gain, SAG Correction, 2:1 Input MUX, and Selectable Input Bias Modes

THS7313
www.ti.com
SLOS483 – NOVEMBER 2005
ELECTRICAL CHARACTERISTICS, V_S+ = 5 V
R_L = 150 Ω to GND, Input Bias = dc, SAG pin shorted to the output pin (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TYP
25°C
25°C
OVERTEMPERATURE
0°C to 70°C
–40°C to
85°C
UNITS
AC PERFORMANCE
Small-signal bandwidth
(–3 dB)
V_O– 0.2 V_PP(1)
8
6.7/9.3
6.55/9.45
6.5/9.5
MHz
Large-signal bandwidth
(–3 dB)
V_O– 2 V_PP ⁽¹⁾
8
MHz
Group delay
f = 100 kHz
67
ns
Group delay variation with
respect to 100 kHz
f = 5.1 MHz
13.5
ns
Channel-to-Channel group
delay variation
f = 5.1 MHz
0.5
ns
Attenuation with respect to ^{f = 5.75 MHz}
100 kHz
f = 27 MHz
0.5
-0.2 / 2
-0.4 / 2.2
-0.5 / 2.3
dB
48
36
35
34
dB
Mute feed-thru
f = 1 MHz
-80
dB
Differential gain
NTSC/PAL
0.08%/0.16
%
Differential phase
NTSC/PAL
0.18°/0.18°
Total harmonic distortion
f = 1 MHz, V_O = 2 V_PP
–67
dB
Signal to noise ratio
Unified weighting 100 kHz to 6 MHz
82
dB
Channel-to-Channel
f = 1 MHz
–64
dB
Crosstalk
MUX Isolation
f = 5.1 MHz
73
dB
AC gain – All channels
f = 100 kHz
6
5.7/6.3
5.65/6.35
5.65/6.35
dB
Output impedance
f = 10MHz
0.7
Ω
DC PERFORMANCE
Output offset voltage
Bias = dc
30
90
95
95
mV
Average offset voltage drift Bias = dc
20
µV/°C
Bias output voltage
Bias = dc + 135 mV, V_I = 0 V
Bias = ac
290
235/345
215/360
200/375
mV
2.5
2.3/2.7
2.25/2.75
2.25/2.75
V
Sync tip clamp output
voltage
Bias = ac STC
300
230/375
215/385
210/390
mV
Input bias current
Bias = dc - implies Ib out of the pin
–0.6
–4
–5
–5
µA
Average bias current drift Bias = dc
10
nA/°C
Bias = ac STC, low bias
1.9
0.6/3.3
0.5/3.5
0.4/3.6
µA
Sync tip clamp bias current Bias = ac STC, mid bias
6
4.3/8.2
4.1/8.4
4/8.5
µA
Bias = ac STC, high bias
8.2
6.2/10.8
6/11
5.9/11.1
µA
INPUT CHARACTERISTICS
Input voltage range
Bias = dc - limited by output
0/2.4
0/2.35
0/2.3
0/2.3
V
Bias = ac bias mode
19
kΩ
Input resistance
Bias = dc, dc + 135 mV, ac STC
3
MΩ
Input capacitance
2
pF
OUTPUT CHARACTERISTICS
High output voltage swing
Low output voltage swing
R_L = 150 Ω to midrail
R_L = 150 Ω to GND
R_L = 75 Ω to midrail
R_L = 75 Ω to GND
R_L = 150 Ω to midrail
R_L = 150 Ω to GND
R_L = 75 Ω to Midrail
R_L = 75 Ω to GND
4.8
4.4
4.3
4.65
4.2
4.1
4.7
4.3
4.2
4.4
4.1
4
0.2
0.34
0.37
0.1
0.23
0.26
0.35
0.46
0.5
0.1
0.23
0.26
4.3
V
4.1
V
4.2
V
4
V
0.37
V
0.27
V
0.5
V
0.27
V
MIN/MAX
Min/Max
Min/Max
Min
Min/Max
Max
Min/Max
Min/Max
Min/Max
Max
Min/Max
Min/Max
Min/Max
Min/Max
Min
Min
Min
Min
Max
Max
Max
Max
(1) The Min/Max values listed are specified by design only.
5