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FEATURES
APPLICATIONS
DESCRIPTION
In A
Video
DAC /
Encoder
3.3 V
3.3 V
LPF
AC
Sync
TIP
Clamp
DC
+
-
1 kW
878 W
X1
DC +
135 mV
MUTE
2
:
1
675 W
150 W
AC
-
BIAS
In B
External
Input
SDA
I2C-A1
SCL
I2C-A0
8 MHz
Out
SAG
47 F
m
33 F
m
75 W
75 W
Video
Out
75 W
R
THS7313
SLOS483 NOVEMBER 2005
3-Channel Low Power SDTV Video Amplifier with I
2
C Control, 6-dB Gain, SAG
Correction, 2:1 Input MUX, and Selectable Input Bias Modes
Set Top Box Output Video Buffering
3 SDTV Video Amplifiers for CVBS, S-Video,
Y'P'
B
P'
R
480i/576i, or G'B'R' Video Systems
PVR/DVDR Output Buffering
USB/Portable Low Power Video Buffering
I
2
CTM Control of All Functions on Each
Channel
Integrated Low-Pass Filters
Fabricated
using
the
new
complimentary
5
th
Order, 8-MHz Butterworth
silicon-germanium (SiGe) BiCom-III process, the
0.5-dB Attenuation at 5.5 MHz
THS7313 is a low-power, single-supply 2.7-V to 5-V,
48-dB Attenuation at 27 MHz
3-channel integrated video buffer. It incorporates a 5
th
Selectable Input Bias Modes
order
Butterworth
filter
which
is
useful
as
a
digital-to-analog converter (DAC) reconstruction filter
AC-Coupled with Sync-Tip Clamp
or an analog-to-digital converter (ADC) anti-aliasing
AC-Coupled with Bias
filter. The 8-MHz filter is a perfect choice for SDTV
DC-Coupled with 135-mV Input Shift
video which includes composite (CVBS), S-Video,
Y'U'V', G'B'R', and Y'P'
B
P'
R
480i/576i.
DC-Coupled
2:1 Input MUX Allows Multiple Input Sources
Each channel of the THS7313 is individually I
2
C
configurable for all functions which makes it flexible
Built-in 6-dB Gain (2 V/V)
for any application. Its rail-to-rail output stage allows
SAG Correction Capable
for both ac and dc coupling applications. The 6-dB
2.7-V to 5-V Single Supply Operation
gain along with the built-in SAG correction allows for
maximum flexibility as an output video buffer.
Individual Disable (<1
A) and Mute Control
Rail-to-Rail Output:
The 16.6 mA total quiescent current at 3.3 V (55 mW)
makes it an excellent choice for USB powered or
Output Swings within 100 mV from the Rails
portable video applications. While fully disabled, the
Which Allows AC or DC Output Coupling
THS7313 consumes less than 1
A.
Able to Drive up to 2 Video Lines 75
The THS7313 is available in a small lead-free and
Low 16.6-mA (3.3 V) Total Quiescent Current
RoHS compliant TSSOP-20 package.
Low Differential Gain/Phase of 0.07% / 0.12
Figure 1. 3.3 V Single-Supply DC-Input/AC-Video Output System w/SAG Correction
(1 of 3 Channels Shown)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
I
2
C is a trademark of Philips Electronics.
PRODUCTION DATA information is current as of publication date.
Copyright 2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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DESCRIPTION (CONTINUED)
ABSOLUTE MAXIMUM RATINGS
DISSIPATION RATINGS
THS7313
SLOS483 NOVEMBER 2005
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated
circuits be handled with appropriate precautions. Failure to observe proper handling and installation
procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
As part of the THS7313 flexibility, the 2:1 MUX input can be selected for ac or dc coupled inputs. The ac coupled
modes include a sync-tip clamp option for CVBS or Y' signals, or a fixed bias for the C/P'
B
/P'
R
channels. The dc
input options include a dc input or a dc + 135-mV input offset shift to allow for a full sync dynamic range at the
output with 0-V input.
PACKAGING/ORDERING INFORMATION
TRANSPORT MEDIA,
PACKAGED DEVICES
(1)
PACKAGE TYPE
QUANTITY
THS7313PW
Rails, 70
TSSOP-20
THS7313PWR
Tape and reel, 2000
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at
www.ti.com
over operating free-air temperature range (unless otherwise noted)
(1)
UNIT
V
SS
Supply voltage, V
S+
to GND
5.5 V
V
I
Input voltage
0.4V to V
S+
I
O
Output current
125 mA
Continuous power dissipation
See Dissipation Rating Table
T
J
Maximum junction temperature, any condition
(2)
150
C
T
J
Maximum junction temperature, continuous operation, long term reliability
(3)
125
C
T
stg
Storage temperature range
65
C to 150
C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
300
C
HBM
2000 V
ESD ratings
CDM
750 V
MM
100 V
(1)
Stresses above those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied Exposure to absolute maximum rated conditions for extended periods may degrade device reliability.
(2)
The absolute maximum junction temperature under any condition is limited by the constraints of the silicon process.
(3)
The absolute maximum junction temperature for continuous operation is limited by the package constraints. Operation above this
temperature may result in reduced reliability and/or lifetime of the device.
POWER RATING
(1)
JC
JA
(T
J
= 125
C)
PACKAGE
(
C/W)
(
C/W)
T
A
= 25
C
T
A
= 85
C
TSSOP 20 (PW)
32.3
83
(2)
1.2 W
0.48 W
(1)
Power rating is determined with a junction temperature of 125
C. This is the point where distortion starts to substantially increase and
long-term reliability starts to be reduced. Thermal management of the final PCB strives to keep the junction temperature at or below
125
C for best performance and reliability.
(2)
This data was taken with the JEDEC High-K test PCB. For the JEDEC low-K test PCB, the
JA
is 125.8
C.
2
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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS, V
S+
= 3.3 V
THS7313
SLOS483 NOVEMBER 2005
MIN
NOM
MAX
UNIT
V
SS
Supply voltage, V
S+
2.7
5
V
T
A
Ambient temperature
40
85
C
R
L
= 150
to GND, Input Bias = dc, SAG pin shorted to the output pin (unless otherwise noted)
TYP
OVERTEMPERATURE
PARAMETER
TEST CONDITIONS
40
C to
25
C
25
C
0
C to 70
C
UNITS
MIN/MAX
85
C
AC PERFORMANCE
Small-signal bandwidth
V
O
0.2 V
PP
(1)
8
6.7/9.3
6.55/9.45
6.5/9.5
MHz
Min/Max
(3 dB)
Large-signal bandwidth
V
O
2 V
PP
(1)
8
MHz
(3 dB)
Group delay
f = 100 kHz
63
ns
Group delay variation with
f = 5.1 MHz
13
ns
respect to 100 kHz
Group delay matching
Channel-to-Channel
0.5
ns
f = 5.75 MHz
0.5
-0.2 / 2
-0.4 / 2.2
-0.5 / 2.3
dB
Min/Max
Attenuation with respect to
100 kHz
f = 27 MHz
48
36
35
34
dB
Min
Mute feed-thru
f = 1 MHz
-80
dB
Differential gain
NTSC/PAL
0.07%/0.15
%
Differential phase
NTSC/PAL
0.12
/0.1
Total harmonic distortion
f = 1 MHz, V
O
= 2 V
PP
62
dB
Signal to noise ratio
Unified weighting 100 kHz to 6 MHz
82
dB
Channel-to-Channel
f = 1 MHz
63
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
Min/Max
Output impedance
f = 10 MHz
0.75
DC PERFORMANCE
Output offset voltage
Bias = dc
35
90
95
95
mV
Max
Average offset voltage drift
Bias = dc
20
V/
C
Bias = dc + 135 mV, V
I
= 0 V
290
235/345
215/360
200/375
mV
Min/Max
Bias output voltage
Bias = ac
1.65
1.5/1.8
1.45/1.85
1.45/1.85
V
Min/Max
Sync tip clamp output
Bias = ac STC
290
210/370
200/380
195/385
mV
Min/Max
voltage
Input bias current
Bias = dc - implies Ib out of the pin
0.6
4
5
5
A
Max
Average bias current drift
Bias = dc
10
nA/
C
Bias = ac STC, Low bias
1.8
0.6/3.3
0.5/3.5
0.4/3.6
A
Min/Max
Sync tip clamp bias current
Bias = ac STC, Mid bias
5.8
4.3/8.2
4.1/8.4
4/8.5
A
Min/Max
Bias = ac STC, High bias
7.8
6.2/10.8
6/11
5.9/11.1
A
Min/Max
INPUT CHARACTERISTICS
Input voltage range
Bias = dc - limited by output
0/1.57
0/1.52
0/1.47
0/1.47
V
Min/Max
Bias = ac bias mode
19
k
Input resistance
Bias = dc, dc + 135 mV, ac STC
3
M
Input capacitance
2
pF
OUTPUT CHARACTERISTICS
R
L
= 150
to Midrail
3.15
2.9
2.8
2.8
V
Min
R
L
= 150
to GND
3.05
2.85
2.75
2.75
V
Min
High output voltage swing
R
L
= 75
to Midrail
3.05
2.8
2.7
2.7
V
Min
R
L
= 75
to GND
2.9
2.65
2.55
2.55
V
Min
(1)
The Min/Max values listed are specified by design only.
3
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THS7313
SLOS483 NOVEMBER 2005
ELECTRICAL CHARACTERISTICS, V
S+
= 3.3 V (continued)
R
L
= 150
to GND, Input Bias = dc, SAG pin shorted to the output pin (unless otherwise noted)
TYP
OVERTEMPERATURE
PARAMETER
TEST CONDITIONS
40
C to
25
C
25
C
0
C to 70
C
UNITS
MIN/MAX
85
C
R
L
= 150
to Midrail
0.14
0.24
0.27
0.28
V
Max
R
L
= 150
to GND
0.09
0.17
0.2
0.21
V
Max
Low output voltage swing
R
L
= 75
to Midrail
0.24
0.33
0.36
0.37
V
Max
R
L
= 75
to GND
0.09
0.17
0.2
0.21
V
Max
R
L
= 10
to Midrail, sourcing
70
45
42
40
mA
Min
Output current
R
L
= 10
to Midrail, sinking
70
45
42
40
mA
Min
POWER SUPPLY
Maximum operating voltage
3.3
5.5
5.5
5.5
V
Max
Minimum operating voltage
3.3
2.6
2.6
2.6
V
Min
Maximum quiescent current
Per channel V
I
= 200 mV
6
7.2
7.4
7.5
mA
Max
Minimum quiescent current
Per channel V
I
= 200 mV
6
4.8
4.6
4.5
mA
Min
Total quiescent current
All channels ON, V
I
= 200 mV
(2)
16.6
mA
Power supply rejection
V
S+
= 3.5 V to 3.1 V
59
37
35
35
dB
Min
(+PSRR)
DISABLE CHARACTERISTICS
Quiescent current
All 3 channels disabled
(3)
0.1
A
Turn-on time delay (t
ON
)
5
s
Time reaches 50% of final value after I
2
C
control is completed
Turn-on time delay (t
OFF
)
2
s
(2)
Due to sharing of internal bias circuitry, the quiescent current, with all channels operating, is less than the single individual channel
quiescent current channels added together.
(3)
Note that the I
2
C circuitry is still active while in disable mode. The current shown has no activity with the THS7313 I
2
C circuitry.
4
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ELECTRICAL CHARACTERISTICS, V
S+
= 5 V
THS7313
SLOS483 NOVEMBER 2005
R
L
= 150
to GND, Input Bias = dc, SAG pin shorted to the output pin (unless otherwise noted)
TYP
OVERTEMPERATURE
PARAMETER
TEST CONDITIONS
40
C to
25
C
25
C
0
C to 70
C
UNITS
MIN/MAX
85
C
AC PERFORMANCE
Small-signal bandwidth
V
O
0.2 V
PP
(1)
8
6.7/9.3
6.55/9.45
6.5/9.5
MHz
Min/Max
(3 dB)
Large-signal bandwidth
V
O
2 V
PP
(1)
8
MHz
(3 dB)
Group delay
f = 100 kHz
67
ns
Group delay variation with
f = 5.1 MHz
13.5
ns
respect to 100 kHz
Channel-to-Channel group
f = 5.1 MHz
0.5
ns
delay variation
f = 5.75 MHz
0.5
-0.2 / 2
-0.4 / 2.2
-0.5 / 2.3
dB
Min/Max
Attenuation with respect to
100 kHz
f = 27 MHz
48
36
35
34
dB
Min
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
Min/Max
Output impedance
f = 10MHz
0.7
DC PERFORMANCE
Output offset voltage
Bias = dc
30
90
95
95
mV
Max
Average offset voltage drift
Bias = dc
20
V/
C
Bias = dc + 135 mV, V
I
= 0 V
290
235/345
215/360
200/375
mV
Min/Max
Bias output voltage
Bias = ac
2.5
2.3/2.7
2.25/2.75
2.25/2.75
V
Min/Max
Sync tip clamp output
Bias = ac STC
300
230/375
215/385
210/390
mV
Min/Max
voltage
Input bias current
Bias = dc - implies Ib out of the pin
0.6
4
5
5
A
Max
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
A
Min/Max
Sync tip clamp bias current
Bias = ac STC, mid bias
6
4.3/8.2
4.1/8.4
4/8.5
A
Min/Max
Bias = ac STC, high bias
8.2
6.2/10.8
6/11
5.9/11.1
A
Min/Max
INPUT CHARACTERISTICS
Input voltage range
Bias = dc - limited by output
0/2.4
0/2.35
0/2.3
0/2.3
V
Min/Max
Bias = ac bias mode
19
k
Input resistance
Bias = dc, dc + 135 mV, ac STC
3
M
Input capacitance
2
pF
OUTPUT CHARACTERISTICS
R
L
= 150
to midrail
4.8
4.4
4.3
4.3
V
Min
R
L
= 150
to GND
4.65
4.2
4.1
4.1
V
Min
High output voltage swing
R
L
= 75
to midrail
4.7
4.3
4.2
4.2
V
Min
R
L
= 75
to GND
4.4
4.1
4
4
V
Min
R
L
= 150
to midrail
0.2
0.34
0.37
0.37
V
Max
R
L
= 150
to GND
0.1
0.23
0.26
0.27
V
Max
Low output voltage swing
R
L
= 75
to Midrail
0.35
0.46
0.5
0.5
V
Max
R
L
= 75
to GND
0.1
0.23
0.26
0.27
V
Max
(1)
The Min/Max values listed are specified by design only.
5
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