August 2007 Rev 3 1/13
13
TSH120
2.2V to 5V video buffer with SAG correction
Features
Very low consumption
Standby mode available
Internal reconstruction filter
Internal gain of 6dB
Rail-to-rail output
Tested with +2.5V and +3.3V single supply
Operation supply from +2.2V to +5.5V
SAG correction
Excellent video performance
Differential gain 0.5%
Differential phase 0.5°
Group delay=10ns
Specified for 150Ω load
Input DC level shifter
Min. and max. limits are tested in full
production
Applications
Camera phones
Digital still camera
Digital video camera
Set-top box and DVD video outputs
Description
The TSH120 is a video buffer that includes a
voltage feedback amplifier with an internal gain of
6dB, rail-to-rail output, internal input biasing and
SAG correction. A power down function offers a
sleep mode with ultra low consumption.
The TSH120 also features an internal
reconstruction filter in order to attenuate the
parasitic 27MHz frequency from the clock of the
video DAC.
The TSH120 is a single operator available in a
tiny SC70 plastic package for space saving.
Pin connections
(top view)
T
S
H
1
2
0
T
S
H
1
2
0
1
2
4
3
6
5
OUT
SAG
IN
GND
V
CC
EN
(Enable)
1
2
4
3
6
5
OUT
SAG
IN
GND
V
CC
EN
(Enable)
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Absolute maximum ratings TSH120
2/13
1 Absolute maximum ratings
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC
Supply voltage
(1)
1. All voltage values are measured with respect to the ground pin.
6V
V
in
Input voltage range
(2)
2. The magnitude of input and output voltage must never exceed V
CC
+0.3V.
2V
T
oper
Operating free air temperature range -40 to +105 °C
T
stg
Storage temperature -65 to +150 °C
T
j
Maximum junction temperature 150 °C
R
thja
Thermal resistance junction to ambient 430 °C/W
R
thjc
Thermal resistance junction to case 58 °C/W
P
max
Maximum power dissipation
(3)
for T
j
=150°C
T
a
=+25°C
T
a
=+85°C
3. Short-circuits can cause excessive heating. Destructive dissipation can result from short-circuits on
amplifiers.
290
150
mW
ESD
HBM: human body model
(4)
except pin-4
pin-4
4. Human body model: A 100pF capacitor is charged to the specified voltage, then discharged through a
1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
2
1.5
kV
MM: machine model
(5)
5. Machine model: A 200pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5Ω). This is done for all couples of
connected pin combinations while the other pins are floating. This is a minimum value.
200 V
Latch-up immunity 200 mA
Table 2. Operating conditions
Symbol Parameter Value Unit
V
CC
Supply voltage
(1)
1. Tested in full production at +2.5V and +3.3V single supply voltage.
2.2 to 5.5 V
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TSH120 Electrical characteristics
3/13
2 Electrical characteristics
Table 3. Electrical characteristics for V
CC
= +2.5V and +3.3V, T
amb
= 25°C (unless otherwise
specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit
DC performance
V
dc
Output DC level shift
R
L
= 150Ω 94 129 158 mV
T
min
T
amb
T
max
403 μV/°C
I
ib
Input bias current
V
CC
= +3.3V
T
min
T
amb
T
max
-880 -550
-650
nA
V
CC
= +2.5V
T
min
T
amb
T
max
-840 -550
-620
G Internal voltage gain
V
in
=1V
T
min
T
amb
T
max
5.95 6.1
6.05
6.2
dB
PSRR
Power supply rejection ratio
20 log (ΔV
CC
/ΔV
out
)
ΔV
CC
=±100mV at 1MHz 55 dB
I
CC
Current consumption
No load, V
in
=+0.5V
V
CC
=+3.3V
T
min
T
amb
T
max
5.8
6.7
6.6 mA
No load, V
in
=+0.5V
V
CC
=+2.5V
T
min
T
amb
T
max
5.8
6.7
6.3 mA
Enable/standby (EN pin)
I
STBY
Consumption in standby mode
V
CC
=+3.3V 4
μA
V
CC
=+2.5V 2
V
STBY-low
Standby low level Standby mode +0.3 V
V
STBY-high
Standby high level Enable mode +0.8 V
T
on
Time from standby to enable 5 μs
T
off
Time from enable to standby 5 μs
Dynamic performance and output characteristics
FR Frequency response
V
out
=2V
pp
, R
L
= 150Ω
V
CC
=+3.3V, F=4.5MHz
T
min
T
amb
T
max
-0.4 -0.1
-0.48
0.4
dB
V
out
=2V
pp,
R
L
= 150Ω
V
CC
=+2.5V, F=4.5MHz
0
V
CC
=+3.3V, F=27MHz
T
min
T
amb
T
max
-20 -25
-23
V
OH
High level output voltage
V
CC
=+3.3V, R
L
=150Ω
V
CC
=+2.5V, R
L
=150Ω
3.13
2.36
3.21
2.42
V
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TSH120ICT

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Lifecycle:
New from this manufacturer.
Delivery:
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