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LM1208

Features: Three wideband video amplifiers 130 MHz (LM1208) @ −3 dB (4 VPP output)· Matched (±0.1 dB or 1.2%) attenuators for contrast control· ESD susceptibility above 3 kV· Three externally gated single ended input comparators for cutoff and brightness control· 0V to 4V, high input impedanc...

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SeekIC No. : 004394578 Detail

LM1208: Features: Three wideband video amplifiers 130 MHz (LM1208) @ −3 dB (4 VPP output)· Matched (±0.1 dB or 1.2%) attenuators for contrast control· ESD susceptibility above 3 kV· Three externally g...

LM1208 Data Sheet

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Part Number:
LM1208
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Three wideband video amplifiers 130 MHz (LM1208) @   −3 dB (4 VPP output)
· Matched (±0.1 dB or 1.2%) attenuators for contrast control
· ESD susceptibility above 3 kV
· Three externally gated single ended input comparators for cutoff and brightness control
· 0V to 4V, high input impedance DC contrast control (>40 dB range)
· 0V to 4V, high input impedance DC full range gain control (Drive) for each video channel (> 40 dB range)
· Spot killer, blanks output when VCC < 10.6V
· Capable of 7 VPP output swing (slight reduction in bandwidth)
·Output stage blanking
· Output stage directly drives most hybrid or discrete CRT drivers


Application

· High resolution RGB CRT monitors
· Video AGC amplifiers
· Wideband amplifiers with gain and DC offset controls
·Interface amplifiers for LCD or CCD systems


Specifications

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
Pins 3, 11, 22, 23, 25 (Note 3)...................................15V
Peak Video Output Source Current
(Any One Amp) Pins 17, 20 or 26........................... 28 mA
Voltage at Any Input Pin (VIN) ...............VCC VIN GND
Power Dissipation (PD)
(Above 25°C Derate Based on qJA
and TJ)..................................................................... 2.5W
Thermal Resistance (JA) ....................................50°C/W
Junction Temperature (TJ).................................... 150°C
ESD Susceptibility (Note 4)....................................... 3 kV
ESD Machine Model (Note 15) .................................350V
Storage Temperature.......................... −65°C to 150°C
Lead Temperature
(Soldering, 10 sec.) ..............................................265°C


Description

The LM1208 is a very high frequency video amplifier system intended for use in high resolution RGB monitor applications. In addition to the three matched video amplifiers, the LM1208 contains three gated single ended input black level clamp comparators for brightness control, three matched DC controlled attenuators for contrast control, and three DC controlled sub-contrast attenuators providing independent full range gain control in each channel for wide range white balance. All DC control inputs offer high input impedance and an operation range from 0V to 4V for easy interface to bus controlled alignment systems. The LM1208 also contains a blanking circuit which clamps the video output voltage during blanking to within 0.1V above ground. This feature provides blanking capability at the cathodes of the CRT. A spot killer is provided for CRT phosphor protection during power-down.




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