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Part Number: TLS1255
Description: The TLS1255 is a wide-band video preamplifier system intended for high-resolution red-green-blue (RGB)...
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TLS1255
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DataSheet
General Description
TLS1255 General Description
The TLS1255 is a wide-band video preamplifier system intended for high-resolution red-green-blue (RGB) color monitors with color-saturation control features. The saturation of a color refers to the degree of chroma or purity, or the degree of freedom from admixture with white. In addition to the RGB preamplifier function, the TLS1255 provides color-saturation control and gain control at the video system outputs. Each video amplifier (R, G, and B) contains a gain set for adjusting maximum system gain (AV = 6 dB). The TLS1255 provides a digital level-operated contrast, brightness, color, and gain adjustment. The video-output stages from TLS1255 directly drive CRT power amplifiers. The system has been designed to operate from a 12-V supply with all digital level controls operating over a 0-V to 4-V range to make the interface to serial digital buses possible. The TLS1255 also contains a blanking circuit that clamps the video output voltage to within 0.2 V of ground. The mixer circuit required for the OSD pplication is also integrated into the TLS1255, which makes the design of video boards and other applications easier.
The TLS1255 is characterized for operation from 0°C to 70°C.
TLS1255 Maximum Ratings
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.5 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to VCC
Video output current, IO (per channel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 mA
Total power dissipation at (or below) 25°C free-air temperature (see Note 2) . . . . . . . . . . . . . . . . . . . . . 2.37 W
Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
† Stresses beyond 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 affect device reliability.
NOTES:
1. All VCC terminals must be externally wired together to prevent internal damage during VCC power-on/-off cycles.
2. For operation above 25°C free-air temperature, derate linearly to 1.52 W at the rate of 19 mW/°C.
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to VCC
Video output current, IO (per channel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 mA
Total power dissipation at (or below) 25°C free-air temperature (see Note 2) . . . . . . . . . . . . . . . . . . . . . 2.37 W
Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
† Stresses beyond 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 affect device reliability.
NOTES:
1. All VCC terminals must be externally wired together to prevent internal damage during VCC power-on/-off cycles.
2. For operation above 25°C free-air temperature, derate linearly to 1.52 W at the rate of 19 mW/°C.
TLS1255 Features
`Wide Bandwidth . . . Typ 100 MHz at 3 dB
` Color Saturation Control Features
` Digital Level Control (0 V to 4 V) for Contrast, Color, and Brightness
` Mixer Function for OSD Applications
` Blanking Function for On-Screen Display (OSD) Applications
` Fewer Peripheral Components Required
` Low-Impedance Output Driver
` Color Saturation Control Features
` Digital Level Control (0 V to 4 V) for Contrast, Color, and Brightness
` Mixer Function for OSD Applications
` Blanking Function for On-Screen Display (OSD) Applications
` Fewer Peripheral Components Required
` Low-Impedance Output Driver
TLS1255 Connection Diagram
TLS1255
PDF/DataSheet Download
- Datasheet: TLS1255
- File Size: 126914 KB
- Manufacturer:
- Click here to Download
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- ·TLS001
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- ·TLS010
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- ·TLS015
- LITTELFUSE [Littelfuse]
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