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LM2202 Dataheets PDF



Part Number LM2202
Manufacturers National Semiconductor
Logo National Semiconductor
Description 230 MHz Video Amplifier System
Datasheet LM2202 DatasheetLM2202 Datasheet (PDF)

LM2202 230 MHz Video Amplifier System April 1999 LM2202 230 MHz Video Amplifier System General Description The LM2202 is a very high frequency video amplifier system intended for use in high resolution monochrome or RGB color monitor applications. In addition to the wideband video amplifier the LM2202 contains a gated differential input black level clamp comparator for brightness control, a DC controlled attenuator for contrast control and a DC controlled sub contrast attenuator for drive cont.

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LM2202 230 MHz Video Amplifier System April 1999 LM2202 230 MHz Video Amplifier System General Description The LM2202 is a very high frequency video amplifier system intended for use in high resolution monochrome or RGB color monitor applications. In addition to the wideband video amplifier the LM2202 contains a gated differential input black level clamp comparator for brightness control, a DC controlled attenuator for contrast control and a DC controlled sub contrast attenuator for drive control. The DC control for the contrast attenuator is pinned out separately to provide a more accurate control system for RGB color monitor applications. All DC controls offer a high input impedance and operate over a 0V to 4V range for easy interface to bus controlled alignment systems. The LM2202 operates from a nominal 12V supply but can be operated with supply voltages down to 8V for applications that require reduced IC package power dissipation characteristics. n tr, tf = 1.5 ns at VO = 4 VPP n Externally gated comparator for brightness control n 0V to 4V high input impedance DC contrast control ( > 40 dB range) n 0V to 4V high input impedance DC drive control ( ± 3 dB range) n Easy to parallel three LM2202s for optimum color tracking in RGB systems n Output stage clamps to 0.65V and provides up to 9V output voltage swing n Output stage directly drives most hybrid or discrete CRT amplifier stages n Replacement for the LM1202 Applications n n n n High resolution CRT monitors Video switches Video AGC amplifier Wideband amplifier with gain and DC offset control Features n Wideband video amplifier (f−3dB = 230 MHz at VO = 4 VPP) Block and Connection Diagram DS012591-1 Order Number LM2202N or LM2202M See NS Package Number N20A or M20B © 1999 National Semiconductor Corporation DS012591 www.national.com Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage VCC Pins 4, 7, 16 to Ground Pins 5, 13, 15 VCC ≥ VIN Voltage at Any Input Pin (VIN) Video Output Current (I17) Package Power Dissipation at TA = 25˚C (Above 25˚C Derate Based θJA and TJ) 13.5V ≥ GND 28 mA 1.56W Package Thermal Resistance (θJA) N20A M20B Junction Temperature (TJ) Storage Temperature Range (Tstg) Lead Temperature N Package (Soldering, 10 sec.) ESD Susceptibility Human Body Model: 100 pF Discharged through a 1.5k Resistor 68˚C/W 90˚C/W 150˚C −65˚C to +150˚C 265˚C 1.5 kV Operating Ratings (Note 2) Temperature Range Supply Voltage (VCC) −20˚C to +80˚C 8V ≤ VCC ≤ 13.2V DC Electrical Characteristics See Test Circuit (Figure 1), TA = 25˚C, V4 = V7 = V16 = 12V, S1 Open, V19 = 4V, V8 = 4V, V9 = 4V, V14 = 0V unless otherwise noted. Symbol IS 4, 7, 16 V6 V14L V14H I14L I14H I12+ I12− V17L V17H VOS Parameter Total Supply Current Video Input Bias Voltage Clamp Gate Low Input Voltage Clamp Gate High Input Voltage Clamp Gate Low Input Current Clamp Gate High Input Current Clamp Cap Charge Current Clamp Cap Discharge Current Video Output Low Voltage Video Output High Voltage Comparator Input Offset Voltage Clamp Comparator On Clamp Comparator Off V14 = 0V V14 = 12V V12 = 0V V12 = 5V V12 = 0V V12 = 6V V18 − V19 −0.5 0.005 800 −800 0.2 10 15 500 −500 0.65 9 Conditions RLOAD = ∞ (Note 5) Typical (Note 3) 48 2.4 Limit (Note 4) 60 2 0.8 2 Units mA (max) V (min) V (max) V (min) µA µA µA (min) µA (min) V (max) V (min) mV (max) ± 50 AC Electrical Characteristics See Test Circuit (Figure 1), TA = 25˚C, V4 = V7 = V16 = 12V, S1 Closed, V19 = 4V, V8 = 4V, V9 = 4V, V14 = 0V unless otherwise noted. Symbol RIN AV max ∆AV 2V ∆AV 0.5V ∆ Drive THD f−3 dB tr tf Parameter Video Amplifier Input Resistance Video Amplifier Gain Attenuation at 2V Attentuation at 0.5V ∆ Gain Range Video Amplifier Distortion Video Amplifier Bandwidth (Note 6) Output Rise Time (Note 6) Output Fall Time (Note 6) Conditions fIN = 12 kHz V8 = 4V, V9 = 4V Ref: AV max, V8 = 2V Ref: AV max, V8 = 0.5V V9 = 0V to 4V VO = 4 VPP, fIN = 12 kHz VO = 4 VPP VO = 4 VPP VO = 4 VPP Typical (Note 3) 20 20 −6 −38 6 0.5 230 1.5 1.5 2 2 −23 5 1 16 Limit (Note 4) Units kΩ V/V (min) dB dB (min) dB (min) % (max) MHz ns (max) ns (max) Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Note 2: Operating Ratings indicate conditions for which the device is functional but do not guarantee specific performance limits. For guaranteed specifications and test conditions see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 3: Typical specifications are specified at +25˚C and represent the most likely parametric norm. Note 4: Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 5: The supply current specified is the quiescent current .


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