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LT1399 Datasheet(PDF) 1 Page - Linear Technology |
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LT1399 Datasheet(HTML) 1 Page - Linear Technology |
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1 / 16 page  LT6555 1 6555f APPLICATIO S DESCRIPTIO FEATURES TYPICAL APPLICATIO The LT ®6555 is a high speed triple 2:1 video multiplexer with an internally fixed gain of 2. The individual amplifiers are optimized for performance with a double terminated 75 Ω video load and feature a –3dB 2VP-P bandwidth of 450MHz, making them ideal for driving very high resolu- tion video signals. Separate power supply pins for each amplifier boost channel separation to 72dB, allowing the LT6555 to excel in many high speed applications. While the performance of the LT6555 is optimized for dual supply operation, it can also be operated with a single supply as low as 4.5V. Using dual 5V supplies, each amplifier draws only 9mA. When disabled, the amplifiers draw less than 500 µA and the outputs become high impedance. The LT6555 is manufactured on Linear Technology’s proprietary low voltage complementary bipolar process and is available in 24-lead SSOP and ultra-compact 24-lead QFN packages. ■ RGB Amplifiers ■ UXGA Video Multiplexing ■ LCD Projectors ■ 650MHz –3dB Small Signal Bandwidth ■ 450MHz –3dB 2VP-P Large-Signal Bandwidth ■ 120MHz ±0.1dB Bandwidth ■ High Slew Rate: 2200V/ µs ■ Fixed Gain of 2; No External Resistors Required ■ 72dB Channel Separation at 10MHz ■ 50dB Channel Separation at 100MHz ■ –80dBc 2nd Harmonic Distortion at 10MHz, 2VP-P ■ –70dBc 3rd Harmonic Distortion at 10MHz, 2VP-P ■ Low Supply Current: 9mA per Amplifier ■ 6.5ns 0.1% Settling Time for 2V Step ■ ISS ≤ 500µA per Amplifier when Disabled ■ Differential Gain of 0.033%, Differential Phase of 0.022 ° ■ Wide Supply Range: ±2.25V (4.5V) to ±6V (12V) ■ Available in 24-Lead SSOP and 24-Lead QFN Packages 650MHz Gain of 2 Triple 2:1Video Multiplexer RGB Multiplexer and Line Driver Video Amplitude Transient Response LT6555 V+ V– RINA GINA BINA RINB GINB BINB 75 Ω 75 Ω 75 Ω 75 Ω 75 Ω 75 Ω SELECT A/B 6555 TA01a AGND ENABLE DGND 75 Ω 75 Ω ROUT 75 Ω 75 Ω GOUT 75 Ω 75 Ω BOUT ×2 ×2 ×2 , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TIME (ns) 0 0.6 1.0 1.4 1.8 1.6 16 6555 G21 0.2 –0.2 0.4 0.8 1.2 0 –0.4 4 8 12 218 6 10 14 20 VIN = 0V TO 700mV VS = ±5V RL = 150Ω TA = 25°C |
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