GB4550

GB4550 & GB4550A Monolithic Video Buffer/Clamp DATA SHEET FEATURES adjustable clamp level from -5.5 V to +5.5 V at ±10 V supplies. ultra low differential gain (0.02% typ.) and differential phase (0.03° typ.) wideband unity gain: GB4550 ±0.2 dB at 25 MHz GB4550A ±0.1 dB at 25 MHz www.DataSheet4U.com DESCRIPTION The GB4550 and GB4550A are high performance monolithic video buffer/clamps made on Gennum's LSI process. They feature a wideband differential amplifier that can be configured as a gain stage. The output signal voltage is limited to +2V above the clamp level in order to prevent damage to crosspoints connected to the output. The clamping level can be set for normal sync tip clamping by connecting pin 4 to -0.286 volts. For other applications, the clamping voltage level can be varied from -5.5 to +5.5 volts. The GB4550A features a tight delay spread of only ± 0.15 degrees while the GB4550 maintains a ± 1.5 degree delay spread. Both devices operate from ± 9 to ± 12 V power supplies and will directly interface with Gennum's video crosspoint switches. The 8 pin SIP package is ideally suited for space restricted board layouts. GB4550 and GB4550A APPLICATIONS Input buffering and clamping to crosspoint switches 1 2 3 4 5 6 7 8 Inter - system video signal clamping both drive 150pF loads at full power, flat to 10 MHz. GB4550A — tight delay spread of ±0.15°at colorburst. convenient 8 pin SIP packaging. both can be configured as a gain stage with reduced bandwid...