GB4550A Datasheet | Gennum

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 d B at 25 MHz GB4550A ±0.1 d B at 25 MHz .. 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 150p F 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 bandwidth. PIN CONNECTIONS Pin No. 1 2 3 4 5 6 7 8 GB4550 +IN VCC P VCL CX VEE -IN OUT GB4550A +IN VCC NC VCL CX V EE -IN OUT Function non-inverting input positive power supply frequency pensation or NC clamp voltage input external capacitor negative power supply inverting input output (+2 V OUTPUT CLAMP) 100k (NC on GB4550A) 30k + 10p F +IN -IN VCC 7m A Nominal VEE OUT + 30k ORDERING INFORMATION Part Number GB4550 - CSA GB4550ACSA Package Type 8 pin SIP 8 pin SIP Temperature Range 0 to 70o C 0 to 70o C All resistors in ohms, all capacitors in...