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GB4570 Monolithic Video Buffer/Clamp
DATA SHEET
FEATURES • accurate sync tip clamping (± 2 mV typical) • less than 1 mV clamping distortion • variable clamping voltage (VEE + 3 V to VCC -4.5 V)
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DESCRIPTION The GB4570 is a high performance video buffer/clamp used primarily for sync tip clamping of video signals. Key features include operation from ± 4.5 to ± 13.2 V supply voltages, ± 0.1 dB flatness to 80 MHz and availability of industry standard DIP and SOIC packages. In a typical video application, the GB4570 clamps the sync tip to a known voltage. The clamping level can be set for normal sync tip clamping by connecting pin 3 to - 0.286 volts. For applications requiring non-standard sync tip clamping, the clamping voltage applied to pin 3 may be varied.
GB4570 Datasheet
