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) com 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 requirin...

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