器件名称:
GX4404-CDC
功能描述:
GX4404 Wideband, Monolithic 4x1 Video Multiplexer
文件大小:
127.75KB 共3页
简 介:
GX4404 Wideband, Monolithic 4x1 Video Multiplexer 2-DATA SHEET FEATURES low differential phase and gain wide bandwidth, 200 MHz at -3 dB small switching transient ±4.5 to ±5.5 volts supplies individual TALLY outputs CIRCUIT DESCRIPTION The GX4404 is a wideband video multiplexer implemented in bipolar technology. This device is characterized by excellent differential phase and gain in the enabled state, very high off-isolation in the disabled state. Fully buffered unilateral signal paths ensure negligible output to input feedback, while delivering minimal output switching transients through make-before-break switching. For use in NxM routing matrices, these devices feature a very high, nearly constant input impedance coupled with high output impedance in the disabled state. This allows multiple devices to be paralleled at the inputs and outputs without additional circuitry. The chip is disabled when a logic HIGH is applied to the CS control pin. In this case, regardless of the ADDRESS data, the output of the device assumes a high impedance state. Individual PNP to VCC TALLY outputs provide positive indication of crosspoint selection. All logic inputs are TTL and 5V CMOS compatible. Supply voltages can be between ± 4.5 to ± 5.5 volts. FUNCTIONAL BLOCK DIAGRAM TALLY OUTPUTS T0 T1 T2 T3 IN 0 IN 1 IN 2 IN 3 X X X X X OUTPUT APPLICATIONS 2 TO 4 DECODER CHIP SELECT HDTV Very high quality video switching Very high density video switching Computer graphics A0 A1 CS ……
