Legacy¢â Series Distribution Amplifiers - VDA-640 Composite¸¦ ÀÔ·Â ¹Þ¾Æ 6°³ÀÇ CompositeÀ¸·Î ºÐÇØÇÏ´Â ÀåÄ¡ DC to 45 MHz @ -3 dB, HUM °¨¼â±â´É, Gain Á¶Àý °¡´É ÀÔ·Â : Composite Ãâ·Â : Composite Àü¿ø : 12-24 VAC or 12-24 VDC (Æ÷ÇÔ) VDA-640 (# 100-0-021): The VDA-640 is a six-output loop-thru input, video distribution amplifier with gain. The loop-thru input allows the original signal to go through unimpeded to other equipment while still allowing other channels with gain control to split up the signal for processing or monitoring. If the loop-thru connector is not connected, a 75 Ohm termination must be present for the VDA-640 to work properly. Each channel has 0.5X to 2.0X of adjustable gain. 75 Ohm terminators are available for purchase. Frequency Response DC-45 MHz @ -3 dB (1V pp input) Input Signal 0.5 to 2.0V pp video (-1 Volt to +1 Volt) Input Impedance >2K Ohms Input Coupling DC Gain 0.5X to 2.0X Adjustable (1V pp input) Number of Output 6 Output Signal 0.5 to 2.0V pp video (-1 Volt to +1 Volt) Output Impedance 75 Ohms Differential Gain <0.2%, typically 0.04% Differential Phase <0.2¨¬, typically 0.08¨¬ Connectors BNC Power Requirements 12-24 VDC or 12-24 VAC ungrounded either polarity, <120mA, typically 80mA Dimensions 4.25¡±W x 1.75¡±H x 12¡±L (with connectors) Shipping Weight 4 lbs (includes transformer) |