Specifications

Benhur Corporation – Multidyne, International Sales
21
VDDA-200
The VDDA-200 Video Delay DA supports adjustable delay
from 0 to 600 nano-seconds with +/- 6 nano-second fine
adjustment.
The unit is ideal for production and synchronization
applications where precise timing of signals is required.
The equalization feature compensates for up to 1500 feet of
cable losses for two type of cable.
The user can switch select cable equalizers for either 8281
and RG-59U or any two types of cable.
Please specify the cable type to be used.
The clamp circuit in the FAST mode will remove differential
mode hum from the video signal on a line by line basis.
The DA will cancel up to 60 Volts of common-mode hum.
The unit includes a differential loop-through input and eight
outputs with a front panel video presence LED.
Exceptionally versatile for NTSC, PAL, SECAM and composite
or component television systems.
The modular design is compatible with the MULTIDYNE UTIL-
200 and the Grass 8500/8800/8900 trays.
Specifications
Input
Type: 2 BNC Loop-through.
Impedance: 75 Ohms.
Return Loss: > 40 dB up to 5 MHz.
Output
Type: 8 BNC.
Impedance: 75 Ohms.
Return Loss: > 40 dB up to 5 MHz
Performance
Bandwidth, 3 dB: 22 MHz.
Frequency Response,
10 Hz to 5 MHz: +/-0.025 dB;
5 MHz to 8 MHz: +/-0.05 dB;
8 MHz to 10 MHz: +/-0.2 dB;
18 MHz: -1 dB.
Input Video Level Range: 0.2 to 2 Volts.
Gain Accuracy: +/- 0.05 dB.
Chrominance Burst Amplitude Accuracy:
+/- 0.05 dB.
Clamp type: Back-porch, sampling, feedback.
Equalization Range:
8281 type cable 0 - 3500 Ft with single control
RG-59U type cable 0 - 3000 Ft with single control.
Equalization Accuracy:
10 Hz to 5 MHz: +/- 0.05 dB;
5 MHz to 8 MHz: +/- 0.10 dB,
8 MHz to 10 MHz: +/- 0.20 dB.
Chrominance Adjustment Range: +/- 9 dB. Differential
Gain: <0.1 %;
Differential Phase: <0.1°.
Line or Field Tilt: <0.5 %.
Signal to Noise: > 80 dB.
Common Mode Rejection (60 Hz): >66 dB. Return
Loss, to 5 MHz: >42 dB.
Power Consumption, MAX: 2 Watts
Video Delay DA with 1500 Ft. Equalizer for 8281 & RG-59U cable & Back Porch Clamp, 1x8,
Modular Card (Preliminary)
VDDA-200
Distribution Amplifiers, Automatic Gain, EQ