Specifications

Benhur Corporation – Multidyne, International Sales
16
VDA-201
20MHz, Utility DA for Video, Pulse, Subcarrier and AES/EBU Digital Audio,
1x8, Modular Card
The VDA-201 is an economical high performance distribution amplifier
ideal for applications where clamping and cable equalization are not
required.
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.
The DA is ideal for short cable runs to monitors and for the distribution of
color black burst reference signals.
The full line VDA-200 Distribution Amplifiers support the 75 Ohm coaxial
distribution of AES/EBU digital audio signals.
The modular design is compatible with the MULTIDYNE UTIL-200 and
the Grass 8500/8800/8900 trays.
VDA-202
20 MHz, Utility DA for Video, Pulse, Subcarrier and AES/EBU Digital Audio with
Back-porch Clamp, 1x8, Modular Card
The VDA-202 is an economical high performance distribution amplifier
ideal for applications where clamping is required and cable equalization
is not required.
The DA is ideal for long cable runs to monitors, for the distribution of
color black burst reference signals and for studio to studio distribution of
video signals where ground differences or DC off-sets may exist.
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.
The full line VDA-200 Distribution Amplifiers support the 75 Ohm coaxial
distribution of AES/EBU digital audio signals.
The modular design is compatible with the MULTIDYNE UTIL-200 and
the Grass 8500/8800/8900 trays.
Specifications
VDA-201
VDA-202
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: > 35 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: -1dB.
Differential Gain: <0.1 %;
Differential Phase: <0.1¡Æ.
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
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: > 35 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: -1dB.
Clamp type: Back-porch, sampling,feedback.
Differential Gain: < 0.1 %
Differential Phase: < 0.1¡Æ
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
Distribution Amplifiers, Automatic Gain, EQ