1:20 Composite Video & Stereo Audio Distribution Amplifier
By: Kramer
Video & Computer Signal Processing Solutions
Kramer : VM-20ARII
Description
The VM20ARII is a multi-format, high-performance distribution amplifier that can also be configured for composite video and unbalanced stereo audio signals. The VM20ARII can be configured as a 1:10 distribution amplifier for s-Video (Y/C) signals or a 1:5 distribution amplifier for RGBS signals, both with unbalanced stereo audio.
Features
VM-20ARII features include:
-
High Bandwidth - 430MHz (−3dB).
-
Muti-Mode - Configure as a 1:20 (composite), 1:10 (s−Video), or 1:5 (RGBS) DA.
-
Grouped Audio Level Control.
-
Grouped Level (Gain) and EQ (Peaking) Controls.
-
Looping Input.
-
Selectable Input Signal Termination.
-
Video AC/DC Coupling Selection.
-
Standard 19” Rack Mount Size - 2U.
Specifications
| → Inputs | 4 Video, Looping, 1Vpp/75Ω on BNC Connectors with Termination Switches; 4 Unbalanced Stereo |
| → Outputs | Video: 20 (1:20, 2x1:10, 4x1:5, 1:10, 2x1:5) 1Vpp/75Ω on BNC Connectors; Audio: 20 (1:20, 2x1:10, 4x1:5, 1:10, 2x1:5) Stereo or Balanced Mono, 4dBu/50Ω, 27Vpp Max. on RCA Connectors |
| → Video Bandwidth(-3dB) | 430MHz |
| → Audio Bandwidth(-3dB) | 110kHz |
| → Diff. Gain | 0.06% |
| → Diff. Phase | 0.08deg |
| → Video S/N Ratio | 76dB |
| → Audio S/N Ratio | 80dB |
| → Video Control | -1.2 to 1.7dB Level, 0 to 2.4dB EQ |
| → Audio Control | 0.3 to 6.2dB |
| → Video Coupling | DC/Ac User Selectable |
| → Audio Coupling | AC (Input), DC (Output) |
| → Audio THD Noise | 0.02% |
| → 2nd Harmonic | 0.002% |
| → Power Source | 230V AC 50/60Hz (115V USA) 18.5VA |
| → Dimensions | 19" X 7" X 2U W, D, H, Rack Mountable |
| → Weight | 3.6kg (7.9lbs) Approx |
| → Accessories | Power Cord |
| → Muti-Mode | Configure as A 1:20 (Composite), 1:10 (S-Video), or 1:5 (Rgbs) DA |
| → Grouped Audio Level Control | Yes |
| → Gain | Grouped Level (Gain) and EQ (Peaking) Controls |
| → Looping Input | Yes |
| → Selectable Input Signal Termination | Yes |
| → Video AC/DC Coupling Selection | Yes |
| → Mount | Standard 19" Rack Mount Size - 2U |
Resources & Documents
| vm-20arii.pdf | Datasheet |