Link Electronics MDA-55 1 x 4 3G/HD/SD SDI or ASI Distribution Amplifier

The MDA-55 is a 3G/HD/SD SDI & ASI distribution amplifier that combines exceptional performance with both value and compact size. The input signal can be 143Mb/s, 177Mb/s, 270Mb/s, 360Mb/s, 540Mb/s, 1.485Gb/s or 2.97Gb/s standards. It restores the incoming signal to its proper amplitude. The signal is reshaped with automatic equalization and DC restoration. The signal output level is 800mV p-p, and re-clocked.

The MDA-55 includes an automatic input cable compensation circuit commonly referred to as an adaptive cable equalizer. Its maximum equalized
cable length; for SD up to 750 feet at 270Mb/s, for HD up to 250 feet at 1.485Gb/s, and for 3G up to 150 feet at 2.97Gb/s.

The MDA-55 includes a crystal referenced re-clocking circuit that senses three data rates: 270Mb/s, 1.484Gb/s, and 2.97Gb/s. If the data rate is one of these three rates, the re-clocker will automatically activate and reduce high frequency jitter. If the incoming data rate is not any of the above, then the MDA-55 re-clocker will go into the bypass mode. If the data rate is 143 Mb/s or 177 Mb/s, the MDA-55 output rise times are slowed down to comply with the SMPTE 259 specification. The default for the MDA-55 is the faster SMPTE 292 HD rise time.

The MDA-55 has four outputs are provided on the end panel, as well as, a detachable DC power cable. These are four outputs that follow whatever the input is. There are three LED?s, on the end opposite of the BNC connectors, indicating re-clocker locked (red-unlocked or green-locked), data rate (blue-3G, green-HD, or yellow-SD), and power on (green).

The MDA-55 can be used in places where space is a premium and at the same time get excellent performance with lower cost. It is designed for applications that require equalization, re-clocking and distribution for 3G/HD/SD SDI as per SMPTE 259 (SD), SMPTE 292 (HD), and SMPTE 424(3G). It carries the Link's standard 10-year warranty including parts and labor.

Made in the USA! 10-Year Warranty

• DC Powered, Portable
• SMPTE 259M, 344M, 292M, & 424M
• Wall Adapter Power Supply Included
• 1 x 4 3G/HD/SD SDI or ASI DA
• Data Rate Indication
• Re-clocker Locked Indication
• Automatic Equalization and Re-clocking
• Compact Size

• ?Number of Inputs: 1
• Connectors: BNC
• Impedance: 75 Ohms
• Signal Level: 800mV
• Return Loss: 22 db
• Composite: 143Mb/s
• Component: 177Mb/s, 270Mb/s, 360Mb/s, 540Mb/s,1.485Gb/s or 2.97Gb/s
• Input Cable Length Equalization:
• SD: 750 Feet @ 270Mb/s
• HD: 250 Feet @ 1.485Gb/s
• 3G: 150 Feet @ 2.97Gb/s
• Number of Outputs: 4
• Connectors: BNC
• Impedance: 75 Ohms
• Signal Level: .800mV
• Overshoot: <8% of Amplitude
• Jitter Improvement: approximately 10%
• Propagation Delay:
• 3G: 0.007 ?s
• HD: 0.013 ?s
• SD: 0.037s
• Additive Jitter:
• SD: 30 Ps {p-p} (typical)
• 3G/HD: 10 Ps {p-p} (typical)
• Lock Detect: Red/Green LED
• 3G/HD/SD: Blue/Green/Yellow LED
• DC Power: Green LED
• Temperature: 0?to 50?C Ambient
• Humidity: 10% to 90% non-condensing
• Power: 5 VDC @ 4.2 Watts
• Mechanical:
• Height: 0.75 Inch
• Width: 4.0 Inches
• Depth: 2.0 Inches
• Weight: 4 Ounces