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MD-2U-4002

HD Down Converter with Digital to Analog Conversion

features:
  • Downconverts HD to SD and Composite NTSC
  • Advanced 32 Tap Filter
  • Integrated D-to-A for Video and Audio
  • Per-Channel Audio Gain Control with Adjustable 5.1 to Stereo Mix-Down
  • Ultra-Low Delay Mode – Under 3 Milliseconds
functions:
  • Built-in Frame Synchronizer
  • Simultaneous Analog and Digital Audio Output
  • HD to SD Color Space Conversion
  • Selectable 1080i or 720p Input
  • Component Color Level and Phase Controls
applications:
  • Prepare HD Programming for SD Broadcasts
  • Adapt SD Monitors to View HD Content
  • Format HD Video for Transport on SD Communication Links
datasheet:
Image  

High-Quality HD Downconverter Simultaneously Generates NTSC and SD Video plus Analog and Digital Audio



Description

The MD-2U-4002 provides high quality down conversion of HD-SDI (SMPTE 292M) signals and supplies two simultaneous output signals: an NTSC composite (EIA-RS170A) and an SD-SDI (SMPTE259M). Through the use of robust 32 tap FIR vertical and horizontal fi lters and 10-bit video resolution, Media Links can ensure the utmost level of video performance.

Video processing features include a built in frame synchronizer with audio with audio sample rate conversion and aspect ratio conversion. Other video processing controls include vertical and horizontal detail enhancement, per-channel component and composite gain control, pedestal level, hue phase control and black+white clip levels.

Advanced audio processing capabilities also featured in the MD-2U-4002 include 48kHz/24 bit audio sampling, per-channel audio delay and gain control. The built-in stereo mix-down circuit takes up to six channels of audio and produces a precisely calibrated stereo pair under complete user control.

The MD-2U-4002 Down Converter resides in the MD2000 Series Multipurpose Frames and the MD-003 1RU Hybrid Frame. Dual redundant power supplies and controller card with remote management software ensures that the system can be controlled and monitored locally and remotely. The MD2000 Series Frames are available as 16 slot/2RU chassis, 2 slot/1RU half rack chassis and 4 slot/1RU MD-003 hybrid chassis (houses up to two MD2000 Series and two MD-003 Series modules.)

Specifications

Specifications

General Specifications
Inputs: HD-SDI (SMPTE 292M) 1080i/59.94Hz or 720P/59.94Hz 1xBNC
  NTSC Black Burst (EIA-RS170A) 1xBNC (on frame)
Outputs HD-SDI (SMPTE 292M) Active Loop 1xBNC
  SD-SDI (SMPTE 259M) 525i/59.94Hz 2 x BNC
  AES/EBU Digital Audio (AES-3id-1995) 2 x BNC
  Analog Audio 2 x 3-wire (2 channels)
  NTSC Composite Analog (EIA-RS170A) 1 x BNC
Physical
Size: 2RU Module / Occupies 2 slots  
Power Consumption 30 watts Max.  
Operating Temperature Range: 0°C to +40°C  
System Specifications
Filters: 32 Line x 32 TAP FIR Filter for Horizontal and Vertical Reduction
Minimum Delay: 1080i: 9H / 720P: 113H
Audio Outputs Analog Audio AES/EBU Digital Audio
Output Impedance 600 Ohm Balanced 75 Ohm Unbalanced
Return Loss   >25dB (0.1MHz–6.144MHz)
Output Level +24 dBm (Max.) 1.0V ± 0.2V, 50mV Max. DC Offset
Base Level 0dBm or +4dBm switchable  
Analog Audio
Harmonic Distortion <0.1% (50Hz–16kHz)  
SNR >76dB (50Hz–16kHz)  
Frequency Response ±0.3dB (50Hz–16kHz; 1kHz ref.)  
Sampling 48 kHz /24 bits  
HD Video HD-SDI Input HD-SDI Active Loop
Max Cable Length 100m 5C-FB or equivalent  
Return Loss >15dB (5 MHz–742.5MHz) >15dB (5 MHz–742.5MHz)
  >10dB (742.5 MHz–1.485 GHz) >10dB (742.5 MHz–1.485 GHz)
HD-SDI Active Loop
Signal Amplitude 800mVp-p ±10%  
Rise/Fall Time <270ps (20% – 80% Amplitude)  
SD Video SD-SDI Output NTSC Composite Analog Output
Signal Amplitude 800mVp-p ±10% 1.0Vp-p
Output Impedance 75 ohms 75 ohms Unbalanced
Rise/Fall Time <1.5ns (20% – 80% Amplitude)  
DC Offset 0.0 ±0.5V  
Frequency Characteristics   < ±0.2dB (0.5MHz–4.2MHz)
    <-40dB @ 4fsc
DG/DP   <1%/1° (10–90% APL)
SNR   >58dB
Waveform Distortion   2T pulse Kp = 1 or less
    Line/Field Time Distortion: <1%
Return Loss >15dB (5MHz–270MHz) >32dB (60Hz–4MHz)
    >28dB (4MHz–8MHz)
Newtwork Management
Interface 10 BaseT via Controller Card
Control & Monitoring Media Links control & monitoring software

Ordering

Ordering Information

Model Number Description
MD-2U-4002 HD Down Converter with NTSC composite and SD-SDI outputs and additional Analog and Digital audio de-embedding

All the MD2000 boards including this MD-2U-4002 board are Hot-Swappable without affecting operations of the other boards.

All specifications are subject to change without notice by Media Links. HD270 Coax, HD-GigE, MD-003, MD2000, MD6000, MD6100R, MD-003STM, MD-003VidMod, MD-2U-4001, MD-2U-4002, MD-003ETH, and MD-003GETR are trademarks of Media LInks Inc.