MAP-3901
3G/HD/SD Metadata and Embedded Audio Processor
The MAP-3901 is the latest generation metadata and audio processor in the Densité family, offering sophisticated audio signal processing on a single 3 RU module. The powerful and versatile processing platform delivers significant value by simultaneously processing up to 56 channels of audio (16 channels of embedded audio from the video, plus others generated internally). Functions include dual downmixing, level control, channel shuffling/mixing and an on-board DSP engine that can run simultaneously with up to two optional Dolby-E decoders, four optional Dolby Digital & Digital Plus encoders, and two optional upmixers (2.0 to 5.1).
Video
  • 3G/HD/SD input
  • Supports 3 Gb/s level A (mapping 1) and level B
  • Flexible SD/URS reference input
  • Programmable audio/video delay of up to 4.1 seconds (124 frames) in HD
  • Bypass relay with MAP-3901-3DRP-R, MAP-3901-3DRP-F-R and MAP-3901-3+SRP-R-D rear modules
  • Optional optical fiber I/O*1 module with MAP-3901-3DRP-F-R rear module

Metadata
  • Four audio metadata insertion and extraction (SMPTE 2020 Method A or B)
Audio
  • Full audio shuffling and mixing per channel basis
  • 56 channels internal audio processing
  • 2 audio 5.1 surround downmix to Lt/Rt or Lo/Ro
  • Audio delay adjustments of up to 2 seconds to compensate for lip sync
  • Up to 2 optional Dolby E decoders
  • Up to 2 optional stereo to 5.1 upmixers
  • Up to 4 optional Dolby Digital and Digital Plus Encoders
*1 SFP Plug-in Cartridges will be supported at a later date with a firmware update.
Video Input/Output
Signal (1):
  • SMPTE-259M-C (270 Mb/s)
  • SMPTE-292M (1.485, 1.485/1.001 Gb/s)
  • SMPTE-424M (2.970, 2.970/1.001 Gb/s)
Supported formats:
  • SD: 480i59.94, 576i50
  • HD: SMPTE-274M: 1080i59.94, 1080i50
  • HD: SMPTE-296M: 720p59.94, 720p50
  • 3G: SMPTE-425M level A (mapping 1), level B:1080p59.94, 1080p50 (dual link)
Cable length*2:
  • 325m (1,066 ft.) Belden 1694A at 270 Mb/s
  • 180m (590 ft.) Belden 1694A at 1.485 Gb/s
  • 90m (295 ft.) Belden 1694A at 2.970 Gb/s

Return loss:

  • OUT 1: > 8 dB up to 3 GHz
  • OUT 2: > 15 dB up to 1.5 GHz
                > 10 dB at 3 GHz

Jitter:

  • HD/SD: <0.2 UI (alignment jitter)
  • 3G: <0.4 UI (alignment jitter)

Reference Input
Signal:
  • SMPTE 170M/SMPTE 318M/ITU 624-4 blackburst
  • SMPTE 274M / SMPTE 296M tri-level sync

Return loss: >27dB up to 5.75 MHz


LTC
Not used


GPIO
Signal (8): Opto-isolated, common ground
Direction: Bidirectional
Connector: DE15


RS-422/ETH
Not used


Video Processing Performance
Signal path: 10 bits minimum
Processing delay: 1 interlaced frame (33 ms @59.94 Hz or 40 ms @50 Hz)
Additional delay: (HD) Up to 4.1 seconds frames upon user selection

 

Audio Processing Performance
Quantization: 24 bits
Sampling: 48 kHz, synchronous
Number of channels: 56
Frequency response: ±0.02 dB (20 Hz to 20 kHz)
SNR: 123 dB (A weighted)
THD + N: -138 dB (20 Hz to 20 kHz)
Audio latency: Delay depending on processing options
Audio delay: Up to 2s (1 ms steps) in addition to programmed video delay


Electrical
Power: 25W max.


*2 Cable length will be reduced when using the output protected by the bypass relay on rears MAP-3901-3DRP-R, MAP-3901-3DRP-F-R and MAP-3901-3+SRP-R-D.

 

Densité 3 frame Description
MAP-3901 3G/HD/SD metadata and embedded audio processor
MAP-3901-3DRP-R Double Rear panel with BNC and bypass relay
MAP-3901-3DRP-F-R Double Rear panel with BNC, fiber connector and bypass relay
MAP-3901-3+SRP-R-D Single Rear panel with Din and bypass relay for Densité 3+ frame
   
Options (Software) Description
MAP-3901-OPT-DED-1 Single Dolby E decoding option
MAP-3901-OPT-DED-2
Dual Dolby E decoding option
MAP-3901-OPT-DDE-1 Single Dolby Digital Plus encoding option
MAP-3901-OPT-DDE-2 Dual Dolby Digital Plus encoding option
MAP-3901-OPT-DDE-3 Triple Dolby Digital Plus encoding option
MAP-3901-OPT-DDE-4 Quadruple Dolby Digital Plus encoding option
MAP-3901-OPT-UPMIX-1 Single Stereo to 5.1 Surround upmix option
MAP-3901-OPT-UPMIX-2 Dual Stereo to 5.1 Surround upmix option
   
Remote control iControl, iControl Solo

In The News

MAP-3901: 3G/HD/SD Metadata and Embedded Audio Processor Datasheet

The MAP-3901 from Grass Valley, a Belden Brand, is the latest generation metadata and audio processor in the Densité family, offering sophisticated audio signal processing on a single 3 RU module. The powerful and versatile processing platform delivers significant value by simultaneously processing up to 56 channels of audio (16 channels of embedded audio from the video, plus others generated internally). Functions include dual downmixing, level control, channel shuffling/mixing and an on-board DSP engine that can run simultaneously with up to two optional Dolby-E decoders, four optional Dolby Digital & Digital Plus encoders, and two optional upmixers (2.0 to 5.1).

Posted Jun 23 2015 (GVB-1-0497B-EN-DS) File Size: 525.4 KB

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