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IQDMX31

3G/HD/SD-SDI De-embedder for Four AES/EBU Audio Streams

The IQDMX31 provides 8-channel digital audio de-embedding for 3 Gb/s SDI, HD-SDI 1.5 Gb/s or SD-SDI 270 Mb/s signals. Audio processing features include gain, invert, delay and channel-level routing, while a video proc amp is also included in the feature set. Its video delay feature allows this module to be used where a Dolby E decoder, for example, is to be placed downstream of the AES outputs.

IQDMX31 Rear Panels
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FEATURES

  • 8-channel 3G/HD/SD-SDI de-embedder with 4 balanced or unbalanced AES outputs
  • Handles up to 16 channels of embedded audio present on the incoming SDI stream
  • Standards supported:
    • 3G-SDI to SMPTE ST 424/425 level A & B compatible
    • HD-SDI to SMPTE ST 292/274/296
    • SD-SDI to SMPTE ST 259-C
  • Channel-level (sub-frame) routing
  • Audio proc amp features including independent gain, invert, mute controls and adjustable delay for selected audio channels
  • Any group of embedded audio may be passed unchanged, processed or blanked
  • Embedded Dolby E support — pair routing, delay and Dolby E header alignment
  • Handles Dolby E and PCM audio present in the same group with detection and reporting
  • Able to pass all ancillary data without corruption inc. VANC metadata
  • Independent HANC and VANC blanking control
  • Input loss detection — default output of black/pattern/freeze
  • Up to 9 frames of video delay and 2 seconds of audio delay
  • Video controls including video gain and offset
  • Built-in test pattern generator and audio tone generator
  • 2 SDI inputs and 2 active HD/SD-SDI outputs
  • 16x user memories, save/recall/rename
  • GV Orbit control and monitoring compatible

SPECIFICATIONS

Inputs & Outputs

Signal Inputs
SDI inputs: 2x

Input 1 cable length:

  • Up to 70m Belden 1694A @ 3 Gb/s
  • Up to 160m Belden 1694A @ 1.5 Gb/s
  • >350m Belden 1694A @ 270 Mb/s


Input 2 cable length:

  • Up to 60m Belden 1694A @ 3 Gb/s
  • Up to 100m Belden 1694A @ 1.5 Gb/s
  • Up to 100m Belden 1694A @ 270 Mb/s


Signal Outputs
SDI outputs: 2x

Unbalanced digital audio: 4x AES/EBU, AC3, Dolby E (BNC)

Balanced digital audio: 4x AES/EBU, AC3, Dolby E (25-way D-type)

Controls

Indicators
Power: OK (Green)

CPU running: OK (Green flashing)

FPGA running: OK (Green flashing)

Status:

  • OK (Green)
  • Warning (Yellow)
  • Error (Red)


Input 1: OK (Green)

Input 2: OK (Green)

Video Controls
Input standards:

  • 1125(1080)/50P (A & B)
  • 1125(1080)/59P (A & B)
  • 1125(1080)/29i, 1125(1080)/25i
  • 750(720)/59P, 750(720)/50P
  • 525(480)/29i,625(576)/25i


Default video output type: Pattern, Freeze, Black

Default video output standard:

  • Last Known Good
  • 1125(1080)/50P (A & B)
  • 1125(1080)/59P (A & B)
  • 1125(1080)/29i, 1125(1080)/25i
  • 750(720)/59P, 750(720)/50P
  • 525(480)/29i, 625(576)/25i


Input select: Input 1, Input 2

Manual freeze: On/Off

Freeze: Field/frame

Video delay frames: 0 - 9 F

VANC data: Blank VANC

SD VANC data: Line blanking (6 controls)

Proc amp enable: On/Off

Black level: ±100 mV in steps of 0.8 mV

Hue adjust: ±180° in steps of 1°

Master video gain: ±6 dB in steps of 0.1 dB

Y-gain: ±6 dB in steps of 0.1 dB

Cb/Cr gain: ±6 dB in steps of 0.1 dB

Y/C timing:

  • ±8 pixels in 2 pixel steps (SD)
  • ±16 pixels in 2 pixel steps (HD/3G)


Picture position:

  • ±8 pixels in 2 pixel steps (SD)
  • ±16 pixels in 2 pixel steps (HD/3G)


Pattern on: On/Off

Pattern select: 75% Color Bars, Black

Caption on: On/Off

Edit caption: 19 characters available

Audio Controls

Embedder Assignment
Group 1 to 4: Enable On/Off

Pair 1 to 8 Source L/Non-PCM: Dis-embed 1_1 to 8_2, Tone, Silence

Pair 1 to 8 Source R: Dis-embed 1_1 to 8_2, Tone, Silence

Pair 1 to 8 Stereo: Link channel pairs

Pair 1 to 8 Polarity L/R: On/Off

Pair 1 to 8 Gain L/R: +12 dB to -72 dB in 0.1 dB steps

Pair 1 to 8 Non-PCM: On/Off

AES Assignment
AES 1 to 4 Source L/Non-PCM: Dis-embed 1_1 to 8_2, Tone, Silence

AES 1 to 4 Source R: Dis-embed 1_1 to 8_2, Tone, Silence

AES 1 to 4 Stereo: Link channel pairs

AES 1 to 4 Polarity L/R: On/Off

AES 1 to 4 Gain L/R: +12 dB to -72 dB in 0.1 dB steps

AES 1 to 4 Non-PCM: On/Off

Processed audio delay control:

  • Coarse manual delay: Up to 1.75s in 5 ms steps
  • Fine manual delay: ±0.25s in 0.5 ms steps


Tone
Frequency L/R: 100Hz to 10kHz in 100Hz steps

Channel ident: On/Off

HANC data: Blank HANC (Removes all HANC data. Note audio removed when embedders disabled)

Dolby-E
Dolby-E: Auto

Alignment: On/Off

Audio Monitoring
Silence detect: 0 to -80 dB in steps of 1 dB

Signal overload detect: 0 to -80 dB in steps of 1 dB

Warning timer: 1 to 20 seconds in steps of 1 second

Other Controls
User memories: 16x Save, Recall, Rename

Memory naming: User configurable naming of memories 1 – 16

RollTrack sources: Unused, Video Delay, Input Present, Input 1 Select, Input 2 Select, Input Loss, Output 525, Output 625, Output 720p, Output 1080i, Output 1080p, Output Freeze, Output Unfreeze, Output Pattern on, Output pattern off, Output Caption on, Output Caption off, Disemb (Pairs 1-8) PCM, Disemb (Pairs 1-8) Data, Disemb (Pairs 1-8) Dolby E, Disemb (Pairs 1-8) V bit, Disemb (Pairs 1-8) Loss

Information window: Video input status, audio input status

Factory default: Resets all module settings to factory specified default values and clears memories

Default settings: Resets all module settings to factory specified defaults but does not clear memories

Restart: Software restart of the module

Module information:

  • Reports following module information: Software version, Serial number, Build number, KOS version, Firmware version, PCB version
General Specifications

Electrical:

  • 3 Gb/s SDI, SMPTE ST 424
  • 1.5 Gb/s HD-SDI, SMPTE ST 292
  • 270 Mb/s SDI, SMPTE ST 259-C
  • DVB-ASI


Connector/format: BNC/75Ω panel jack on standard IQ connector panel
Return loss:

  • >-15 dB (270 Mb/s, 1.5 Gb/s)
  • >-10 dB (3 Gb/s)


Output jitter:

  • SD-SDI 0.2 UI (10 Hz) / 0.2 UI (1 kHz)
  • 3G/HD-SDI 1.0 UI (10 Hz) / 0.2 UI (100 kHz)


Video standards:

  • 1125(1080)/50p (A & B), 1125(1080)/59p (A & B)
  • 750(720)/50p, 750(720)/59p
  • 1125(1080)/25i, 1125(1080)/29i
  • 625(576)/25i, 525(480)/29i


Typical video delay:

  • SD: 70 µs
  • HD: 38 µs
  • 3G-A: 19 µs
  • 3G-B: 40 µs


Embedded audio handling:

  • HD: 24-bit synchronous 48 kHz to SMPTE ST 299
  • SD: 20-bit synchronous 48 kHz to SMPTE ST 272-A


Embedded audio delay:

  • Minimum (PCM): 2 ms
  • Maximum (non-PCM):
    • SD: 67 µs
    • HD: 28 µs
    • 3G-A: 15 µs
    • 3G-B: 25 µs


Digital Audio Output (Balanced)
Connector/format: 25-way D-type

Level: 3 Vp-p typical into 110Ω

Standard: AES3, SMPTE ST 272-A-1994, SMPTE ST 299

Digital Audio Output (Unbalanced)
Connector/format: BNC

Level: 1 Vp-p typical into 75Ω

Standard: AES3id, SMPTE ST 272-A-1994, SMPTE ST 299

Power Consumption
Module power consumption:

  • 9.5W Max (A Frames)
  • 8.5 PR (B Frames)

ORDERING INFORMATION

IQDMX3147-1A3, IQDMX3147-1B3
3G/HD/SD-SDI 8-channel AES de-embedder. 2 outputs, 4 unbalanced AES outputs.

IQDMX3149-1A3, IQDMX3149-1B3
3G/HD/SD-SDI 8-channel AES de-embedder. 2 outputs, 4 balanced AES outputs.

For more details on enclosure types please refer to the IQ Modular Enclosures datasheet.

DOCUMENTS & DOWNLOADS

DATASHEETS

Download IQDMX31 Datasheet DS-PUB-2-0852B-EN Thumbnail
IQDMX31: 3G/HD/SD-SDI De-embedder for Four AES/EBU Audio Streams Datasheet

The IQDMX31 from Grass Valley provides 8-channel digital audio de-embedding for 3 Gb/s SDI, HD-SDI 1.5 Gb/s or SD-SDI 270 Mb/s signals
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