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AMX-1901

3G/HD/SD 8 Channel Analog Audio Embedder

The AMX-1901 is an advanced, high-quality 24-bit 48 kHz analog audio embedder designed to insert up to eight analog audio signals into a 3G/HD/SD video signal. The AMX-1901 can process the eight audio input channels with functions including level, channel shuffling and mixing. Options include Automatic Loudness Control and dynamic processing (limiter, compressor and expander).

AMX 1901
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FEATURES

Audio
  • 8 analog audio inputs with inputs shuffling
  • Individually adjustable input level
  • Audio delay adjustments of up to 2.7s to compensate for lip sync issues
  • Audio dynamic processor option (compressor/limiter/expander)
  • Optional 8 programs/8 channels Automatic Loudness Control with Wideband processing
  • Loudness measurement of up to 8 audio programs and logging with iControl Loudness Monitoring software
  • Loudness compliant to EBU R128-2014, ATSC A/85:2013 (FCC CALM compliant) and ARIB TR-B32 (ITU-R BS.1770-3)
  • Built-in test generator (audio + video)
  • Monitoring and reporting of audio input Overload, Max/Min Level, Silence and Phase

 

Video
  • 3G/HD/SD input
  • Supports 3G level A (mapping 1) and level B
  • Internal black or color bar generator in case of input signal absence or loss
  • Flexible HD/SD/URS reference input, used only with an input signal absence
  • Optional optical fiber SFP cartridge
  • Black Detection monitoring
Metadata
  • AFD (SMPTE ST 2016), VLI (SMPTE RP 186) and WSS insertion
  • Longitudinal timecode (LTC input) embedding into DVITC (SD) or ATC (3G/HD)
  • Audio metadata insertion (SMPTE ST 2020-A) from RS-422 serial data input
  • 2 GPI inputs that can be inserted in the timecode user bits

SPECIFICATIONS

Analog Audio Inputs (8)

Signal: balanced analog audio

Input impedance: > 12 kΩ

Max. level: +24 dBu

Audio Processing Performance

Quantization: 24 bits

Sampling: 48 kHz

SNR: >117 dB A weighted

0 dBFS: 0 to +24 dBu (1 dB steps)

Distortion: -90 dB (20 Hz to 5 kHz)

Crosstalk: -100 dB (20 Hz to 20 kHz)

Freq. response: ± 0.05 dB (20 Hz to 20 kHz)

Processing delay: 400 μs to 3 ms depending video resolution and processing options

Tone generator: -18 dBFS 1 kHz sine wave interrupted on left channel (250 ms) per EBU R49

Video Input (1) / Output (2)

Signal:

  • SMPTE ST 259 (270 Mb/s)
  • SMPTE ST 292 (1.485, 1.485/1.001 Gb/s)
  • SMPTE ST 424 (2.970, 2.970/1.001 Gb/s)

Supported formats:

  • 480i59.94, 576i50
  • SMPTE ST 274: 1080/59.94, 1080p23.98/24sF/25/29.97
  • SMPTE ST 296: 720p24, 720p23.98, 24/50/59.94
  • SMPTE ST 425 Level A (mapping 1), Level B: 1080p59.94, 1080/50

Embedded audio:

  • SMPTE ST 272 (SD)
  • SMPTE ST 299 (HD)

Embedded ATC: SMPTE RP 188

Embedded ANC: SMPTE ST 291

Cable length:

  • 300m (984 ft.) Belden 1694A at 270 Mb/s
  • 150m (492 ft.) Belden 1694A at 1.485 Gb/s
  • 120m (393 ft.) Belden 1694A at 2.970 Gb/s

Input impedance: 75Ω

Return Loss:

  • >15 dB up to 1.5 GHz
  • >10 dB from 1.5 GHz to 3 GHz

Jitter:

  • SD/HD: < 0.2 UI (alignment jitter)
  • 3G : < 0.3 UI (alignment jitter)

 

External Reference Input (1)

Signal:

  • SMPTE ST 170/SMPTE ST 318/ITU 624-4 Black Burst
  • SMPTE ST 274/SMPTE ST 296 Tri-level sync
  • Input impedance: 75Ω
  • Return loss: >35 dB up to 5.75 MHz
Frame Reference

Signal: URS from REF-1801 card installed in the frame

LTC Input (1)

Signal: SMPTE ST 12

Connector: RJ45

Impedance: 10 kΩ unbalanced

Level: 0.2 to 5 Vp-p

 

GPI Input (2)

Signal: Contact closure to ground

Connector: RJ45

RS-422 Metadata Input (1)

Signal: RS-422

Connector: RJ45

Level: 300 mVp-p min.

Rate: 115200 bauds

 

Optical Video Input (0 or 1)

Refer to SFP module specifications:

  • SFP-R-S13-LC
  • SFP-RT-S13-LC
Optical Video Output (0, 1 or 2)

Refer to SFP module specifications:

  • SFP-T-S13-LC
  • SFP-TT-S13-LC
Video Processing

Signal Path: 10 bits

I/O Processing delay:

  • Normal: < 1.1 line for all format except 3G Level B
  • Minimum: < 0.25 line for all format except 3G Level B

 

Electrical

Power: <7W with dual SFP cartridge

ORDERING INFORMATION

Densité 2 Frame Densité 3 Frame Description
AMX-1901 AMX-1901-3RU 3G/HD/SD 8 channel analog audio embedder
AMX-1901-DRP   Double rear connector panel
AMX-1901-DRP-F   Double rear connector panel with fiber cage
  AMX-1901-3SRP Single rear connector panel
  AMX-1901-3SRP-F Single rear connector panel with fiber cage
 
Options (Software) Description
AMX -1901-OPT-DP Dynamic Processing Option (Compressor/Limiter/Expander)
AMX -1901-OPT-ALC 8-channel Automatic Loudness Control option
 
Options (Hardware) Description
NSH26M HD-26 to terminal block adapter
SFP-TT-S13S13-LC Dual fiber TX (output) cartridge at 1310 nm with LC/PC connector
SFP-R-LC Single fiber RX (input) cartridge with LC/PC connector
SFP-T-S13-LC Single fiber TX (output) cartridge at 1310 nm with LC/PC connector
SFP-RT-S13-LC Dual fiber RX/TX (input/output) cartridge at 1310 nm with LC/PC connector
 
Other types of SFP Optical Plug-In Cartridges may be available for this product. Please visit www.grassvalley.com for more information.
 
Remote Control GV Orbit, iControl, iControl Solo

DOCUMENTS & DOWNLOADS

DATASHEETS

Download
AMX-1901: 3G/HD/SD 8 Channel Analog Audio Embedder Datasheet

The AMX-1901 is an advanced, high quality 24-bit 48 kHz analog audio embedder designed to insert up to eight analog audio signals into a 3G/HD/SD video signal.
Download

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