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).
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 (20Hz 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 Vpp
GPI Input (2)
- Signal: Contact closure to ground
- Connector: RJ45
RS-422 Metadata Input (1)
- Signal: RS-422
- Connector: RJ45
- Level: 300 mVpp 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
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
MEDIA GALLERY
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-R-LC | Single fiber RX (input) cartridge 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 | iControl, iControl Solo, RCP-200 | |
