AJA 12G-SDI Input and Output up to 4K / UltraHD with ST Fiber Receiver (12G-AMA-R-ST)

Professional 12G-SDI Audio Embedding and Disembedding

The AJA 12G-AMA-R-ST is a high-performance 4-channel analog audio embedder/disembedder Mini-Converter designed for demanding 12G-SDI workflows. Supporting resolutions up to 4K/UltraHD, this model features an integrated ST Fiber Receiver, allowing for the reception of high-resolution signals over long distances with professional-grade reliability.

Audio disembedding is always active, providing four analog outputs for monitoring or downstream processing. Audio embedding is user-selectable on a channel pair basis, giving you the flexibility to either pass 12G-SDI input audio or embed new analog audio from the included breakout cable. The device also features selectable analog audio levels and automatically detects the input video standard for a plug-and-play experience.

Technical Specifications

Video Formats

• (4K) 4096x2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (UltraHD) 3840x2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (2K) 2048x1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920x1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920x1080i 50, 59.94, 60
• (HD) 1280x720p 50, 59.94, 60
• (SD) 625i 50
• (SD) 525i 59.94
• RGB and YCbCr, 4:4:4/4:2:2, 10-bit

Note: Raster and frame rate dependent, please see 12G-AMA Video Formats in Documents and Manual.

Digital Video Input

• 1x 12G-SDI BNC, SMPTE 259/292/424/2081/2082
• Single Link SD/HD/2K/UltraHD/4K
• Single Link 3G-SDI Level A, B-DL, or B-DS, SMPTE 425

Fiber Input (12G-AMA-R-ST)

• 1x 12G-SDI Fiber ST connector, SMPTE 297/259/292/424/2081/2082
• Wavelength: Rx 1260 nm (min), 1620 nm (max)
• Optical Sensitivity: -10 dBm (min 12 Gbps), -14 dBm (min 3 Gbps)
• Overload Power: -2 dBm (min)

Digital Video Output

• 1x 12G-SDI BNC, SMPTE 259/292/424/2081/2082
• Single Link SD/HD/2K/UltraHD/4K
• Single Link 3G-SDI Level A, B-DL, or B-DS, SMPTE 425

Audio Inputs and Outputs

• Balanced Analog Audio, 1x 25 pin D female connector
• Included Breakout Cable: 4x XLR female input and 4x XLR male output connectors
• Digital Audio Converters: 24-bit

Embedded Audio

• SMPTE 272M (SD): 20-bit, 48 kHz synchronous
• SMPTE 299M (12G/6G/3G/1.5G): 24-bit, 48 kHz synchronous
• Up to 16 channels supported

Note: 2048x1080p/PsF 29.97 and 30 formats support a maximum of 8-channels embedded audio.

Physical and Power

• Size: 5.8" x 3.1" x 1.0" (147.32 x 78.74 x 25.4 mm)
• Weight: 0.6 lb (0.3 kg)
• Power: +5-16VDC, 10 watts (power supply included)
• Operating Temperature: 0 to 40 C (32 to 104 F)