AJA 12G-AMA, 12G-AMA-R Specifications

12G-AMA

The 12G-AMA is a 4-channel analog audio embedder/disembedder Mini-Converter with support for
12G-SDI input and output up to 4K/UltraHD. Fiber models offer single link fiber I/O including LC and
ST options.

Audio disembedding is always functional, providing four analog outputs. Audio embedding is user
selectable, on a channel pair basis, to either pass 12G-SDI input audio or to embed input analog
audio from the breakout cable.

Analog audio levels are selectable. The 12G-AMA automatically detects and configures the input
video standard.

https://www.aja.com/products/12g-ama

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.

Video Input Digital

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

Optical Sensitivity: -10 dBm (min 12 Gbps), -14 dBm (min 3 Gbps)
Overload Power: -2 dBm (min)

Video Output Digital

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 Output
(12G-AMA-T, 12G-AMA-TR)

1x 12G-SDI Fiber LC connector, SMPTE 297/259/292/424/2081/2082

Nominal Wavelength: Tx 1260 nm (min), 1310 nm (typ), 1360 nm
(max)
Optical Power: -5 dBm (min), 0.5 dBm (max)
Extinction Ratio: 5.4 dB (min)

Fiber Output
(12G-AMA-T-ST)

Fiber Input
(12G-AMA-R, 12G-AMA-TR)

1x 12G-SDI Fiber LC 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)

1x 12G-SDI Fiber ST connector, SMPTE 297/259/292/424/2081/2082

Nominal Wavelength: Tx 1260 nm (min), 1310 nm (typ), 1360 nm
(max)
Optical Power: -5 dBm (min), 2 dBm (max)
Extinction Ratio: 3.4 dB (min)

Cable Equalization

$995 US MSRP

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)

12G-AMA - Spec Sheet

(Belden 1694A coax)

12 Gbps, 65m
6 Gbps, 125m
3 Gbps, 190m

1.5 Gbps, 200m

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270 Mbps, 405m

Environment

Video Path Delay

Video Out is a delayed, reclocked version of Video In, at the same frame rate,
etc. Video Out is undefined when no input.

Video Latency, time measured between video input and video output
connector:

12G = 3.2 µsec
6G = 3.2 µsec
3G level B (Dual Stream HD mode) = 6.3 µsec
3G level A = 3.2 µsec
HD (1.5 Gb) = 6.3 µsec
SD (270 Mb) = 17.2 µsec

Audio Inputs and Outputs

Balanced Analog Audio, 1x 25 pin D female connector on the
converter, 4-channels in, 4-channels out
Breakout cable provided with 1x 25 pin D male connector:

4x XLR female input breakout connectors
4x XLR male output breakout 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
Incoming embedded audio can be passed, removed, or overridden
Up to 16 channels supported

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

Safe Operating Temperature: 0 to 40 C (32 to 104 F)
Safe Storage Temperature (Power OFF): -40 to 60 C (-40 to 140 F)
Operating Relative Humidity: 10-90% noncondensing
Operating Altitude: <3,000 meters (<10,000 feet)

Path Audio Latency

Embed Path 1100 µsec
Disembed Path 1200 µsec

Analog Audio Levels

Configured via Mini-Config software:

Pro 1: 0 dBfs = +24 dBu
Pro 2: 0 dBfs = +18 dBu
Pro 3: 0 dBfs = +15 dBu
Consumer 1: 0 dBfs = +12 dBu

User Interface

External DIP switch
USB port used with Mini-Config software application to configure the
device via PC/Mac

Size (w x d x h)

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 required, included with purchase

12G-AMA - Spec Sheet

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