Frame Synchronizer

$879 US MSRP*

* Pricing is for US only. International pricing will vary.


The FS-Mini is a broadcast quality utility frame sync that packs the production-proven reliability of AJA’s leading FS frame sync technology into a portable Mini-Converter supporting frame synchronization of untimed 3G-SDI, HD, and SD video signals at an affordable price. 

FS-Mini allows users to synchronize and convert a wide range of video formats to their house standard with a 3G-SDI input and output, HDMI output, and a 2-channel RCA style audio output. The FS-Mini also provides high quality up, down, cross-conversion.

The device also features a reference input that can be used to lock to a local reference.  It can be simply controlled via local DIP switches or USB with AJA's Mini-Config application.


  • Utility frame sync function, times input signals to an external reference
  • Supports bi-level and tri-level references
  • High quality 10-bit video processing
  • Low latency processing, nominal video delay of 1 frame
  • Synchronizes 3G, HD and SD video formats
  • Loss of input management: Freeze, Black, or Mute
  • Simultaneous SDI and HDMI outputs
  • 16-channel embedded SDI audio I/O
  • 8-channel HDMI output audio
  • 2-channel RCA-style analog outputs at -10dBV (nominal)
  • Utility frame rate conversion
  • Supports 3:2 pulldown
  • Up, down, cross conversion between 3G, HD and SD video formats
  • AFD input detection, down-convert control
  • Simple configuration via a DIP switch or USB port and Mini-Config software on PC/Mac
  • Uses 5-20 VDC power (DWP-U-R1 universal power supply included)
  • Five year warranty

FS-Mini supports 3G-SDI Level A only. 3G-SDI Level B is not supported. 
FS-Mini passes-through embedded audio ancillary data only.  It does not pass through other types of embedded ancillary data.

Simplified Block Diagram

FS-Mini is designed to meet demands of broadcast engineering and live event production while providing incredible flexibility.  It receives an untimed signal, frame syncs it, processes it and automatically routes it to both the SDI output for use in production and the HDMI output for monitoring.  The user selects which 2-channels of audio are routed to the RCA-style audio monitor outputs.


Download Workflow

USB and Mini-Config Support

AJA’s free Mini-Config software can be used with any USB-enabled AJA Mini-Converter and provides an easy-to-use graphical interface with detailed information about the current input and output formats. Control all the parameters of any supported AJA Mini-Converter as well as loading firmware updates from AJA that add new features and functionality. 

Download Mini-Config

Tech Specs

Utility Frame Sync

  • Aligns and times input video to reference

Video Formats

  • (HD) 1920 x 1080p
  • (HD) 1920 x 1080PsF
  • (HD) 1920 x 1080i
  • (HD) 1280 x 720p
  • (SD) 625i
  • (SD) 525i
  • CbCr, 4:2:2, 10-bit

Video Input Digital

  • 1x 3G-SDI input, 1x BNC
  • 3G/HD/SD, SMPTE-259/292/424
    • Single Link 3G-SDI Level A, SMPTE-425-1
  • (HD) 1920 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
  • (HD) 1920 x 1080PsF 23.98, 24, 25, 29.97, 30
  • (HD) 1920 x 1080i 50, 59.94, 60
  • (HD) 1280 x 720p 50, 59.94, 60
  • (SD) 625i 50 
  • (SD) 525i 59.94 

Video Output Digital

  • 1x 3G-SDI outputs, 1x BNC
  • 3G/HD/SD, SMPTE-259/292/424
    • Single Link 3G-SDI Level A, SMPTE-425-1
  • (HD) 1080p 23.98 (for 23.98 video inputs)
  • (HD) 1080p 24 (for 24 video inputs)
  • (HD) 1080p 25 (for 50 video inputs)
  • (HD) 1080p 29.97 (for 59.94 video inputs)
  • (HD) 1080p 30 (for 60 video inputs)
  • (HD) 1080p 50 (for 50 video inputs)
  • (HD) 1080p 59.94 (for 23.98, 59.94 video inputs)
  • (HD) 1080p 60 (for 24, 30 or 60 video inputs)
  • (HD) 1080PsF 23.98 (for 23.98 video inputs)
  • (HD) 1080PsF 24 (for 24 video inputs)
  • (HD) 1080PsF 25 (for 50 video inputs)
  • (HD) 1080PsF 29.97 (for 59.94 video inputs)
  • (HD) 1080Psf 30 (for 30 or 60 video inputs)
  • (HD) 1080i 59.94 (for 23.98, or 59.94 video inputs)
  • (HD) 1080i 60 (for 24, 30, or 60 video inputs)
  • (HD) 1080i 50 (for 25 or 50 video inputs)
  • (HD) 720p 50 (for 50 video inputs)
  • (HD) 720p 59.94 (for 23.98, 59.94 video inputs)
  • (HD) 720p 60 (for 24, 30, or 60 video inputs)
  • (SD) 625i 50 (for 25 or 50 fps video inputs)
  • (SD) 525i 59.94 (for 23.98 or 59.94 video inputs)

Monitor Output Digital

  • 1x HDMI standard type A connector
    • HD/SD
    • Color space, YCbCr or RGB
    • Bit depth, 8 or 10
    • RGB Range, SMPTE or Full Range

Video Processing

  • Frame rate conversion/film cadence removal/insertion (3:2)
  • Loss of input management: Freeze, Black, or Mute
  • AFD input detection, down-convert control
  • Nominal video delay HD/SD, 1 frame


  • Hardware 10-bit
  • 4x3 Pillar: results in a 4x3 image at center screen with black sidebars
  • 14x9 Pillar: results in a 4x3 image zoomed slightly to fill a 14x9 image with black side bars
  • Full Screen: results in a 4x3 image stretched horizontally to fill in a 16x9 screen
  • Letterbox to Full: results in image zoomed to fill fullscreen
  • Wide Zoom: results in a combination of zoom and horizontal stretch to fill a 16x9 screen; this setting will introduce a small aspect ratio change


  • Hardware 10-bit
  • Crop: image is cropped to fit new screen size
  • Anamorphic: HD image is converted to full-screen SD with a 16x9 aspect ratio
  • 14x9: image is reduced slightly with aspect ratio preserved, black is added top and bottom, and the left and right sides are cropped
  • Auto AFD: automatically selects the best down-convert mode based on the input video's Active Format Description (AFD) code
  • Letterbox: image is reduced with black top and bottom added to image area with the aspect ratio preserved


  • Hardware 10-bit
  • 1080i to 720p
  • 720p to 1080i
  • 720p to 1080PsF

Aspect Ratio Conversion for
SD to SD

  • Letterbox: transforms SD anamorphic material to a letterboxed image
  • H Crop: produces a horizontally stretched effect on the image; transforms anamorphic SD to full frame
  • SD Pillarbox: produces an image in the center of the screen with black borders on the left and right sides and an anamorphized image in the center
  • V Crop: transforms SD letterbox material to an anamorphic image
  • 14x9: anamorphic to 14x9 conversion

Audio Input Digital

  • 48 kHz sample rate
  • 1x SDI embedded input
    • 16-channels, 24-bit (20-bit SD), SMPTE-272/299

Audio Output Digital

  • 48 kHz sample rate
  • 1x SDI embedded output
    • 16-channels, 24-bit (20-bit SD), SMPTE-272/299

Audio I/O

  • 16-channel embedded SDI audio input
  • 16-channel embedded SDI audio output
  • 2 or 8-channel HDMI audio output
  • 2x RCA style analog outputs at -10 dBu (nominal)

Ancillary Data

  • Supports pass-through of PCM embedded audio
  • Supports pass-through of non-PCM audio when source is in time with the selected ref (SDI In or Ext Ref).  Non-PCM audio is not supported during frame sync operation.
  • All other ANC data is not passed

Reference Input

  • External, 1x BNC
  • Blackburst or tri-level sync
  • 75-ohms terminating 


  • Lock to External Reference
  • Lock to SDI input
  • Free run


  •  The FS-Mini does not encode the HDMI output with HDCP encryption. By definition, HD-SDI inputs to the FS-Mini are unencrypted. The HDMI specification requires HDMI monitors to support unencrypted inputs.

User Interface

  • USB port used with supplied cable and Mini-Config software application to configure device via PC or Mac
  • External DIP switches

Size (w x d x h)

  • 5.8" x 3.1" x 1.0" (147.32 x 78.74 x 25.4 mm)


  • 0.7 lb (0.3 kg)


  • +5VDC Regulated, 7.0 Watts, Power Supply Required (included with purchase)


  • 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)

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