3G-SDI to HDMI Scaler with Audio Embedding
Key Features
  • 3G‑SDI, HD‑SDI, and SDI to HDMI video scaling
  • Accepts 3G‑SDI/HD‑SDI/SDI signals up to 2.97 Gbps
  • Advanced scaling engine with 30‑bit precision processing and motion-adaptive deinterlacing for signals up to 1080i
  • HDMI audio embedding
  • Selectable output rates from 640x480 to 1920x1200, including 1080p/60 and 2K
  • Input equalization and reclocking on buffered loop‑through
The Extron DSC 3G-HD A
Model Version Description Part #
DSC 3G-HD A 3G-SDI to HDMI Scaler 60-1303-01

The Extron DSC 3G‑HD A is a high performance 3G‑SDI to HDMI scaler that converts 3G‑SDI, HD‑SDI, and SDI signals to HDMI. It accepts and scales SMPTE video resolutions from 480i and 576i up to 1080p/60 and 2K, and offers multiple output rates up to 1920x1200, including 1080p/60 and 2K. The DSC 3G‑HD A features advanced Extron video signal processing with deinterlacing of signals up to 1080i, and Deep Color processing. Stereo audio embedding and an SDI input loop‑through facilitate integration in demanding professional environments, while the compact enclosure simplifies installation. The DSC 3G‑HD A is ideal for applications requiring broadcast-type signals to be interfaced with professional or consumer-level equipment, including video editing and production, rental and staging, medical imaging, and large-scale presentations.

High Performance Video Processing

The DSC 3G‑HD A provides high performance deinterlacing of all interlaced signals up to 1080i, and Deep Color processing to deliver optimal image quality. Additionally, the color space and chroma subsampling of the HDMI output can be automatically set to ensure compatibility with a connected DVI or HDMI display. Automatic 3:2 and 2:2 pulldown detection maximizes image quality for content sources originating from film.

To enhance and simplify integration, the DSC 3G‑HD A offers automatic input equalization and reclocking on the buffered SDI loop-through. Input equalization restores and reshapes incoming 3G‑SDI signals, reducing the need for additional signal conditioning equipment by compensating for weak source signals or signal loss from a long input cable.

Selectable FILL and FOLLOW modes are also available to ensure the proper aspect ratio of the output. FILL mode provides full screen output, while FOLLOW mode preserves the original aspect ratio of the input signal.

Enhanced Audio Capabilities

The DSC 3G‑HD A offers enhanced audio capabilities, including HDMI audio embedding, input gain and attenuation controls, and input audio muting. To suit the needs of the application, the scaler can embed analog input audio signals or up to four pairs of AES audio channels from the SDI input onto the HDMI output. The DSC 3G‑HD A provides gain and attenuation adjustments for the analog stereo input, as well as the ability to mute the audio input.

Multiple Options for Control and Operation

The DSC 3G‑HD A features front panel controls for quick access to functions. Remote configuration and control are available via RS‑232 and USB. The on-screen menus provide control over the unit's functions and settings, including quick access to key parameters such as input and output video formats and resolutions. Additionally, LED indicators on the front panel provide visual confirmation of input and output signal format, and signal presence. The DSC 3G‑HD A is housed in a 1U, half rack width metal enclosure and can be easily integrated into a variety of environments.


  Half Rack Shelf System Half-Rack Width Rack Shelf and Accessories
  MBU 125 Low-Profile Mount Kit for 1/4 and 1/2 Rack Width, Two-Piece Enclosures
  RSB 129 Basic Rack Shelf for 9.5" Deep Products
  RSU 129 Universal Rack Shelf Kit for 9.5" Deep Products
  USB CFG Cable USB A Male to USB Mini B Male Configuration Cable


Video input
   Number/signal type (1) 3G/HD/SD-SDI digital video
   Connectors 1 female BNC, 1 female BNC loop-through
   Nominal level 0.8 Vp-p 
   Impedance 75 ohms 
   Horizontal frequency 15 kHz to 70 kHz
   Vertical frequency 24 Hz to 60 Hz
   Resolution range 480i, 576i, 720p, 1080i, 1080PsF, 1080p, and 2K (2048x1080)
   Return loss ≥15 dB @ 5 MHz to 1.5 GHz
   Input cable equalization Automatic for up to -30 dB of cable loss 
      3G-SDI 60 m (200') using Extron RG6 cable
45 m (150') using Extron RG59 cable
      HD-SDI 120 m (400') using Extron RG6 cable
90 m (300') using Extron RG59 cable
      SD-SDI 150 m (500') using Extron RG6 cable
120 m (400') using Extron RG59 cable 
   Operation standards SMPTE 259M-C, 292M, 424M
Video processing
   Digital sampling 10 and 12 bits per color; 148.5 MHz (pixel clock)
   Colors 1.07 billion (10-bit processing)
Video output
   Number/signal type 1 HDMI/DVI
   Connectors 1 female HDMI type A
   Scaled resolutions 640x4808, 800x6008, 1024x7688, 1024x10248, 1280x7688, 1280x8008, 1280x10248, 1360x7688, 1366x7688, 1400x10508, 1440x9008, 1600x9008, 1600x12008, 1680x10508, 1920x12008
HDTV 480p7,8, 576p6, 720p3,4,5,6,7,8, 1080i6,7,8, 1080p1,2,3,4,5,6,7,8, 2K (2048x1080)1,2,3,4,5,6,7,8
1 = at 23.98 Hz, 2 = at 24 Hz, 3 = at 25 Hz,4 = at 29.97 Hz, 5 = 30 Hz, 6 = at 50 Hz, 7 = at 59.94 Hz, 8 = at 60 Hz
   Frequency response 20 Hz to 20 kHz, ±0.5 dB
   THD + Noise <0.1% @ 1 kHz, 20 kHz bandwidth at nominal level
   S/N >90 dB, at maximum output (unweighted)
   Stereo channel separation >80 dB @ 1 kHz
Audio input
   Number/signal type 1 SDI embedded AES3 audio (SMPTE 272M, SMPTE 299M)
1 stereo/mono, balanced/unbalanced
   Connectors 1 female BNC
(1) 5 pole captive screw
   Impedance 10k ohms unbalanced, >20k ohms balanced
   Nominal level +4 dBu (1.23 Vrms), -10 dBV (316 mVRMS), adjustable
   Maximum level +21 dBu balanced, +15 dBu unbalanced
   Input gain adjustment -18 dB to 0 dB, 1 dB steps (SDI)
-18 dB to +12 dB, 1 dB steps (analog)
    NOTE     0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
Audio output
   Number/signal type 1 HDMI, embedded audio (PCM)
   Connectors 1 female HDMI type A
   Serial control port 1 RS-232, 3 pole captive screw connector
   Serial control pin configuration Pin 1 = Tx, pin 2 = Rx, pin 3 = ground
   Baud rate and protocol 9600 (default), 8 data bits, 1 stop bit, no parity
   USB control port 1 female mini USB-B
   USB standards USB 2.0, high speed
   Program control On-screen display (OSD) via front panel control
Extron Simple Instruction Set (SIS)
   Power supply Internal
Input: 100-240 VAC, 50-60 Hz 
   Power consumption 10.5 watts
   Temperature/humidity Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
   Cooling Fan, air flows from front to rear.
   Thermal dissipation 34.5 BTU/hr
      Rack mount Yes, with optional rack shelf
      Furniture mount Yes, with optional under-desk mounting kit
   Enclosure type Metal
   Enclosure dimensions 1.66" H x 8.69" W x 8.6" D (1U high, half rack wide)
(4.2 cm H x 22.1 cm W x 22 cm D)
(Depth excludes connectors.)
   Product weight 1.8 lbs (0.8 kg)
   Shipping weight 3 lbs (2 kg)
   Vibration ISTA/NSTA 1A in carton (International Safe Transit Association)
   Regulatory compliance 
      Safety CE, c-UL, UL
      EMI/EMC CE, C-tick, FCC Class A, ICES, VCCI
   Product warranty 3 years parts and labor
   Everlast power supply warranty 7 years parts and labor
    NOTE     All nominal levels are at ±10%.
    NOTE     Specifications are subject to change without notice.
Shipping Dimensions and Weights
    Part # Height Width Depth Weight
    60-1303-01 4.5" (11.4 cm) 14.25" (36.2 cm) 13.25" (33.7 cm) 3.22 lbs (1.46 kg)


Application Diagram

Panel Drawing

Panel Drawing
© 2020 Extron. Specifications are subject to change without notice.