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7812DCDA2Q-HD, 7812DCDA2Q-3G

Dual Channel 3G/HD Down-Converting Distribution Amplifier

  • VistaLINK® enabled
  • 3Gb/s enabled

The 7812DCDA2Q is a high density, dual path down-converter with integrated distribution amplifiers. -HD versions convert common HD/SMPTE ST 292 video signals to common SD/SMPTE ST 259 video signals. -3G versions support 3G/SMPTE ST 424 inputs. Each processing path simultaneously provides re-clocked copies of program inputs and SD program outputs. These modules support frame synchronization and external genlock inputs (card or frame reference) for video timing adjustments.

SD program outputs are configurable to be either NTSC/PAL or SMPTE ST 259 compliant. High quality and color frame locked NTSC/PAL outputs are generated using 12 bit composite encoders.

High quality and sharp SD outputs are generated using Evertz's proprietary scaling technology. These modules provide standard as well as user defined ARC modes. The 7812DCDA2Q series also supports AFD (SMPTE ST 2016) based steering of ARC modes and can stamp AFD signals on output video. Transitions between ARC modes based on AFD metadata are frame accurate and glitch free. Full broacast quality color correction engines are integrated into the these modules. RGB color legalization and ITU Rec. 709 →601 color space conversions are also supported.

Embedded audio on incoming video signals is de-embedded (16 channels) and re-embedded onto the SD outputs with audio delay matching video delay. Additional audio delay is also available. Audio proc is supported including per channel audio gain, channel swapping and inversion controls. Surround sound (5.1 PCM) to stereo (LtRt or LoRo) down-mixes are supported. With -AA variants, 4x analog audio outputs are available for each processing path. With -AES4 variants, two AES (4x mono) digital audio outputs are available for each processing path.

The 7812DCDA2Q series transport closed captioning and time code information from input to output with all required data translations and time code recalculations taking place.

Features

  • High quality down-conversion of common HD/SMPTE ST 292-1 video signals to common SD/SMPTE ST 259 video signals
  • Support for 3G/SMPTE ST 424 video inputs (-3G versions)
  • Dual path processing within a single module
  • DA outputs and SD PGM outputs per processing path
  • Integrated frame synchronization capabilities
  • Support for card reference or 7800FR FRAME REF
  • Software selectable SD-SDI or NSTC/PAL program outputs
  • 12 bit composite encoding engines with color frame locking
  • Evertz proprietary scaling technology
  • Support for standard and user defined ARC modes including manual and AFD (SMPTE ST 2016) driven ARC control
  • Full broadcast quality color correction engines
  • VistaLINK® capable for remote monitoring, control and configuration capabilities via SNMP; using VistaLINK® PRO, CP-2116E or CP-2232E Control Panels. VistaLINK® is available when modules are used with the 3RU 7800FR frame and a 7800FC VistaLINK® Frame Controller module in slot 1 of the frame
Block DiagramBlock Diagram

Specifications

Program Inputs
Number of Inputs1 per path
StandardSMPTE ST 292-1/SMPTE ST 259 (-HD) SMPTE ST 424/SMPTE ST 259 (-3G)
ConnectorDIN 1.0/2.3
Impedance75Ω
Return Loss> 15dB @ 1.5GHz
> 18dB @ 270MHz
Cable EQ> 400m @ 270Mb/s
> 140m @ 1.5Gb/s
Reference Belden 1694 cable
DA Program Outputs
Number of Outputs4 per path
ConnectorDIN 1.0/2.3
Impedance75Ω
Signal Level800 mV
DC Offset0V ±0.5V
Rise/Fall Times740ps SD-SDI / 270ps HD-SDI
DA2AConfigurable as 6Hz input
DA4AConfigurable as REF Input
Bi-level NTSC/PAL black ref only
SD Program Outputs
Number of Outputs4 per path
StandardsSoftware configurable as NTSC/PAL or SD-SDI
ConnectorDIN 1.0/2.3
Impedance75Ω
Return Loss> 15dB to 1.5GHz
SDI Signal Level800 mV
SDI DC Offset0V ±0.5V
SDI Rise/Fall Times740 ps nominal SD-SDI
NSTC/PAL Encoder12 bit encoding engine
NTSC/PAL Frequency Response< 0.1dB to 4.1MHz
NTSC/PAL DP< 0.5°
NTSC/PAL DG< 0.5%
NTSC/PAL SNR> 75dB
NSTC/PAL Level1.0V p-p nominal
NTSC/PAL Impedance75Ω
Analog Audio Outputs
Number of Outputs4 per path
ConnectorRemovable terminal strip
Impedance66Ω max
Output LoadsHi Z
Sampling Frequency48kHz
Frequency Response±0.1dB (20Hz to 20kHz)
AES Audio Outputs
Number of Outputs2 per path
Impedance75Ω
Sample Rate48kHz
Signal Level1V p-p

Ordering Information

7812DCDA2Q-HDDual Channel HD Down-Converting Distribution Amplifier
7812DCDA2Q-HD-AADual Channel HD Down-Converting Distribution Amplifier with Analog Audio Outputs
7812DCDA2Q-HD-AES4Dual Channel HD Down-Converting Distribution Amplifier with AES Audio Outputs
7812DCDA2Q-3GDual Channel 3G/HD Down-Converting Distribution Amplifier
7812DCDA2Q-3G-AADual Channel 3G/HD Down-Converting Distribution Amplifier with Analog Audio Outputs
7812DCDA2Q-3G-AES4Dual Channel 3G/HD Down-Converting Distribution Amplifier with AES Audio Outputs
Ordering Options
NotesRear plate must be specified at time of order - eg: [model]+3RU
Rear Plate Suffix
+3RU3RU rear plate for use with 7800FR Multiframes
Enclosures
7800FR3RU Multiframe which holds 15 single slot modules
Accessories
7800FCVistaLINK® Frame Controller
CP-2116E-HRemote Control Panel
CP-2232ERemote Control Panel