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The 7736CE2 series of modules are broadcast quality component serial digital to composite analog video converters with an extensive list of advanced features. The 7736CE2-A4 and 7736CE2-A8 versions offer respectively four (two per encoding channel) or eight (four per encoding channel) high quality audio digital to analog converters that can be driven from discrete AES inputs or audio embedded within the video input signal. The module features a clean (asynchronous) and a fast (synchronous) input video lock modes to handle upstream switches. In addition, control of card is via an On-Screen-Display or remotely via VistaLINK®.

Features

  • Two component serial digital inputs (525 or 625)
  • One composite analog video output per channel WITHOUT OSD text
  • Internal processing to maintain 10 bit digital video quality
  • 12 bit output video digital to analog conversion
  • One monitoring quality video output with OSD for card configuration
  • User adjustable output video processing functions: black level (brightness), gain (contrast), hue, and saturation
  • User selectable luminance and chrominance filters for different applications (i.e. broadcast vs. studio)
  • User selectable horizontal blanking interval width (narrow or normal)
  • One composite analog reference input (NTSC or PAL-B) on BNC 75Ω or high-Z (jumper configurable) input impedance
  • Video Frame synchronizer (with +S option)
  • Infinitely variable output phase
  • Freeze modes: black, freeze
  • Input video lock mode: clean or fast
  • Adjustable free running frequency. Both channels must be free running to be able to adjust frequency
  • A comprehensive on screen display for module config

Features of "-A4" and the "-A8" Options

  • 7736CE2-A4 (per video channel)

  • One half group (2 channels) of synchronous 20-bit audio may be de-multiplexed from the incoming digital video
  • 1 unbalanced (or balanced) AES audio input (up to 48kHz, 24 bits) on BNC (or terminal strip for balanced audio)
  • 2 high quality 24 bit audio channels are converted to balanced analog on 2 removable barrier strips
  • 7736CE2-A8 (per video channel)

  • One full group (4 channels) of synchronous 20-bit audio may de-multiplexed from the incoming digital video
  • 2 unbalanced AES audio input (48kHz, 24 bits) supplied via DB15 connector
  • 4 high quality 24 bit audio channels are converted to balanced analog on 2 removable barrier strips
  • 7736CE2-A4 and 7736CE2-A8

  • User selects either the de-embedded audio or the input AES audio
  • Audio delay tracks the video delay with the +S option
  • Low impedance outputs (66Ω)
  • Analog audio output levels are adjustable
  • Additional audio delay of up to 2.5 seconds
  • Audio advance of up to 1 frame, depending on video delay
  • Loss of video modes: pass audio, mute audio

Specifications

Serial Video Input

Standard SMPTE ST 259-C - 525 or 625 line component
Number of Inputs 2
Connector BNC per IEC 61169-8 Annex A
Return Loss > 15dB to 270MHz
Embedded Audio SMPTE ST 272-A
Frequency Lock Range ±75ppm from nominal
Hot Switch Lock Up Time None or 7 frames (based on lock mode)

Analog Video Output

Standard NTSC (SMPTE ST 170), PAL (ITU624-4)
Number of Outputs 2 per input video
Connector BNC per IEC 61169-8 Annex A
Signal Level 1V nominal
Impedance 75Ω
DC Offset 0V ±50mV
Return Loss > 45dB to 10MHz
Frequency Response < ±0.1dB to 4MHz (response will depend on selected filtering)
Differential Phase < 0.5° (< 0.3° typical)
Differential Gain < 0.5% (< 0.3% typical)
SNR > 75dB (both channels black video, 100kHz to 5MHz)
Control Ranges
Output Level ±10%
Black Level ±7.5IRE
Chroma Level ±10%
Hue ±15° (NTSC only)
Minimum Delay 3µs
Maximum Delay 1 frame + 3µs (+S option only)

Reference Video Input

Standard NTSC (SMPTE ST 170), PAL (ITU624-4)
Number of Inputs 1
Connector BNC per IEC 61169-8 Annex A
Signal Level 1V nominal (0.5V to 1.5V)
Frequency Lock Range ±75ppm from nominal
Impedance 75Ω or High impedance (jumper selectable)
Return Loss > 25dB to 10MHz
Max Subcarrier Jitter < 3°
Free-Running Frequency
Control Range
> ±10ppm (> ±270Hz)

Analog Monitor Video Output

Standard NTSC (SMPTE ST 170), PAL (ITU624-4)
Number of Outputs 1
Connector BNC per IEC 61169-8 Annex A
Signal Level 1V nominal
Impedance 75Ω
Return Loss > 35dB to 10MHz

Analog Audio Output

-A4 and -A8 only
Type Balanced analog audio
Number of Outputs
-A4 4 (2 per video channel)
-A8 8 (4 per video channel)
Connector
-A4 Two 6 pin removable terminal strip
-A8 Single 16 pin removable terminal strip
Impedance 66Ω balanced
Sampling Rate 48KHz
Signal Level 0dB FS => 12dBu to 25dBu (user settable)
Frequency Response < ±0.05dB, 20Hz to 20kHz
Dynamic range 24 bits when AES inputs selected, 20 bits when embedded audio selected
THD+N < 0.001% (> 100dB) @ 1kHz, -1dB FS
Crosstalk < -105dB (20Hz to 20kHz)
DC Offset < ±30mV
SNR > 110dB "A" Weighting
Inter-Channel Phase Error < ±1° (20Hz to 20kHz)

Unbalanced AES Audio Inputs

-A4 and -A8 only
Number of Inputs
-A4 2
-A8 4
Standard SMPTE ST 276, single ended synchronous or asynchronous PCM AES
Connector
-A4 BNC per IEC 61169-8 Annex A
-A8 DB15
Resolution Up to 24 bits
Sampling Rate 32kHz to 48kHz
Minimum I/O Delay 3.5ms

Balanced AES Audio Inputs

-A4 Version
Number of Inputs 2
Standard AES3-1992, balanced synchronous or asynchronous PCM AES
Connectors One 6 pin removable terminal strip
Impedance 110Ω
Resolution Up to 24 bits
Sampling Rate 32kHz to 48kHz
Level 2V to 7V p-p
Minimum I/O Delay 3.5ms

Electrical

Voltage +12V DC
Power
7736CE2 10.2 watts
7736CE2-A4 17.75 watts
7736CE2-A8 18 watts
EMI/RFI Complies with FCC Part 15 Class A, EU EMC Directive

Physical

Number of Slots 2

Ordering Information

7736CE2 Dual Composite Encoder
7736CE2‑A4 Dual Composite Encoder with 4 analog outputs
7736CE2‑A8 Dual Composite Encoder with 8 analog outputs

Ordering Options

Notes Rear plate must be specified at time of order - eg: [model]+3RU
+S Frame Synchronizer
Rear Plate Suffix
+SA Standalone Enclosure Rear Plate
+3RU 3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes

Enclosures

350FR Portable Multiframe which holds 7 single slot modules
7700FR-C 3RU Multiframe which holds 15 single slot modules
7800FR 3RU Multiframe which holds 15 single slot modules
7801FR 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules
S7701FR 7700 Series Standalone Enclosure