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7736CE2, 7736CE2-A4 & 7736CE2-A8

Dual Composite Encoder

Product ManualManual
  • VistaLINK® enabled

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
Block DiagramBlock Diagram

Specifications

Serial Video Input
StandardSMPTE ST 259-C - 525 or 625 line component
Number of Inputs2
ConnectorBNC per IEC 61169-8 Annex A
Return Loss> 15dB to 270MHz
Embedded AudioSMPTE ST 272-A
Frequency Lock Range±75ppm from nominal
Hot Switch Lock Up TimeNone or 7 frames (based on lock mode)
Analog Video Output
StandardNTSC (SMPTE ST 170), PAL (ITU624-4)
Number of Outputs2 per input video
ConnectorBNC per IEC 61169-8 Annex A
Signal Level1V nominal
Impedance75Ω
DC Offset0V ±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 Delay3µs
Maximum Delay1 frame + 3µs (+S option only)
Reference Video Input
StandardNTSC (SMPTE ST 170), PAL (ITU624-4)
Number of Inputs1
ConnectorBNC per IEC 61169-8 Annex A
Signal Level1V nominal (0.5V to 1.5V)
Frequency Lock Range±75ppm from nominal
Impedance75Ω 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
StandardNTSC (SMPTE ST 170), PAL (ITU624-4)
Number of Outputs1
ConnectorBNC per IEC 61169-8 Annex A
Signal Level1V nominal
Impedance75Ω
Return Loss> 35dB to 10MHz
Analog Audio Output-A4 and -A8 only
TypeBalanced analog audio
Number of Outputs
-A44 (2 per video channel)
-A88 (4 per video channel)
Connector
-A4Two 6 pin removable terminal strip
-A8Single 16 pin removable terminal strip
Impedance66Ω balanced
Sampling Rate48KHz
Signal Level0dB FS => 12dBu to 25dBu (user settable)
Frequency Response< ±0.05dB, 20Hz to 20kHz
Dynamic range24 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
-A42
-A84
StandardSMPTE ST 276, single ended synchronous or asynchronous PCM AES
Connector
-A4BNC per IEC 61169-8 Annex A
-A8DB15
ResolutionUp to 24 bits
Sampling Rate32kHz to 48kHz
Minimum I/O Delay3.5ms
Balanced AES Audio Inputs-A4 Version
Number of Inputs2
StandardAES3-1992, balanced synchronous or asynchronous PCM AES
ConnectorsOne 6 pin removable terminal strip
Impedance110Ω
ResolutionUp to 24 bits
Sampling Rate32kHz to 48kHz
Level2V to 7V p-p
Minimum I/O Delay3.5ms
Electrical
Voltage+12V DC
Power
7736CE210.2 watts
7736CE2-A417.75 watts
7736CE2-A818 watts
EMI/RFIComplies with FCC Part 15 Class A, EU EMC Directive
Physical
Number of Slots2

Ordering Information

7736CE2Dual Composite Encoder
7736CE2-A4Dual Composite Encoder with 4 analog outputs
7736CE2-A8Dual Composite Encoder with 8 analog outputs
Ordering Options
NotesRear plate must be specified at time of order - eg: [model]+3RU
+SFrame Synchronizer
Rear Plate Suffix
+SAStandalone Enclosure Rear Plate
+3RU3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes
Enclosures
350FRPortable Multiframe which holds 7 single slot modules
7700FR-C3RU Multiframe which holds 15 single slot modules
7800FR3RU Multiframe which holds 15 single slot modules
7801FR1RU Multiframe which holds 4 single slot modules
S7701FR7700 Series Standalone Enclosure