7746FSE & 7746FS-EAES4

SD-SDI Frame Synchronizer

The 7746FSE series SDI Frame Synchronizers are designed to re-time a SMPTE 259M (625i/50, 525i/59.94) input to a local sync signal. When necessary, frames are repeated or dropped to maintain synchronization. During the synchronizing process the video delay varies from 3 lines through to 1 frame plus 3 lines. Additional delay can be added to the synchronizing process in 1 frame increments.

The 7746FSE is currently available in two versions to suit various application requirements. (See Model Comparison chart below)

On the 7746FSE version the video and embedded audio are synchronized. On the 7746FSE-EAES4 version, the user can choose to have either two groups from the upstream embedded audio or audio from the 4 AES inputs embedded on the output video and output as AES. Both versions can also pass all VANC data. When the input video is lost, it will pass the input AES or mute if embedded audio is selected for synchronizing. The frame synchronizers also have the ability to set the audio delay independently from the video delay.

The frame synchronizers have the ability to adjust video parameters such as brightness, contrast, saturation and hue. The 7746FSE products can adjust audio parameters such as gain, mixing stereo pairs into monaural and reassignment of audio channels.

The card functions can be controlled from the card edge or through the VistaLINK® interface.

Features

Synchronizes 525i/59.94 or 625i/50
Minimum video input to output delay - 3 lines
Maximum video input to output delay - 1 frame plus 3 lines
12 additional frames of delay can be added for interlaced video formats
Program Video output bypass relay protected on power loss
Programmable output phase with respect to reference input
Freeze on last good frame, or field, go to black on loss of video or pass input
Synchronizes 2 groups of embedded audio and re-embeds 2 groups
Audio Sample Rate Converters can be disabled for Dolby E support
Independently adjustable audio levels on all channels
Ability to combine stereo pairs to monaural
Reassignment of audio channels within the embedded groups
Front panel LEDs indicate: module fault, video and audio present
Serial remote data logging
Adjustable video black level (brightness), Y level (contrast) and chroma level (saturation), colour (hue)
AFD insertion

Maximum audio input to output delay - equivalent to additional frames of video delay
Separate control of video and audio delay
Audio Sample Rate Converters can be disabled
Independently adjustable audio levels on all channels
Ability to combine stereo pairs to monaural
Reassignment of audio channels
VistaLINK® capable for remote monitoring, control and configuration capabilities via SNMP; using VistaLINK® PRO, 9000NCP or 9000NCP2 Network Control Panel. VistaLINK® is available when modules are used with the 3RU 7800FR frame and a 7700FC VistaLINK® Frame Controller module in slot 1 of the frame
EAES4 Version
Synchronizes four external AES signals
Synchronized audio is output as 4 AES signals
AES outputs bypass relay protected on power loss

Model Comparison

Model	Synchronizes			AES Audio
Model	Video	Embedded Audio	AES Audio	Inputs	Outputs
7746FSE	Yes	Demux and Mux, 2 groups	None	-	-
7746FS-EAES4	Yes	Demux and Mux, 2 groups	4	4	4

Specifications

Serial Video Input
Standard	SMPTE 259M-C, 525i/59.94 or 625i/50
Number of Inputs	1
Connector	BNC per IEC 61169-8 Annex A
Equalization	Automatic 300m @ 270Mb/s Belden 1694A (or equivalent)
Return Loss	> 15dB to 270MHz

Serial Video Output
Standard	Same as input
Number of Outputs	2 (1 bypass relay protected)
Connector	BNC per IEC 61169-8 Annex A
Signal Level	800mV nominal
DC Offset	0V ±0.5V
Rise/Fall Time	900ps nominal
Overshoot	< 10% of amplitude
Wideband Jitter	< 0.10UI

Genlock Input
Standard	NTSC or PAL Color black 1V p-p or Composite Bi-level sync (525i/59.94 or 625i/50) 300mV
Number of Inputs	1
Connector	BNC per IEC 61169-8 Annex A
Termination	75Ω (jumper selectable)

AES Audio Input/Output7746FS-EAES4 Version
Standard	SMPTE 276M, single ended synchronous or asynchronous AES
Number of Inputs	4
Number of Outputs	4
Connector	BNC per IEC 61169-8 Annex A
Resolution	24 bits
Sampling Rate	48kHz
Impedance	75Ω unbalanced
Signal Level	1V p-p nominal

Processing Functions
Video
Black Level	± 7%
Luminance Gain	± 6dB
Chrominance Gain	± 6dB
Hue	± 20°
Audio
Gain	± 24dB
Remapping	Any input or mono mix of any L/R pair to any output

Input to Output Processing Delay
Video
Minimum Mode	3 lines to one frame + 3 lines
Additional Mode	Up to 12 frames of additional delay (1 frame increments)

Data Logging Serial Port
Standard	RS-232
Connector	Female DB-9 (software upgrade cable)
Baud Rate	57,600
Format	8 bits, no parity, 2 stop bits

Electrical
Voltage	+12V DC
Power	12 Watts (7746FSE) or 15.5 Watts (7746FS-EAES4)
EMI/RFI	Complies with FCC Part 15 Class A, EU EMC Directive

Physical
Number of Slots
7700 Frame Mounting	1 (7746FSE) or 2 (7746FS-EAES4)
7701 Frame Mounting	1

Ordering Information

7746FSE	SD-SDI Frame Synchronizer
7746FS-EAES4	SD-SDI Frame Synchronizer with AES support - 4 AES audio pairs and embedded audio processing

Ordering Options
Notes	• Rear plate must be specified at time of order - eg: [model]+3RU

+IG	Integrated IntelliGain™ Audio and Loudness Processor

Rear Plate Suffix
+3RU	3RU rear plate for use with 7800FR, 7700FR-C or 350FR Multiframes
+1RU	1RU rear plate for use with 7701FR Multiframe
+SA	Standalone Enclosure Rear Plate

Enclosures
350FR	Portable Multiframe which holds 7 modules
7700FR-C	3RU Multiframe which holds 15 modules
7800FR	3RU Multiframe which holds 15 modules
7701FR	1RU Multiframe which holds 3 modules
S7701FR	7700 Series Standalone Enclosure

Accessories
7700FC	VistaLINK® Frame Controller
9000NCP	1RU VistaLINK® General Purpose Network Control Panel
9000NCP2	2RU VistaLINK® General Purpose Network Control Panel

7746FSE Info