Fiber-based 3G-SDI transmission and control for block cameras over an optical line

TL7075 & TL7076

The TL7075/7076 video modules provide a compact and flexible 3G/HD-SDI fiber-based transmission solution at 3Gbps. The TL7075 connects to any block camera and acts as an optical transmitter. The TL7076 is an optical receiver unit and provides copper-based 3G/HD-SDI and full HD HDMI outputs. A camera controller unit (CCU) can be connected to TL7076 via a serial RS232-based interface. Full duplex communication between CCU and camera is provided by using bidirectional optical fiber technology This allows digital video from any camera to be transmitted over long distances, with remote camera control possible via the same fiber optic cable.

TL7075/TL7076 Systemoverview

TL7075-TL7076 System overview optical fiber solution for block cameras

Features TL7075 – optical transmitter

  • =LVDS digital video input from camera
  • =Optical 3G/HD-SDI output compliant to SMPTE297M-2006
  • =SFP transceiver λTX=1310nm, SMF/LC included
  • =Local BNC coax, MCX coax and DVI (HDMI connector) 3G/HD-SDI outputs

Block diagram TL7075 – optical transmitter

TL7075 Block Diagram - 3GH HD-SDI Optical Transmitter

Features TL7076 – 3G/HD-SDI optical receiver

  • =LVDS digital video input from camera
  • =Optical 3G/HD-SDI output compliant to SMPTE297M-2006
  • =SFP transceiver λTX=1310nm, SMF/LC included
  • =Local BNC coax, MCX coax and DVI (HDMI connector) 3G/HD-SDI outputs

Block Diagram TL7076 – 3G/HD-SDI Optical Receiver

TL7076 Block Diagram Optical Receiver for 3G HD-SDI

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TL7070 Video Standard

The TL7050 supports the following HDTV video standards. Note that the availability of video standards depends on the capabilities of the camera block used.

Video standard
1080p60Hz59.94Hz50Hz30Hz29.97Hz25Hz
1080i60Hz59.94Hz50Hz
720p60Hz59.94Hz50Hz30Hz29.97Hz25Hz

Connections

TL7075-TL7076 optical Interface PCB

Connections overview

Power supply and RS232/ TTL control interface (J1)

10-pin connector: JST BM10B-SRSS-TB

1 DC In
2 DC In
3 GND
4 GND
5 Reset / Shut Down, pull to GND to reset / shut down TL7075 and camera.
6 GND
7 TXD_TTL (serial IF transmit, 3.3V) and/or temperature alert output
8 RXD_TTL (serial IF receive, 3.3V)
9 RXD_232 (serial IF receive, RS232 level)
10 TXD_232 (serial IF transmit, RS232 level)

LVDS Video (J3)

KEL 30 connector for micro coaxial cable

LVDS digital video from camera
serial control interface
Power

SFP-compatible optical bidirectional transceiver, LC connector (J9)

HDMI output connector type HDMR (J10)

Samtec No. 19-02-F-SM

3G/HD-SDI output (J11, J12)

75 ohm MCX socket

Board dimensions

TL7075-TL7076 Board-Mechanical Fiber Optic Interface for Block Cameras

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