Cable drivers are important in the video broadcast industry since they are designed to drive signals across long co-ax cables with the key criteria of having selectable slew rates in order to meet the SMPTE standards while adding little input jitter. Now is the right time to take advantage of Gennum’s latest multi-slew rate cable drivers and experience the performance advantages and system benefits from the GS348x family.
Gennum’s Latest SD/HD/3G-SDI Cable Drivers – GS348x Key Features
- SMPTE 424M, SMPTE 292M and SMPTE 259M compliant
- Capable of driving data rates up to 2.97Gb/s and supports DVB-ASI at 270Mb/s
- GS3480 offers two positive single-ended coaxial cable driving outputs
- GS3481 offers four positive single-ended coaxial cable driving outputs
- Selectable slew rates with independent ENABLE controls for each output
- Programmable pre-emphasis to +9dB in 1dB increments for each output
- Maximum output swing voltage of 2400mVpp
- Input trace equalization and robust output signal presence indicator
- No external biasing resistors required at the inputs
- GSPI serial interface for advanced features and programmability such as status information
- Supports DC coupling to industry standard differential logic commonly found on FPGAs
- Supply voltages of 2.5V or 3.3V
- Package is 24 pin QFN (4mm x 4mm)
- Temperature range -40 to +85 deg.C
- GS3480 typical power consumption is 153mW @ 2.5V supply
- GS3481 typical power consumption is 229mW @ 2.5V supply
Gennum’s Latest SD/HD/3G-SDI Cable Drivers – GS348x Key Benefits
- The GS348x derivatives offer the lowest output jitter and power consumption compared to any of the competitive offerings
- Input trace equalization supports up to 10 inches of FR4 trace loss
- Output signal presence indicates whether an active signal is present at the outputs of the GS348x
- A disable pin powers down the output drivers leaving them in a high impedance output state - saves more power
- Cable Boost ™ extends the SMPTE compliance points further downstream of the cable driver output to compensate for long traces and long cables so ideal for extended reach applications. Adjustable from 0-9dB in 1dB increments
- All outputs are non-inverted so well suited for DVB-ASI end equipment
GS348x Target Applications
Any coaxial cable based serial digital interfaces typically found in the professional video and broadcast equipment markets such as:
- Routing switches
- Video processor boards and converters
- Distribution amplifiers
- Post production equipment
- Professional cameras
- Up/down cross converters
- Test and measurement equipment
- Ideal for any long cable reach applications and where passive splitting is also utilized
- DVB-ASI equipment