GS1574
Adaptive Cable Equalizer
Description
Features
Applications
Downloads
The GS1574 is a second-generation high-speed bipolar integrated circuit designed to equalize and restore signals received over 75 Ohm co-axial cable.
The GS1574 is designed to support SMPTE 292M, SMPTE 344M and SMPTE 259M, and is optimized for performance at 270Mb/s and 1.485Gb/s.
The GS1574 features DC restoration to compensate for the DC content of SMPTE pathological test patterns.
A voltage programmable mute threshold (MCLADJ) is included to allow muting of the GS1574 output when an approximate selected cable length is reached for SMPTE 259M signals. This feature allows the GS1574 to distinguish between low amplitude SD-SDI signals and noise at the input of the device. The serial digital outputs of the GS1574 may be forced to a mute state by applying a voltage to the MUTE pin.
Power consumption is typically 270mW using a 3.3V power supply. The GS1574 is lead-free, and the encapsulation compound does not contain halogenated flame retardant.
- SMPTE 292M, SMPTE 344M and SMPTE 259M compliant
- Automatic cable equalization
- Multi-standard operation from 143Mb/s to 1.485Gb/s
- Supports DVB-ASI at 270Mb/s
- Small footprint (4mm x 4mm)
- Pb-free and Green
- Pin compatible with the GS9074 Cable Equalizer
- Manual bypass (useful for low data rates with slow rise/fall times)
- Performance optimized for 270Mb/s and 1.485Gb/s
- Typical maximum equalized length of Belden 1694A cable: 140m at 1.485Gb/s, 350m at 270Mb/s
- 50 Ohm differential output (with internal 50 Ohm pull-ups)
- Manual output mute or programmable mute based on max cable length adjus
- Single 3.3V power supply operation
- Operating temperature range: 0° to +70°
SMPTE 292M, SMPTE 344M and SMPTE 259M Coaxial Cable Serial Digital Interfaces.
|
