GS9064A
SD-SDI Adaptive Cable Equalizer
Description
Features
Applications
Downloads
The GS9064A is a second-generation high-speed BiCMOS integrated circuit designed to equalize and restore signals received over 75 Ohm co-axial cable. The GS9064A is designed to support SMPTE 259M, and is optimized for performance at 270Mb/s.
The GS9064A features DC restoration to compensate for the DC content of SMPTE pathological test patterns. The device also incorporates a Cable Length Indicator (CLI) that provides an indication of the amount of cable being equalized.
A voltage programmable mute threshold (MCLADJ) is included to allow muting of the GS9064A output when an approximate selected cable length is reached for SMPTE 259M signals. This feature allows the GS9064A to distinguish between low amplitude SD-SDI signals and noise at the input of the device.
The bidirectional CD/MUTE pin indicates the presence of a valid signal at the input of the GS9064A in addition to functioning as a mute control input. The outputs of the GS9064A will be forced to a mute state when an invalid input reference signal is applied to the input of the device or the application layer sets the CD/MUTE pin HIGH. If the application layer forces CD/MUTE LOW, the serial digital output of the device will always be active.
Power consumption is typically 265mW using a 3.3V power supply.
The GS9064A is Pb-free, and the encapsulation compound does not contain halogenated flame retardant (RoHS Compliant).
- SMPTE 259M compliant
- Automatic cable equalization
- Supports DVB-ASI at 270Mb/s
- Pb-free and RoHS compliant
- Manual bypass (useful for low data rates with slow rise/fall times)
- Performance optimized for 270Mb/s
- Typical maximum equalized length of Belden 1694A cable: 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 adjust
- Cable length indicator for SMPTE 259M inputs
- Single 3.3V power supply operation
- Operating temperature range: 0°C to +70°C
SMPTE 259M Coaxial Cable Serial Digital Interfaces.
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