GD16585
Description
GD16585 is a 9.95328 Gbit/s transmitter chip for use in SDH STM-64 and SONET OC-192 optical munication systems. GD16585 integrates all the main functions of the transmitter, which is clock generation, PLL circuits and multiplexer in a single monolithic IC.
Key Features
- l On-chip low noise VCO with a wide tuning range
- Automated capture of the VCO frequency by a true phase and frequency detector
- Retiming of MUX stage output with 10 GHz clock
- Clock failure detection NLDET
- Phase nulling circuit for easy interfacing with the system ASIC
- 16:1 MUX with differential 622 Mbit/s LVDS data inputs
- CML data input with 50 Ω internal load termination
- LVDS compatible data and clock inputs with 100 Ω internal load termination
- 622 MHz clock output for counter clocking
- 155 MHz or 622 MHz reference clock input (selectable)
