Description: Clock Generators have the ability to generate up to nine output clock sources from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230 MHz. These features provide a number of system benefits such as reduced power consumption, shorter lead time and the flexibility to easily upgrade the clock without redesigning the system. These benefits ultimately reduce cost for a broad range of consumer applications such as IP set-top boxes or phones, digital media systems such as digital televisions, streaming media and printers, navigation systems & portable devices. The new CDCE9xx and CDCEL9xx family of clock generators ranges from one to four PLLs with very low fitter at 60 picoseconds typical. The CDCE9xx devices provide either 2.5-V or 3.3-V outputs, or the CDCEL9xx provide 1.8V outputs, enabling the low-power capability needed for portable devices. Each PLL supports spread-spectrum clocking (SSC) to reduce electro-magnetic interference (EMI) to enable compliance with EMC regulations. The new clock devices are optimized to work with TI's DaVinci-based processors by generating any audio, video, processor or interface clock to drive the digital processor, audio digital-to-analog converter or codec and Ethernet or USB controller. The on chip voltage-controlled crystal oscillator (VCXO) allows frequency synchronization of different data streams. The company provides a wide selection of timing support devices, both PLL-based and non-PLL-based, to support consumer, communications and memory applications.
