CDCE925PWR

The CDCE925 and CDCEL925 are modular PLL-based low-cost, high-performance, programmable clock synthesizers, multipliers, and dividers. They generate up to five output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230 MHz, using up to two independent configurable PLLs. The CDCEx925 has a separate output supply pin, VDDOUT, which is 1.8 V for CDCEL925 and 2.5 V to 3.3 V for CDCE925. The input accepts an external crystal or LVCMOS clock signal. In case of a crystal input, an on-chip load capacitor is adequate for most applications. The value of the load capacitor is programmable from 0 to 20 pF. Additionally, an on-chip VCXO is selectable which allows synchronization of the output frequency to an external control signal, that is, PWM signal.

Applications

• D-TVs
• STBs
• IP-STBs
• DVD Players
• DVD Recorders
• Printers

Key features

• Member of Programmable Clock Generator Family
• In-System Programmability and EEPROM
• Serial Programmable Volatile Register Nonvolatile EEPROM to Store Customer Settings
• Flexible Input Clocking Concept
• External Crystal: 8 MHz to 32 MHz On-Chip VCXO: Pull Range ±150 ppm Single-Ended LVCMOS Up to 160 MHz
• Free Selectable Output Frequency Up to 230 MHz
• Low-Noise PLL Core PLL Loop Filter Components Integrated Low Period Jitter (Typical 60 ps)
• Separate Output Supply Pins CDCE925: 3.3 V and 2.5 V CDCEL925: 1.8 V
• Flexible Clock Driver
• Three User-Definable Control Inputs [S0/S1/S2], for Example, SSC Selection, Frequency Switching, Output Enable, or Power Down
• Generates Highly Accurate Clocks for Video, Audio, USB, IEEE1394, RFID, WLAN, Ethernet, and GPS
• Generates Common Clock Frequencies Used With TI-DaVinci, OMAP, DSPs
• Programmable SSC Modulation
• Enables 0-PPM Clock Generation
• 1.8-V Device Power Supply
• Wide Temperature Range: -40°C to 85°C
• Packaged in TSSOP
• Development and Programming Kit for Easy PLL Design and Programming (TI Pro-Clock)