TI CDCE937PWR

The CDCE937 and CDCEL937 devices are modular PLL-based low cost, high-performance, programmable clock synthesizers, multipliers and dividers. They generate up to 7 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 three independent configurable PLLs. The CDCEx937 has separate output supply pins, VDDOUT, which is 1.8 V for CDCEL937 and to 2.5 V to 3.3 V for CDCE937. The input accepts an external crystal or LVCMOS clock signal. If an external crystal is used, 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.

• Member of Programmable Clock Generator Family
• In-System Programmability and EEPROM
• Serial Programmable Volatile Register Nonvolatile EEPROM to Store Customer Setting
• 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
• CDCE937: 3.3 V and 2.5 V CDCEL937: 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, Bluetooth, 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)

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