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
● CDCEx913: 1-PLL, 3 Outputs
● CDCEx925: 2-PLL, 5 Outputs
● _CDCEx937: 3-PLL, 7 Outputs_
● CDCEx949: 4-PLL, 9 Outputs
● 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™)
● APPLICATIONS
● D-TVs, STBs, IP-STBs, DVD Players, DVD Recorders, and Printers
●All other trademarks are the property of their respective owners
