Texas Instruments CDCS503
The CDCS503 is a spread spectrum capable, LVCMOS Input Clock Buffer with selectable frequency multiplication. It shares major functionality with the CDCS502 but utilizes a LVCMOS input stage instead of the crystal input stage of the CDCS502. The device accepts a 3.3V LVCMOS signal at the input.| Part No. | CDCS503 |
|---|---|
| Datasheet | CDCS503 Download |
| Manufacturer |  Texas Instruments |
| Description | Clock Buffer/Clock Multiplier |
| Buy | Stock & Price |
FEATURES
1● Part of a Family of Easy to use Clock Generator Devices With Optional SSC
● Clock Multiplier With Selectable Output Frequency and Selectable SSC
● SSC Controllable via 2 External Pins – ±0%, ±0.5%, ±1%, ±2% Center Spread
● Frequency Multiplication Selectable Between x1 or x4 With One External Control Pin
● Output Disable via Control Pin
● Single 3.3V Device Power Supply
● Wide Temperature Range –40°C to 85°C
● Low Space Consumption by 8 Pin TSSOP Package BLOCK DIAGRAM VDD
APPLICATIONS
● Consumer and IndustrialAPPLICATIONS
requiring EMI reduction through Spread Spectrum Clocking and/ or Clock Multiplication PACKAGE IN 1 SSC_SEL 0 2 SSC_SEL 1 3 GND 4 CDCS503 8 VDD 7 OE 6 OUT 5 FS GND IN SSC_SEL 0 SSC_SEL 1 FS OE LVCMOS x1 or x4 / SSC Control Logic LV CMOS OUTDESCRIPTION
Also an Output Enable pin has been added to the CDCS503. The input signal is processed by a PLL, whose output frequency is either equal to the input frequency or multiplied by the factor of 4. The PLL is also able to spread the clock signal by ±0%, ±0.5%, ±1% or ±2% centered around the output clock frequency with a triangular modulation.
