Low EMI Clock Generator

The IDT5V50015 generates a low EMI output clock from a clock or crystal input. The part is designed to dither the LCD interface clock for PDAs, printers, scanners, modems, copiers, and others. Using IDT’s proprietary mix of analog and digital Phase-Locked Loop (PLL) technology, the device spreads the frequency spectrum of the output, reducing the frequency amplitude peaks by several dB.

• Packaged in 8-pin SOIC/TSSOP
• Provides a spread spectrum output clock
• 135 MHz to 200 MHz operation
• Accepts a clock input (provides same frequency dithered output)
• Center spread modulation
• Peak reduction by 8 dB to 16 dB typical on 3rd through 19th odd harmonics
• Low EMI feature can be disabled
• Operating voltage of 3.3 V
• Advanced, low-power CMOS process