ICS4231-03

• Pin and function compatible to Cypress W42C31-03
• Packaged in 8-pin SOIC (Pb free available)
• Provides a spread spectrum output clock
• Accepts a clock or crystal input and provides same frequency dithered output
• Input clock frequency of 10 to 33 MHz
• Peak reduction by 8dB - 14dB typical on 3rd - 19th odd harmonics
• Spread percentage selections of ±1.875%, ±1.0%,and -2.0%
• Operating voltage of 5V
• Advanced, low-power CMOS process

Stresses above the ratings listed below can cause permanent damage to the ICS4231-03. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range.

The ICS4231-03 generates a low EMI output clock from a clock or crystal input. The device uses ICS' proprietary mix of analog and digital Phase Locked Loop (PLL) technology to spread the frequency spectrum of the output, thereby reducing the frequency amplitude peaks by several dB.

The ICS4231-03 offers four different center and down spread selections. Refer to the MK1714-01/02 for the widest selection of input frequencies and multipliers.

ICS offers a complete line of EMI reducing clock generators. Consult us when you need to remove crystals and oscillators from your board.