Document
CY2544 CY2546 CY2548
Quad PLL Programmable Clock Generator with Spread Spectrum
Quad PLL Programmable Clock Generator with Spread Spectrum
Features
■ Four fully integrated phase locked loops (PLLs) ■ Input frequency range
❐ External crystal: 8 to 48 MHz for CY2544 and CY2546 ❐ External reference: 8 to 166 MHz clock ■ Reference clock input voltage range ❐ 2.5 V, 3.0 V, and 3.3 V for CY2548 ❐ 1.8 V for CY2544 and CY2546 ■ Wide operating output frequency range ❐ 3 to 166 MHz ■ Programmable spread spectrum with center and down spread option and Lexmark and Linear modulation profiles ■ VDD supply voltage options: ❐ 2.5 V, 3.0 V, and 3.3 V for CY2544 and CY2548 ❐ 1.8 V for CY2546 ■ Selectable output clock voltages: ❐ 2.5 V, 3.0 V, and 3.3 V for CY2544 and CY2548 ❐ 1.8 V for CY2546 ■ Frequency select feature with option to select eight different frequencies over nine clock outputs ■ Power down, output enable, and SS ON/OFF controls ■ Low jitter, high acc.