Infineon CY25404ZXI226

The CY25404 features four programmable PLLs capable of generating output frequencies from 3 to 166 MHz. The advantage of having four PLLs is that a single device can generate up to four independent frequencies from a single crystal. The input can be either a crystal or a clock signal, with a crystal input frequency range of 8 MHz to 48 MHz and a clock signal input frequency range of 8 MHz to 166 MHz. The device offers programmable supply options, configurable for 2.5 V, 3.0 V, or 3.3 V operation. Nine clock outputs are divided into three output driver banks, each capable of using an independent supply of 1.8 V, 2.5 V, 3.0 V, or 3.3 V, independent of the VDD supply. Each clock output has a programmable input source with five available clock sources to choose from. Two of the four PLLs (PLL3 and PLL4) feature spread spectrum functionality to reduce EMI in the system. The spread spectrum function can be enabled or disabled via a multifunction control pin, with configurable center spread range of ±0.125% to ±2.50%, or down spread range of -0.25% to -5.0%. Three additional multifunction frequency select pins allow selection of eight different frequency sets across the four PLLs, and each output has programmable output divider options.

• Four fully integrated PLLs
• Input frequency range: external crystal 8 to 48 MHz, external reference 8 to 166 MHz clock
• Wide operating output frequency range: 3 to 166 MHz
• Programmable spread spectrum with center and down spread options, and Lexmark and linear modulation profiles
• Selectable VDD supply voltage options: 2.5 V, 3.0 V, and 3.3 V
• Selectable output clock voltage, independent of VDD supply: 1.8 V, 2.5 V, 3.0 V, and 3.3 V
• Frequency select function: eight different frequencies selectable across nine clock outputs
• Output enable and spread spectrum on/off control
• Low jitter, high-precision outputs
• Fractional-N capability for synthesizing non-standard frequencies
• Up to nine clock outputs with programmable drive strength
• Glitch-free output during frequency switching
• 20-pin TSSOP package
• Commercial and industrial temperature ranges

• PC
• Consumer Electronics
• Portable Devices
• Networking Applications