Infineon/CYPRESS CY22388ZXC-20

The CY22388 series devices feature one analog VCXO, four PLLs, up to eight clock outputs, and frequency selection capability. Frequency selection does not modify any PLL frequencies; instead, it allows users to choose among eight different output divider selections based on clock and package configuration. There is a programmable OE/PD# pin that can be configured as either an output enable pin or a power-down pin. The OE function can be programmed to disable a selected group of outputs when asserted low, while the remaining outputs continue to operate. A full-chip power-down asserted low disables all outputs, PLLs, and most active circuitry. The advantage of four PLLs is that a single device can generate up to four independent frequencies from a single crystal. Each PLL is independent and can be configured to generate a VCO frequency between 62.5 MHz and 250 MHz. Each PLL can then be divided down through a post-divider to generate the user-selected clock output frequency. Due to output buffer limitations, the maximum PLL frequency is reduced to 166 MHz in "divide-by-1" mode.

• Fully integrated PLL
• Available in compact QFN package
  • 40% smaller than 20-pin TSSOP
  • 22% smaller than 16-pin TSSOP
• Selectable output frequency
• Programmable output frequency
• Output frequency range: 1 MHz to 166 MHz
• Input frequency range: 10 MHz to 30 MHz (crystal), 1 MHz to 100 MHz (external reference)
• Analog VCXO
• Available in 16/20-pin TSSOP and 32-pin QFN packages
• 3.3 V supply voltage, optional 2.5 V output buffer

• Digital set-top boxes
• DVD recorders
• Digital televisions