NOTICE - The following device(s) are recommended alternatives:
The 840NT4 is a PLL-based clock generator designed to interface with Freescale B4/T4 Processor systems. The clock generator offers low jitter, low-skew clock outputs, frequency margining (0.025 - 0.312MHz step granularity), and spread spectrum clocking that meets the ever-growing demands of Freescale’s next generation
processors.
Features
- Ten LVCMOS clock outputs: four system clocks, four DDR clocks, one RTC output, and one 25MHz reference clock
- Selectable input reference: crystal oscillator interface or differential LVPECL input
- Output Frequency Range: 25MHz - 200MHz
- Serial Interface: I2C programmable
- Frequency Margining in <0.312MHz steps
- Spread spectrum for EMI reduction
- VCO range: 2GHz – 2.4GHz
- Voltage supply modes:
Core (VDD, VDDXTAL, VDDA) all core voltages must be identical
Output (VDDO_A,VDDO_B, VDDO_C, VDDO_REF0, VDDO_REF1)
Core / Output
3.3V / 3.3V
3.3V / 2.5V
3.3V / 1.8V
2.5V / 2.5V
2.5V / 1.8V - Output voltage levels are independently selectable
- -40°C to 85°C ambient operating temperature
- Lead-free (RoHS 6) packaging