VT98521 Description
The VT98521 is a 3.3V CMOS, clock multiplier integrated circuit. The device provides an excellent quality high frequency output clock from a lower frequency crystal or clock input. Tri-level selection inputs S0 and S1 are used to select any one of eight multipliers, stored in the on-board ROM, and apply it to the input to produce the desired output, up to 220 MHz.
VT98521 Key Features
- = -= -= -= -= -= Low phase noise Zero ppm multiplication error Input clock frequency 5
- 50 MHz. Input crystal frequency 5
- 27 MHz Output clock frequencies up to 220 MHz. 5V-tolerant inputs and output -= -= -= -= Fully patible with all popular
- 45/55 up to 160 MHz
- 40/60 160 MHz to 220 MHz 25mA drive capability at TTL levels High-Z output for board level testing
- = For Vaishali internal test purposes only