The Fujitsu MB15C100 series is an exclusive Intermediate Frequency (IF) band Phase Locked Loop (PLL) frequency synthesizer with pulse swallow operation. It can operate maximum at 500 MHz. The reference divider and comparison divider have fixed divide ratios, so that it is not required to set the divide ratios by a controller externally. Because the dividers are designed by means of MASK ROM method, a customer can chose them optionally. SSOP-8 and BCC-16 plastic packages are available. All of the above features help a system designer for easier as well as compact layout work. It operates with a supply voltage of 3.0 V typ. and dissipates 1.2 mA typ. (@ 300 MHz) of current realized through the use of CMOS technology.