Description
The U6359B is a single chip PLL frequency synthesizer with 3-wire bus control. This IC contains an integrated preamplifier, a high frequency prescaler, a reference frequency divider, a crystal oscillator, a phase/frequency detector together with a charge pump, a tuning voltage amplifier and 4 output ports.
   
Features
● Integrated prescaler ÷ 8 with preamplifier
● Input frequency maximum 1024 MHz
● Tuning frequency steps 62.5 kHz
● 14-bit programmable counter
● Reference oscillator with 4 MHz crystal
    and ÷ 512 counter
● Phase detector (reference frequency 7.8125 kHz)
● 4 programmable port driver
● Lock output
● Microcomputer controlled via 3-wire bus
● SO20 package