RF PLL synthesizer integrated circuit, double RF input both up to 1.2 GHz, power supply 2.7 to 5.5V, SMD 24-pad chip scale (3.5 x 4.5 x 1.0 mm) package, with dual modulus prescaler 8/9 or 16/17, 3-wires serial input (Data/Enable/Clock), low current consumption 4mA @ 3V
The double synthesizer is often used as first LO and LO for the second IF for the second PLL