4-Bit Data Bus Input PLL Frequency Synthesizer
Interfaces with Dual–Modulus Prescalers

The MC145146–2 is programmed by a 4–bit input, with strobe and address lines. The device features consist of a reference oscillator, 12–bit programmable reference divider, digital phase detector, 10–bit programmable divide–by–N counter, 7–bit divide–by–A counter, and the necessary latch circuitry for accepting the 4–bit input data.

• Operating Temperature Range: – 40 to 85°C
• Low Power Consumption Through the Use of CMOS Technology
• 3.0 to 9.0 V Supply Range
• Programmable Reference Divider for Values Between 3 and 4095
• Dual–Modulus 4–Bit Data Bus Programming
• ÷ N Range = 3 to 1023, ÷ A Range = 0 to 127
• “Linearized” Digital Phase Detector Enhances Transfer Function Linearity
• Two Error Signal Options:
   Single–Ended (Three–State)
   Double–Ended