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