Frequency Synthesizer - Serial Input with lock detect

The ML145155 is programmed by a clocked, serial input, 16–bit data stream. The device features consist of a reference oscillator, selectable–reference divider, digital–phase detector, 14–bit programmable divide–by–N counter, and the necessary shift register and latch circuitry for accepting serial input data.
• Operating Temperature Range: TA = – 40 to 85°C
• Low Power Consumption Through Use of CMOS Technology
• 3.0 to 9.0 V Supply Range
• On– or Off–Chip Reference Oscillator Operation with Buffered Output
• Compatible with the Serial Peripheral Interface (SPI) on CMOS MCUs
• Lock Detect Signal
• Two Open–Drain Switch Outputs
• 8 User–Selectable ÷ R Values: 16, 512, 1024, 2048, 3668, 4096, 6144, 8192
• Single Modulus/Serial Programming
• ÷ N Range = 3 to 16383
• “Linearized” Digital Phase Detector Enhances Transfer Function Linearity
• Two Error Signal Options: Single–Ended (Three–State) or Double–Ended
• Chip Complexity: 6504 FETs or 1626 Equivalent Gates