Low-Voltage 2.0 GHz PLL Frequency Synthesizer Includes On-Board 64/65 Prescaler

The MC145202 is a low–voltage single–package synthesizer with serial interface capable of direct usage up to 2.0 GHz.

The counters are programmed via a synchronous serial port which is SPI compatible. The serial port is byte-oriented to facilitate control via an MCU. Due to the innovative BitGrabber Plus registers, the MC145202 may be cascaded with other peripherals featuring BitGrabber Plus without requiring leading dummy bits or address bits in the serial data stream. In addition, BitGrabber Plus peripherals may be cascaded with existing BitGrabber peripherals.

• Maximum Operating Frequency: 2000 MHz @ – 10 dBm

• Operating Supply Current: 4 mA Nominal at 3.0 V

• Operating Supply Voltage Range (VDD and VCC Pins): 2.7 to 5.5 V

• Operating Supply Voltage Range of Phase Detectors (VPD Pin): 2.7 to 5.5 V

• Current Source/Sink Phase Detector Output Capability: 1.7 mA @ 5.0 V

1.0 mA @ 3.0 V

• Gain of Current Source/Sink Phase/Frequency Detector Controllable via Serial Port

• Operating Temperature Range: – 40 to + 85°C

• R Counter Division Range: 1 and 5 to 8191

• Dual–Modulus Capability Provides Total Division up to 262,143

• High–Speed Serial Interface: 4 Mbps

• OUTPUT A Pin, When Configured as Data Out, Permits Cascading of Devices

• Two General–Purpose Digital Outputs — OUTPUT A: Totem–Pole (Push–Pull)

with Four Output Modes

OUTPUT B: Open–Drain

• Patented Power–Saving Standby Feature with Orderly Recovery for Minimizing Lock Times, Standby Current: 30 µA

• Evaluation Kit Available (Part Number MC145202EVK)

• See Application Note AN1253/D for Low–Pass Filter Design, and AN1277/D for Offset Reference PLLs for Fine Resolution or Fast Hopping