60 MHz and 85 MHz Universal Programmable Dual PLL Frequency Synthesizers

CMOS

The MC145162 is a dual phase–locked loop (PLL) frequency synthesizer especially designed for CT–1 cordless phone applications worldwide. This frequency synthesizer is also for any product with a frequency operation at

60 MHz or below.

The MC145162–1 is a high frequency derivative of the MC145162, for products with operating frequencies of 85 MHz or below.

• Operating Voltage Range: 2.5 to 5.5 V

• Operating Temperature Range: – 40 to + 75°C

• Operating Power Consumption: 3.0 mA @ 2.5 V

• Maximum Operating Frequency:

MC145162 — 60 MHz @ 200 mV p–p, VDD = 2.5 V

MC145162–1 — 85 MHz @ 250 mV p–p, VDD = 2.5 V

• Three or Four Pins Used for Serial MCU Interface

• Built–In MCU Clock Output with Frequency of Reference Oscillator
÷3/
÷4

• Power Saving Mode Controlled by MCU

• Lock Detect Signal

• On–Chip Reference Oscillator Supports External Crystals to 16.0 MHz

• Reference Frequency Counter Division Range: 16 to 4095

• Auxiliary Reference Frequency Counter Division Range: 16 to 16,383

• Transmit Counter Division Range: 16 to 65,535

• Receive Counter Division Range: 16 to 65,535