The ML145162 is a dual phase-locked loop (PLL) frequency synthesizer designed for CT-1 cordless phone applications and other devices operating at frequencies up to 60 MHz. It features fully programmable receive, transmit, reference, and auxiliary reference counters, which can be accessed via a serial interface with a microcontroller. The device includes two independent phase detectors for transmit and receive loops, and a common reference oscillator that drives two reference frequency counters. The operating voltage range for the ML145162 is from 2.5 to 5.5 V, with a power consumption of 3.0 mA at 2.5 V. It supports an operating temperature range of -40 to +75¬8C. The maximum operating frequency is 60 MHz, and the device can utilize external crystals up to 16.0 MHz. The reference frequency counter division range is from 16 to 4095, while the auxiliary reference frequency counter can divide from 16 to 16,383. The transmit and receive counter division ranges extend from 16 to 65,535. The ML145162 is available in both plastic DIP and SOG packages, and it includes features such as a built-in MCU clock output, power-saving mode, and lock detect signal. This device is suitable for applications requiring precise frequency synthesis and low power consumption.