MC145165

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145165/D MC145165 Low-Voltage 60 MHz Universal Programmable Dual PLL Frequency Synthesizer CMOS The MC145165 is a low–voltage 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. This chip is suitable for any portable RF products which use two 1.2 V chargeable Ni–Cd batteries. The feature of low operating voltage can reduce the current consumption and the cost of the portable RF products by reducing the number of batteries used. The device features fully programmable receive, transmit, reference, and auxiliary reference counters accessed through an MCU serial interface. This feature allows this device to operate in any CT–1 cordless phone application. The device consists of two independent phase detectors for transmit and receive loops. A common reference oscillator, driving two independent reference frequency counters, provides independent reference frequencies for transmit and receive loops. The auxiliary reference counter allows the user to select an additional reference frequency for receive and transmit loops if required. All of the functions and features of the MC145165 are fully compatible with the MC145162. Operating Voltage Range: 1.8 to 3.6 V Operating Temperature Range: – 40 to + 75°C Operating Power Consumption...