GM6535

GM6535 GM6535 60 MHz Universal Programmable Dual PLL Frequency synthesizer GENERAL DESCRIPTIONS The GM6535 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 products with frequency operation at 60 MHz or below. 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 CT1 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. FEATURES Operating Voltage Range: 2.5 to 5.5 V Operating Temperature Range:-40 to +75¡ É Operating Power Consumption:[email protected] Maximum Operating Frequency: 60MHz@200mVp-p, VDD=2.5V 3 or 4 Pins Used for serial MCU Interface 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 Divis...