LMX2377U is a ultra-low power dual frequency synthesizer from Linear Technology. It adopts a proprietary digital phase lock technique and can generate very stable, low noise control signals for UHF and VHF voltage controlled oscillators. The device features synchronous or asynchronous powerdown mode, and typically consumes 3.5 mA at 3.0V. LMX2377U is available in 20-Pin TSSOP, 24-Pin CSP and 20-Pin UTCSP packages.
The LMX2377U is a PLLatinum Ultra Low Power Dual Frequency Synthesizer intended for use as a local oscillator in dual conversion radio transceivers. It features selectable 16/17 or 32/33 prescale ratios for the Main synthesizer and 8/9 or 16/17 for the Aux synthesizer, utilizing proprietary digital phase lock techniques to generate stable control signals.
| Power Supply Voltage (Vcc) | 2.7V to 5.5V |
|---|---|
| Typical Current Consumption | 3.5 mA at 3.0V |
| Aux Synthesizer Operating Frequency | 45 to 1200 MHz |
| Operating Temperature Range | -40°C to +85°C |
It is designed to serve as a local oscillator for both the first and second RF stages of a dual conversion radio transceiver.
The device supports supply voltages ranging from 2.7V to 5.5V.
The LMX2377U features ultra low current consumption, typically 3.5 mA at 3.0V.