The LMX2364 is a high-performance PLLatinum fractional frequency synthesizer that integrates a 2.6 GHz fractional frequency synthesizer and an 850 MHz low power integer-N frequency synthesizer. It is designed for use in the local oscillator subsystem of a radio transceiver, providing stable and low noise control signals for UHF and VHF voltage controlled oscillators.
The LMX2364 integrates a high-performance 2.6 GHz fractional frequency synthesizer with an 850 MHz low-power integer-N frequency synthesizer, designed for use in local oscillator subsystems of radio transceivers. It generates stable, low-noise control signals for UHF and VHF voltage-controlled oscillators using National's high performance BiCMOS process.
The device supports both fractional and integer operating modes with a flexible programmable charge pump and FastLock technology to optimize phase noise and spurious performance. It features a three-wire serial interface compatible with 1.8V logic, operates on supply voltages from 2.7V to 5.5V, and is available in 24-pin Ultra Thin CSP and TSSOP packages.
| RF Synthesizer Frequency Range (Prescaler 8/9/12/13) | 500 to 1200 MHz |
|---|---|
| RF Synthesizer Frequency Range (Prescaler 16/17/20/21) | 1200 to 2600 MHz |
| IF Synthesizer Operating Frequency | 50 to 850 MHz |
| Power Supply Voltage Range | 2.7V to 5.5V |
| Operating Temperature Range | -40°C to +85°C |
| IF Charge Pump Sink Current (Max) | 800 uA |
The RF synthesizer supports an operating frequency up to 2600 MHz when using a prescaler of 16/17/20/21.
Yes, it is a pin-compatible upgrade for the LMX2354.
The low voltage logic interface allows direct connection to 1.8 Volt and 3.0 Volt devices.