LMX2572RHAT Description

The LMX2572RHAT is a low-power, high-performance wideband synthesizer that can generate any frequency from 12.5 MHz to 6.4 GHz without using an internal doubler. The PLL delivers excellent performance while consuming just 75 mA from a single 3.3-V supply. For applications like digital mobile radio (DMR) and wireless microphones, the LMX2572RHAT supports FSK modulation. Discrete-level FSK and pulse-shaping FSK are supported. Direct digital FSK modulation is achievable through programming or pins.

LMX2572RHAT Features

Output frequency: 12.5 MHz to 6.4 GHz

Low power consumption: 75 mA at 3.3-V supply

–106-dBc/Hz Phase noise at 100-kHz offset with 6.4-GHz carrier

PLL figure of merit: –232 dBc/Hz

PLL normalized 1/f noise: –123.5 dBc/Hz

32-Bit Fractional-N divider

Remove integer boundary spurs with a programmable input multiplier

Synchronization of output phase across multiple devices

Support for JESD204B SYSREF with programmable delay

Support for ramp and chirp functions

Support for FSK direct digital modulation

Two programmable output power level differential outputs

Fast VCO calibration speed: < 20 µs

Single 3-V to the 3.5-V power supply

LMX2572RHAT Applications

Test and measurement equipment

Digital 2-way radios

Low-power radio communication systems

Satellite communication

Wireless microphones

Propriety wireless connectivity

MIMO

RADAR

High-speed data converter clocking