LMX2595RHAR – TEXAS INSTRUMENTS

The LMX2595RHAR is a highly integrated fractional-N frequency synthesizer from Texas Instruments, optimized for low phase noise and fast settling time in demanding applications. It operates from a 2.7V to 3.6V supply voltage, drawing a typical current of 110mA. Packaged in a 10-pin, 3x3mm QFN package, it boasts a wide frequency range, generating output frequencies from 300MHz to 2600MHz with a channel spacing as low as 1Hz. The device utilizes a fractional-N architecture with a 32-bit accumulator, delivering excellent spurious performance (-70dBc typical). Its integrated VCO, charge pump, and loop filter simplify design, reducing external component count._x000D_
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Key advantages include its fast lock time (typically <10µs), enabling rapid frequency hopping, and its low jitter, crucial for high-speed data transmission and coherent communication systems. Common use cases include software-defined radios (SDRs), high-speed data converters, and instrumentation where precise frequency control and minimal phase noise are paramount. The LMX2595RHAR's integrated features and superior performance make it a compelling choice when system size, power consumption, and spectral purity are critical design constraints. The high-resolution fractional-N synthesis allows for fine-grained frequency adjustment, eliminating the need for external frequency dividers in many applications.