Overview
The LMX2595RHAR from Texas Instruments is a high-performance, wideband PLLatinum™ RF synthesizer capable of generating frequencies from 10 MHz to 19 GHz. This device is designed for applications requiring low phase noise, high frequency accuracy, and flexible configuration options. It features an integrated doubler for frequencies above 15 GHz and supports phase synchronization across multiple devices, making it ideal for various high-frequency applications. The LMX2595RHAR operates on a single 3.3-V power supply and includes integrated low-dropout regulators (LDOs) to minimize the need for external low-noise power management.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Output Frequency Range | 10 MHz to 19 GHz | |
| Phase Noise at 100-kHz Offset | –110 dBc/Hz | |
| RMS Jitter at 7.5 GHz | 45 fs | |
| Figure of Merit | –236 dBc/Hz | |
| Normalized 1/f Noise | –129 dBc/Hz | |
| Phase Detector Frequency (Integer Mode) | 400 MHz | |
| Phase Detector Frequency (Fractional Mode) | 300 MHz | |
| Fractional-N Divider Bits | 32-bit | |
| VCO Calibration Speed | < 20 µs | |
| Power Supply Voltage | 3.3 V | |
| Package Type | VQFN (40-pin) | |
| Package Size | 6.00 mm × 6.00 mm |
Key Features
- Programmable output power and phase synchronization across multiple devices.
- Support for SYSREF with 9-ps resolution programmable delay, compliant with JESD204B standard.
- Frequency ramp and chirp generation ability for FMCW applications.
- High-speed N-divider with no pre-divider, reducing spurs and noise.
- Programmable input multiplier to mitigate integer boundary spurs.
- Integrated doubler for frequencies above 15 GHz.
- Fast VCO calibration speed of less than 20 µs.
- Single 3.3-V power supply operation with integrated LDOs.
Applications
- 5G and mm-Wave wireless infrastructure.
- Test and measurement equipment.
- Radar systems.
- MIMO (Multiple-Input Multiple-Output) systems.
- Phased array antennas and beam forming.
- High-speed data converter clocking (supports JESD204B).
Q & A
- What is the output frequency range of the LMX2595RHAR?
The LMX2595RHAR can generate frequencies from 10 MHz to 19 GHz.
- What is the phase noise performance of the LMX2595RHAR?
The phase noise is –110 dBc/Hz at a 100-kHz offset with a 15-GHz carrier.
- What is the RMS jitter of the LMX2595RHAR at 7.5 GHz?
The RMS jitter is 45 fs from 100 Hz to 100 MHz.
- Does the LMX2595RHAR support phase synchronization across multiple devices?
- What is the power supply voltage requirement for the LMX2595RHAR?
The device operates on a single 3.3-V power supply.
- What is the package type and size of the LMX2595RHAR?
The package type is VQFN (40-pin) with a size of 6.00 mm × 6.00 mm.
- Does the LMX2595RHAR support JESD204B standard?
- What is the VCO calibration speed of the LMX2595RHAR?
The VCO calibration speed is less than 20 µs.
- What are some of the key applications of the LMX2595RHAR?
Key applications include 5G and mm-Wave wireless infrastructure, test and measurement equipment, radar, MIMO, phased array antennas, and high-speed data converter clocking.
- Does the LMX2595RHAR have integrated low-dropout regulators (LDOs)?
