Overview
The LMX2595RHAT is a high-performance, wideband RF synthesizer and phase-locked loop (PLL) device produced by Texas Instruments. This component is designed to generate frequencies from 10 MHz to 20 GHz, making it highly versatile for various RF and microwave applications. It features an integrated voltage-controlled oscillator (VCO) and advanced PLL architecture, which provide low phase noise, high frequency resolution, and excellent spurious performance. The device is particularly suited for applications requiring precise frequency synthesis, such as 5G and mm-Wave wireless infrastructure, test and measurement equipment, radar systems, and high-speed data converter clocking.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Integrated VCO | Yes | Output frequency (min) (MHz) | 100 |
| Output frequency (max) (MHz) | 19000 | Normalized PLL phase noise (dBc/Hz) | -236 |
| Current consumption (mA) | 340 | 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) | -129 |
| Phase noise at 100-kHz offset (dBc/Hz) | -110 | RMS jitter at 7.5 GHz (fs) | 45 |
| Operating temperature range (°C) | -40 to 85 | Supply voltage (V) | 3.3 |
| Package type | VQFN-40 | Package size (mm) | 6.00 x 6.00 |
Key Features
- Integrated VCO with a tuning range of 10 kHz to 6.5 GHz
- Low phase noise performance: -110 dBc/Hz at 100-kHz offset with a 15-GHz carrier
- 45-fs rms jitter at 7.5 GHz (100 Hz to 100 MHz)
- Programmable output power up to 7 dBm at 15-GHz carrier frequency
- Fractional-N PLL architecture for high frequency resolution and agility
- No pre-divider in the high-speed N-divider, reducing spurs
- Programmable input multiplier to mitigate integer boundary spurs
- Synchronization of output phase across multiple devices
- Support for SYSREF with 9-ps resolution programmable delay (compliant to JESD204B standard)
- Frequency ramp and chirp generation ability for FMCW applications
- 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 and phased array antennas and beam forming
- High-speed data converter clocking (supports JESD204B)
- Coherent communication systems
- Aerospace and defense applications
Q & A
- What is the frequency range of the LMX2595RHAT?
The LMX2595RHAT can generate frequencies from 10 MHz to 20 GHz, with an integrated doubler for frequencies above 15 GHz.
- What is the phase noise performance of the LMX2595RHAT?
The LMX2595RHAT has a phase noise performance of -110 dBc/Hz at 100-kHz offset with a 15-GHz carrier.
- What is the RMS jitter of the LMX2595RHAT at 7.5 GHz?
The RMS jitter is 45 fs at 7.5 GHz (100 Hz to 100 MHz).
- Does the LMX2595RHAT support SYSREF?
Yes, it supports SYSREF with 9-ps resolution programmable delay, compliant to the JESD204B standard.
- What is the power supply requirement for the LMX2595RHAT?
The device operates from a single 3.3-V power supply.
- What package type and size does the LMX2595RHAT come in?
The LMX2595RHAT is available in a VQFN-40 package with dimensions of 6.00 mm x 6.00 mm.
- What are some common applications of the LMX2595RHAT?
Common applications include 5G and mm-Wave wireless infrastructure, test and measurement equipment, radar systems, MIMO, phased array antennas, and high-speed data converter clocking.
- How does the LMX2595RHAT mitigate integer boundary spurs?
The device uses a programmable input multiplier to mitigate integer boundary spurs.
- Can the LMX2595RHAT synchronize the output of multiple devices?
Yes, it can synchronize the output phase across multiple devices.
- What is the VCO calibration speed of the LMX2595RHAT?
The VCO calibration speed is less than 20 µs.
- Does the LMX2595RHAT support frequency ramp generation?
Yes, it supports frequency ramp and chirp generation for FMCW applications.
