The Texas Instruments LMX2594RHAT is a wideband PLLatinum RF synthesizer generating any frequency from 10 MHz to 15 GHz without an internal doubler. It achieves -110 dBc/Hz phase noise at a 100 kHz offset and 45 fs RMS jitter, with JESD204B SYSREF support and frequency ramping. Supplied in a 40-pin VQFN, the 3.3 V device synchronises multiple outputs with deterministic phase.
Key Specifications
| Manufacturer | Texas Instruments |
| Exact Manufacturer Part Number | LMX2594RHAT |
| Product Category | Power Management – Voltage Regulators |
| Series / Family | LMX2594 |
| Package / Case | VQFN-40 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to 85°C |
| Power Supply | 3.3 V (single supply) |
| Output Frequency | 10 MHz to 15 GHz |
| Phase Noise | -110 dBc/Hz at 100 kHz offset |
| RMS Jitter | 45 fs (100 Hz–100 MHz) |
| Phase Detector | 400 MHz integer / 300 MHz fractional |
| Divider | 32-bit fractional-N |
| Output Power | Up to 7 dBm |
| SYSREF | JESD204B, 9 ps resolution |
| Lifecycle Status | Active |
| Official Documentation | View official documentation |
Key Features
- 10 MHz to 15 GHz continuous output without a doubler
- -110 dBc/Hz phase noise at 100 kHz offset
- 45 fs RMS jitter for high-speed clocking
- JESD204B SYSREF with 9 ps programmable delay
- Frequency ramping and chirp for FMCW
- Single 3.3 V supply with integrated LDOs
Applications
- Test and measurement equipment
- Radar and FMCW systems
- 5G and mmWave radio
- High-speed data converter clocking
- Aerospace and defence
Sourcing
Availability, lead time, date code and commercial terms are subject to confirmation at the time of quotation.
Quality
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FAQ
Does the LMX2594RHAT require an output doubler to reach 15 GHz?
No, its VCO covers 7.5 GHz to 15 GHz directly, so the full 10 MHz to 15 GHz range is generated without a doubler and its associated sub-harmonic filtering.
How does the LMX2594RHAT support multi-device synchronisation?
It provides output phase synchronisation with a 9 ps resolution SYSREF delay, compliant with JESD204B for clocking data converters.
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