| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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2,010 pcs
|
2010 pcs | On Request | 1 | On Request | On Request | 24+ | On Request | On Request |
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| Differential | |
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| PLL | |
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The LMX2581ESQE/NOPB from Texas Instruments is a low-noise, wideband frequency synthesizer featuring an integrated delta-sigma fractional N PLL, VCO, and output buffers. It supports output frequencies up to 3.8 GHz and input clock frequencies up to 900 MHz.
This device offers programmable fractional and integer modes, with excellent phase noise performance, including -229 dBc/Hz normalized PLL phase noise and -137 dBc/Hz VCO phase noise at 1 MHz offset for a 2.5 GHz carrier. It achieves 100 fs RMS jitter in integer mode. The output power is programmable up to 12 dBm at 2700 MHz.
Designed for flexibility, the LMX2581ESQE/NOPB operates from a single supply voltage of 3.15 V to 3.45 V and supports logic levels down to 1.6 V. It features a 3-wire serial interface and readback capability, along with digital lock detect. Integrated low-noise LDOs enhance noise immunity and performance consistency.
The component is housed in a 32-WQFN exposed pad package, suitable for surface mounting. It operates within a temperature range of -40°C to 85°C.
| Qty | Low | High |
|---|---|---|
| 1+ | $7.35 | $7.35 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The output frequency is 3.8 GHz.
It supports an input clock frequency of up to 900 MHz.
The phase detector frequency is 200 MHz.
The VCO phase noise at 1 MHz offset for a 2.5 GHz carrier is -137 dBc/Hz.
It is packaged in a 32-WFQFN exposed pad surface-mount package.
-40°C to 85°C.
RoHS3 compliant.