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TI LMX2491RTWR product image
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TI LMX2491RTWRRoHS

Manufacturer
TI
MPN
LMX2491RTWR
LCSC Part #
C2651213
Packaging
WQFN-24-EP(4x4)
Customer #
Key Attributes
Low-noise wideband RF PLL with ramp/chirp generation function
Datasheetpdf iconTI LMX2491RTWR
In-Stock: 48
48 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 8.6752$ 8.68
10+$ 7.4522$ 74.52
30+$ 6.7079$ 201.24
100+$ 6.0826$ 608.26
Standard Packaging1000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Clock/Timing/Clock Generators, PLLs, Frequency Synthesizers
ManufacturerTI
PackagingWQFN-24-EP(4x4)
Operating Temperature-40℃~+125℃
Clock/OscillatorExternal
Output Frequency(Max)6.4GHz
Voltage - Supply3.15V~3.45V
Period Jitter, Peak-to-Peak-;-
Phase OffsetNot supported
Features-
Output LevelCMOS
Phase Jitter-
Number of Outputs2
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging1000
Sales UnitPiece

Introduction

AI Translation

The LMX2491 device is a low-noise 6.4GHz wideband Δ-Σ fractional-N PLL with ramp/chirp generation capabilities. It consists of a Phase-Frequency Detector, a programmable charge pump, and a high-frequency input suitable for external VCOs. The LMX2491 widely supports various flexible ramp functions, including FSK, PSK, and configurable segmented linear FM modulation profiles with up to 8 segments. This device features precise PLL resolution and fast ramping capabilities, with a phase detector rate of up to 200MHz. The LMX2491 allows for read-back of any of its registers. The LMX2491 can operate with a single 3.3V power supply. Additionally, the device supports a charge pump with a voltage of up to 5.25V, providing a simple solution with improved phase noise performance without the need for an external amplifier.

Features

AI Translation
  • -227dBc/Hz normalized PLL noise
  • 500MHz to 6.4GHz wideband PLL
  • 3.15V to 5.25V charge pump PLL supply
  • Versatile ramp/ultra-wideband signal generation
  • 200MHz maximum phase detector frequency
  • FSK/PSK modulation pin
  • Digital lock detect 3.3V single supply

Applications

AI Translation
  • FMCW radar
  • Microwave backhaul
  • Test and measurement
  • Wireless infrastructure
  • Sampling clock for high-speed ADC/DAC