LMX2492-Q1 Series

Automotive grade 500-MHz to 14-GHz wideband, low noise fractional-N PLL with ramp/chirp generation

Catalog

Automotive grade 500-MHz to 14-GHz wideband, low noise fractional-N PLL with ramp/chirp generation

Part	Voltage - Supply [Max]	Voltage - Supply [Min]	Type	Package / Case	Ratio - Input:Output	Mounting Type	Input	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Grade	Number of Circuits	Frequency - Max [Max]	Output	Qualification
Texas Instruments LMX2492QRTWTQ1	3.45 V	3.15 V	Frequency Synthesizer (RF)	24-WFQFN Exposed Pad	2:1	Surface Mount	Clock	24-WQFN (4x4)	125 °C	-40 °C	Automotive	1	14 GHz	Clock	AEC-Q100
Texas Instruments LMX2492RTWR	3.45 V	3.15 V	Frequency Synthesizer (RF)	24-WFQFN Exposed Pad	2:1	Surface Mount	Clock	24-WQFN (4x4)	85 °C	-40 °C		1	14 GHz	Clock
Texas Instruments LMX2492QRTWRQ1	3.45 V	3.15 V	Frequency Synthesizer (RF)	24-WFQFN Exposed Pad	2:1	Surface Mount	Clock	24-WQFN (4x4)	125 °C	-40 °C	Automotive	1	14 GHz	Clock	AEC-Q100
Texas Instruments LMX2492RTWT	3.45 V	3.15 V	Frequency Synthesizer (RF)	24-WFQFN Exposed Pad	2:1	Surface Mount	Clock	24-WQFN (4x4)	85 °C	-40 °C		1	14 GHz	Clock

Catalog

Automotive grade 500-MHz to 14-GHz wideband, low noise fractional-N PLL with ramp/chirp generation

Key Features

• –227 dBc/Hz Normalized PLL Noise500 MHz – 14 GHz Wideband PLL3.15 – 5.25 V Charge Pump PLL SupplyVersatile Ramp / Chirp Generation200 MHz Max Phase Detector FrequencyFSK / PSK Modulation PinDigital Lock DetectSingle 3.3 V Supply CapabilityAutomotive 125°C Q100 Grade 1 QualificationNon-Automotive (LMX2492) Option–227 dBc/Hz Normalized PLL Noise500 MHz – 14 GHz Wideband PLL3.15 – 5.25 V Charge Pump PLL SupplyVersatile Ramp / Chirp Generation200 MHz Max Phase Detector FrequencyFSK / PSK Modulation PinDigital Lock DetectSingle 3.3 V Supply CapabilityAutomotive 125°C Q100 Grade 1 QualificationNon-Automotive (LMX2492) Option

Description

The LMX2492/92-Q1 is a low noise 14 GHz wideband delta-sigma fractional N PLL with ramp and chirp generation. It consists of a phase frequency detector, programmable charge pump, and high frequency input for the external VCO. The LMX2492/92-Q1 supports a broad and flexible class of ramping capabilities, including FSK, PSK, and configurable piecewise linear FM modulation profiles of up to 8 segments. It supports fine PLL resolution and fast ramp with up to a 200 MHz phase detector rate. The LMX2492/92-Q1 allows any of its registers to be read back. The LMX2492/92-Q1 can operate with a single 3.3 V supply. Moreover, supporting up to 5.25 V charge pump can eliminate the need of external amplifier, leading to a simpler solution with improved phase noise performance. The LMX2492/92-Q1 is a low noise 14 GHz wideband delta-sigma fractional N PLL with ramp and chirp generation. It consists of a phase frequency detector, programmable charge pump, and high frequency input for the external VCO. The LMX2492/92-Q1 supports a broad and flexible class of ramping capabilities, including FSK, PSK, and configurable piecewise linear FM modulation profiles of up to 8 segments. It supports fine PLL resolution and fast ramp with up to a 200 MHz phase detector rate. The LMX2492/92-Q1 allows any of its registers to be read back. The LMX2492/92-Q1 can operate with a single 3.3 V supply. Moreover, supporting up to 5.25 V charge pump can eliminate the need of external amplifier, leading to a simpler solution with improved phase noise performance.