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Details for LMX2581EVM by Texas Instruments
Education Maker & Hobbyist Electronics > Development Boards & Evaluation Kits > RF / Wireless Development Kits
EVALUATION BOARD FREQUENCY SYNTHESIZER
LMX2581EVM image

LMX2581EVM by Texas Instruments

EVALUATION BOARD FREQUENCY SYNTHESIZER
Features
100 fs RMS Jitter in Integer Mode
3-Wire Serial Interface and Readback
Digital Lock Detect
Input Clock Frequency up to 900 MHz
Output Frequency from 50 to 3760 MHz
Phase Detector Frequency up to 200 MHz
Programmable 32 Level Charge Pump Current
Programmable Fractional Denominator
Programmable Fractional Modulator Order
Programmable Option to Use an External VCO
Programmable Output Power up to +12 dBm
Single Supply Voltage from 3.15 V to 3.45 V
Supports Fractional and Integer Modes
Supports Logic Levels down to 1.6 V
u2013120.8 dBc/Hz Normalized PLL 1/f Noise
u2013137 dBc/Hz VCO Phase Noise @ 1 MHz offset for a 2.5 GHz Carrier
u2013229 dBc/Hz Normalized PLL Phase Noise
Part Information
LMX2581EVM image
Description
The LMX2581 is a low noise wideband frequency synthesizer that integrates a delta-sigma fractional N PLL, multiple core VCO, programmable output divider, and two differential output buffers. The VCO frequency range is from 1880 to 3760 MHz and can be sent directly to the output buffers or divided down by even values from 2 to 38. Each buffer is capable of output power from -3 to +12 dBm at 2700 MHz. Integrated low noise LDOs are used for superior noise immunity and consistent performance. This synthesizer is a highly programmable device and it enables the user to optimize its performance. In fractional mode, the denominator and the modulator order are programmable and can be configured with dithering as well. The user also has the ability to directly specify a VCO core or entirely bypass the internal VCO. Finally, many convenient features are included such as power down, Fastlock, auto mute, and lock detection. All registers can be programmed through a simple 3 wire interface and a read back feature is also available. The LMX2581 operates on a single 3.3 V supply and comes in a 32 pin 5.0 mm × 5.0 mm WQFN package.
Specifications
Silicon Manufacturer:
Texas Instruments
Silicon Core Number:
LMX2581
Kit Application Type:
RF / IF
Application Sub Type:
Frequency Synthesizer
Kit Contents:
Eval Board LMX2581
Product Range:
-
SVHC:
No SVHC (27-Jun-2018)
Features:
Wideband Freq Synthesizer 1.85-3.76GHz VCO 20MHz Phase Detector Freq Charge Pump USB 3.3V I/P
Alternate Descriptions
EVALUATION BOARD, FREQUENCY SYNTHESIZER; Silicon Manufacturer:Texas Instruments; Silicon Core Number:LMX2581; Kit Application Type:RF / IF; Application Sub Type:Frequency Synthesizer; Kit Contents:Eval Board LMX2581; Product Range:- RoHS Compliant: Yes Newark Electronics
Evaluation Module For Wideband Frequency Synthesizer Avnet America
Evaluation Module For Wideband Frequency Synthesizer Avnet Europe