| Part Number | LMX2581 |
| Manufacturer | Texas Instruments |
| Title | Wideband Frequency Synthesizer |
| Description | The LMX2581 is a low noise wideband frequency synthesizer that integrates a delta-sigma fractional N PLL, multiple core VCO, programmable output d... |
| Features |
•1 Output Frequency from 50 to 3760 MHz • Input Clock Frequency up to 900 MHz • Phase Detector Frequency up to 200 MHz • Supports Fractional and Integer Modes • –229 dBc/Hz Normalized PLL Phase Noise • –120.8 dBc/Hz Normalized PLL 1/f Noise • –137 dBc/Hz VCO Phase Noise @ 1 MHz offset for a 2.5 GHz ... |
| File Size | 1.42MB |
| Datasheet |
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LMX2581E : The LMX2581E 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 3800 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.
LMX2582 : The LMX2582 device is a low-noise, wideband RF PLL with integrated VCO that supports a frequency range from 20 MHz to 5.5 GHz. The device supports both fractional-N and integer-N modes, with a 32-bit fractional divider allowing fine frequency selection. Integrated noise of 47 fs for 1.8-GHz output makes it an ideal low-noise source. Combining best-in-class PLL and integrated VCO noise with integrated LDOs, this device removes the need for multiple discrete devices in high performance systems. The device accepts input frequencies up to 1.4 GHz, which combined with frequency dividers and programmable low noise multiplier allows flexible frequency planning. The additional programmable low-noise.