Datasheet Details
- Part number
- SX1781
- Manufacturer
- Semtech
- File Size
- 444.45 KB
- Datasheet
- SX1781-Semtech.pdf
- Description
- PLL Frequency Synthesizer
SX1781 Description
SX1781 PLL Frequency Synthesizer with Integrated VCO ADVANCED COMMUNICATIONS & SENSING FINAL DATASHEET GENERAL .
The SX1781 is a high-performance low phase noise integer-N frequency synthesizer for wireless communications applications.
SX1781 Features
* Frequency range:1200 to 1400 MHz Frequency step: 250 kHz min. Phase noise: -85 dBc/Hz @ 10 kHz offset Reference spurs: -67 dBc Hopping time: 350 µs max. Operating voltage: 3.0 - 3.6V Programmable Output Power: up to +5 dBm Integrated VCO and loop filter SPI-bus interface Lock Detect output and squel
SX1781 Applications
* The circuit embeds a fully integrated PLL (including VCO tank and loop filter), complementary output buffers The divider and power-down settings are programmable via an SPI interface. A Lock Detector pin linked to a squelch function have been designed to ease the software development. PIN DIAGRAM
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