Key facts
- Brand
- Linear Technology
- Model
- LTC6946
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-05
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Linear Technology LTC6946 Integer-N Synthesizer Datasheet
The LTC6946 is a single-chip solution that integrates a frequency synthesizer and a voltage-controlled oscillator (VCO) to conserve space and cost in RF receiver or transmitter systems. It combines an ultralow phase noise integer-N synthesizer with a low phase noise, broadband VCO within a 4mm x 5mm package.
The document details the importance of low phase noise for maintaining signal-to-noise ratio (SNR) in digitally modulated signals and avoiding reciprocal mixing effects from adjacent channels. It provides specific frequency range versions for different applications.
Linear Technology LTC6946 specifications
| VCO Input Range (LTC6945) | 350MHz to 6GHz |
|---|---|
| Normalized In-Band Phase Noise Floor | -226dBc/Hz |
| Wideband Output Phase Noise Floor | -157dBe/Hz |
| Normalized In-Band 1/f Noise | -274dBe/Hz |
| Spurious Levels | < —100dBe |
| Output Charge Pump Current | Up to 11mA |
| Package Type | 28-Pin (4mm x 5mm) QFN Packages |
All Linear Technology LTC6946 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the main benefit of integrating a synthesizer and VCO?
It conserves space and cost in RF systems without sacrificing signal quality.
From: Linear Technology LTC6946 Integer-N Synthesizer Datasheet
Does the LTC6946 require external components for the VCO?
No, the integrated VCOs achieve low phase performance and require no external components.
From: Linear Technology LTC6946 Integer-N Synthesizer Datasheet
What is the frequency range of the LTC6945?
The LTC6945 supports a VCO input range from 350MHz to 6GHz.
What is the lowest normalized in-band phase noise floor?
The device features a low normalized in-band phase noise floor of -226dBc/Hz.