| Linduino 1.3.0 Linear Technology Arduino-Compatible Demonstration Board

Files
LTC6945: Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer
RF, Silicon Oscillators, PLL Synthesizers, and VCOs

LTC6945: Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer. More...

## Files
file | LTC6945.cpp
| Library for LTC6945: Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer.
file | LTC6945.h
| LTC6945: Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer.
file | DC1649A.ino
| DC1649A LTC6945: Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer.

## Detailed Description

LTC6945: Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer.

    The LTC®6945 is a high performance, low noise, 6GHz phase-locked
    loop (PLL), including a reference divider, phase-frequency
    detector (PFD) with phase-lock indicator, charge
    pump, integer feedback divider and VCO output divider.

    The part features a buffered, programmable VCO output
    divider with a range of 1 through 6. The differential, low
    noise output buffer has user-programmable output power
    ranging from –6dBm to 3dBm, and may be muted through
    either a digital input pin or software.

    The low noise reference buffer outputs a typical 0dBm
    square wave directly into a 50Ω impedance from 10MHz
    to 250MHz, or may be disabled through software.

    The ultralow noise charge pump contains selectable high
    and low voltage clamps useful for VCO monitoring, and
    also may be set to provide a V+/2 bias.

    All device settings are controlled through a SPI-compatible
    serial port.

http://www.linear.com/product/LTC6945

http://www.linear.com/product/LTC6945#demoboards

Copyright 2018(c) Analog Devices, Inc.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
- The use of this software may or may not infringe the patent rights of one or more patent holders. This license does not release you from the requirement that you obtain separate licenses from these patent holders to use this software.
- Use of the software either in source or binary form, must be run on or directly connected to an Analog Devices Inc. component.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.