Solutions Search - RF & Wireless

Baseband Design Example for LTC5589/LTC5599 Low-Power IQ Modulator

Bruce Hemp - Applications Section Leader Jul 1st 2016
Introduction This basic low power modulator was described in the LT Journal Nov 2015 article. In this blog post, we will show how to: Use simulation to validate the filter design, and Reduce DC offsets by utilizing Differential Amplifiers for the baseband drive. Also shown are some miscellaneous tips to help complete ...

LTC6945 Wideband Point-to-Point Radio Local Oscillator

Dec 13th 2011
The LTC6945 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, ...

ADC Driver With Single-Ended Input to Differential Output

Dec 14th 2009
The LT6350 is a rail-to-rail input and output low noise single-ended to differential converter/ADC driver featuring fast settling time. It converts a high or low impedance, single-ended input signal to a low impedance, balanced, differential output suitable for driving high performance differential succesive approximation register ...

LTC6946-2 Driving a Passive Downconverting Mixer

Oct 27th 2009
The LTC6946 is a high performance, low noise, 5.7GHz phase-locked loop (PLL) with a fully integrated VCO, including a reference divider, phase-frequency detector (PFD) with phase-lock indicator, ultralow noise charge pump, integer feedback divider, and VCO output divider. The charge pump contains selectable high and low voltage ...

LTC6406: 133MHz Differential Amplifier with External Gain Set, Impedance Matching to a 75Ω Source and Level Shifting

Aug 3rd 2007
This circuit shows an example of a single-ended-to-differential amplifi er matching a 75Ω source and level shifting from a 2.5V input common mode to a 1.25V output common mode voltage (typical level shifting required from a 5V single-ended circuit to a 3V differential circuit to drive a high speed ADC). The singleended- ...

The LT1993-2 Driving an LTC2255 ADC Sampling at 96.12Msps with a 70MHz, 4-Channel WCDMA Signal

Mar 29th 2005
70MHz IF signal driver into ADC. Four to one transformer on input with capacitive coupling into input of LT1993-2, LC filter on output provides Out of Band Filtering. ...

High Linearity Components Simplify Direct Conversion Receiver Designs

Jan 20th 2005
LT5575 Demodulator with 20MHz Low pass Filter, common mode output voltage can be set regardless of input voltage. A filter at the output of the demodulator filters out of band signal and the filter at the inputs of the ADC performs the anti aliasing function. ...