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LTC5577

Part Number	LTC5577
Manufacturer	Linear
Description	300MHz to 6GHz High Signal Level Active Downconverting Mixer
Published	Mar 26, 2016
Detailed Description	Features n +30dBm IIP3 n +15dBm Input P1dB n 0dB Conversion Gain n Wideband Differential IF Output n Very Low 2 × 2 a...
Datasheet	LTC5577 PDF File

Overview

Features n +30dBm IIP3 n +15dBm Input P1dB n 0dB Conversion Gain n Wideband Differential IF Output n Very Low 2 × 2 and 3 × 3 Spurs n IF Frequency Range Up to 1.
5GHz n Low LO-RF Leakage n LO Input 50Ω Matched when Shutdown n –40°C to 105°C Operation (TC) n Very Small Solution Size n 16-Lead (4mm × 4mm) QFN package Applications n Wireless Infrastructure Receivers n DPD Observation Receivers n CATV Infrastructure LTC5577 300MHz to 6GHz High Signal Level Active Downconverting Mixer Description The LTC®5577 active mixer is optimized for RF downconverting applications that require high input signal handling capability and wide bandwidth.
The wideband IF output uses external resistors to set the output impedance, allowing the flexibility to match directly into differential IF loads, such as filters and amplifiers.
The part is characterized and specified with a 100Ω differential output impedance, although it can be used with output impedances ranging from 50Ω to 400Ω, with higher gain and reduced IIP3 and P1dB at the higher impedance levels.
The IF output is usable up to 1.
5GHz.
In receiver applications, the high input P1dB and IIP3 allow the use of higher gain low noise amplifiers, resulting in higher receiver sensitivity.
Integrated transformers on the RF and LO inputs provide single-ended 50Ω interfaces, while minimizing the solution size.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Typical Application Wideband Downconverting Mixer with 1GHz IF Bandwidth and +15dBm Input P1dB into 100Ω Load 100Ω IF LOAD 50Ω 50Ω 1nF 560nH 115Ω 560nH 115Ω 1nF 8.
2pF RF 0.
7pF LTC5577 IF+ RF EN EN BIAS VCC 1nF IF – LO 3.
9pF 1nF LO IADJ 5577 TA01a 3.
3V 180mA IIP3 (dBm) Voltage Conversion Gain and IIP3 vs IF Output Frequency 33 IIP3 30 9 8 27 RF = 1.
6GHz TO 2.
6GHz 24 LO = 1.
59GHz/0dBm ZRF = 50Ω 21 ZIF = 100Ω DIFFERENTIAL TC...

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