High linearity downconverting mixer covers 4-6-GHz RF frequency range
March 29, 2012 // Paul Buckley
Linear Technology has released a 4 GHz to 6 GHz high dynamic range downconverting mixer. The LTC5544 mixer offers high linearity with 25.9 dBm IIP3 (Input Third-Order Intercept), high conversion gain of 7.4 dB owing to its integrated IF amplifier, and a noise figure of 11.3 dB.
The performance characteristics enable excellent dynamic range performance for both main receivers and digital pre-distortion receivers. Moreover, the LTC5544’s RF input can withstand strong interference signals without significantly degrading its noise figure, thus preserving receiver sensitivity and enhancing robustness. The LTC5544 operates on a single 3.3 V supply without compromising performance, while keeping power consumption to a minimum.
The LTC5544’s 6 GHz reach is ideally suited for wireless systems such as point-to-point broadband microwave links, 5 GHz license-free band WiMAX radios, satellite receivers, radar systems, avionics, public safety radios and RF test systems.
The LTC5544 incorporates an on-chip integrated high gain IF amplifier capable of supporting IF frequencies up to 1GHz. Also integrated are an LO buffer along with two RF balun transformers. They enable the RF and LO inputs to operate single-ended and with 50 Ω matching. The LO input requires only +2 dBm drive level. These features simplify design and require fewer external components, resulting in a smaller solution size.
The LTC5544 operates on a single 3.3 V supply, drawing 194 mA of current. The LTC5544 has a power-down feature with 0.6 µs turn-on and turn-off time, supporting Burst Mode operation or TDD (time division duplexed) systems. When disabled, the device consumes a maximum of 500 µA. The LTC5544 is offered in a 16-lead, 4 mm x 4 mm plastic QFN package and is available immediately from stock. Pricing starts at $8.50 each in 1,000 piece quantities.
More information about www.linear.com/product/LTC5544
Endoscopic measurement method allows quieter, more reliable jet engines
December 21, 2014
A team of scientists from German aerospace research centre DLR has developed an optical measurement method that enables direct ...
Pathway to converting sunlight to electricity is indentified
How industrial IoT will drive the MEMS market indirectly
Successful with phones & drones, Parrot ponders farming
Qimonda's late legacy: 28nm FeRAM
Volvo airs cloud-based cyclist protection system
December 19, 2014
The facts are disturbing: 50 percent of all cyclists killed in Europe's traffic have collided with a car. In Germany, the ...
Sony transforms eyewear into smart augmented reality devices
Harman grabs hidden infotainment gem S1nn
Alps Electric puts cash into Qualtre
- New life for Embedded systems in the Internet of Things
- Virtualization and the Internet of Things
- RF/Microwave Instrumentation “S” Series Amplifiers
- Application Guide to RF Coaxial Connectors and Cables
InterviewCEO interview: Bosch's IoT startup is all about the system
Thorsten Mueller, CEO of Bosch Connected Devices and Solutions GmbH (Reutlingen, Germany), has been guiding the latest startup subsidiary of Robert Bosch GmbH since 2013 when he started the initiative ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Arrow Electronics is giving away ten BeMicro Max 10 FPGA evaluation boards together with an integrated USB-Blaster, each package being worth 90 Euros, for EETimes Europe's readers to win.
Designed to get you started with using an FPGA, the BeMicro Max 10 adopts Altera's non-volatile MAX 10 FPGA built on 55-nm flash process.
The MAX 10 FPGAs are claimed to revolutionize...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.