LINEAR TECHNOLOGY CORPORATION
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MILPITAS, CA May 26, 2015 Linear Technology announces the LTC5576, an active double balanced upconversion mixer with very wide RF frequency range, extending from 3GHz to 8GHz. The LTC5576 enhances microwave transmitter and upconversion performance with its exceptional linearity of 25dBm OIP3 and outstanding conversion loss of only 2dB at 8GHz, providing superior output signal quality compared to alternative passive mixers, which typically have 8dB of loss. Additionally the LO input's integrated buffer needs only a 0dBm level drive, effectively eliminating an external amplifier circuit. The LTC5576 employs a unique integrated RF balun transformer
design to extend output frequency bandwidth while enabling singleended operation from 3GHz to 8GHz. Its IF input also has wide bandwidth, and is continuous 50Ω differential matched from 30MHz to over 3GHz. With a proper external balun transformer, the upper range can be extended to over 6GHz.
The LTC5576 employs an active double balanced mixer core with excellent porttoport isolation. For example, at
5.8GHz frequency and 0dBm LO input, the LO leakage at its RF output measures an exceptionally low 35dBm. This low leakage level helps minimize external filtering in order to meet regulatory outofband emission requirements. Even at 8GHz, its LO leakage stands out at 27dBm.
The LTC5576's extended frequency capability addresses a wide range of applications such as shortrange microwave backhauls, 5.8GHz cellular base stations and wireless repeaters. In addition, its dynamic range supports the performance requirements of wireless test equipment, radar receivers and satellite communications.
The LTC5576 is more rugged than other integrated microwave mixers with its improved ESD rating of 2,500V human body model (HBM) on all pins. Housed in a 16lead, 4mm x 4mm QFN package and with its minimal external component design, the LTC5576 produces a compact solution footprint. The device is rated for operation from 40°C to 105°C case temperature to support extended environmental operating temperature. The mixer is optimized for single 5V supply operation, with a nominal supply current of 99mA. Its power consumption can be reduced by powering from a 3.3V supply, with slightly reduced performance. Additionally, the LTC5576 has an enable pin to disable the IC, which when deactivated, draws only 1.3mA typical standby current. This enable pin can be used to turn the device on and off rapidly in less than 0.6µs, supporting timedivision duplex (TDD) or burstmode type
radios. The LTC5576 is priced starting at $7.89 each in 1,000piece quantities. Samples and production quantities are available immediately. For more information, visit, www.linear.com/product/LTC5576.
Operating RF Frequency:
3GHz to 8GHz
IF Frequency Range:
30MHz to 6GHz
Output IP3:
25dBm
Conversion Gain:
0.6dB
Noise Floor:
154dBm/Hz
LO Input Level:
0dBm
LTC5576 Wideband 3GHz to 8GHz Upconversion Mixer Click Photo for HighRes ImageThe USA list pricing shown is for budgetary use only. International prices may differ due to local duties, taxes, fees and exchange rates.
About Linear Technology
Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for over three decades. The Company's products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and
interface ICs, µModule® subsystems, and wireless sensor network products. For more information, visit
www.linear.com.
, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of Linear
Technology Corp. All other trademarks are the property of their respective owners.
John Hamburger
Tel: (408) 4321900 ext. 2419 jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233 ddickinson@linear.com
Fanny Lau
Tel: 85224280303 flau@linear.com
Angela Ao
Tel: (8610)6522 8081 angela.ao@ebacomms.com
Yoshikazu Funasaki Tel: 81352267291 yfunasaki@linear.com
Takashi Matsuda
Tel: +81332558411 linear@chugaiad.co.jp
Desiree Park
Tel: +8225656625 desiree@ezwire.com
Alice Wang
Tel: +886228974705 alice@ezwire.com
Ralf Stegmann
Tel: +49 (0) 7131923411 ralf@ezwire.com
Alan Timmins
Tel: +441252629937 alan@ezwire.com
Simona Labianca
Tel: +39 340 0571697 simona@ezwire.com
Clotilde Zeller
Tel: +33 1 4614 87 09 clotilde@ezwire.com
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