Hittite Intros GaAs MMIC I/Q Upconverters & Downconverters
-- Ideal for 38 GHz & 42 GHz Microwave Radio Applications
Chelmsford, MA, 06/07/2013 – Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military markets, has launched several new, highly integrated I/Q upconverter and downconverter products which cover the licensed 38 GHz and 42 GHz bands in microwave radios for cellular backhaul radio links.
The HMC6787ALC5A and the HMC6146BLC5A are GaAs MMIC I/Q variable gain upconverters which form a competitive and cost-effective microwave radio transmitter solution which has been designed to meet or exceed all of the performance criteria required for modern high capacity QAM microwave radios. The HMC6787ALC5A operates from 37 to 40 GHz and provides a small signal conversion gain of 10 dB with 17 dBc of sideband rejection, and 13 dB of gain control. The HMC6146BLC5A operates from 40 to 44 GHz and provides a small signal conversion gain of 12 dB with 25 dBc of sideband rejection, and 17 dB of gain control. The HMC6787ALC5A and the HMC6146BLC5A both utilize a RF variable gain amplifier preceded by an I/Q mixer where the LO is driven by a x2 multiplier. IF1 and IF2 mixer inputs are provided and an external 90 degree hybrid is needed to select the required sideband. Both I/Q upconverters feature high output IP3 of +27 dBm, 2LO/RF isolation of 15 dB, and also meet the requirements of VSAT/Satcom transmitter terminals covering the EHF frequency band.
The HMC6147ALC5A is a GaAs MMIC I/Q downconverter which is ideal for replacing the front end receiver section of 38 GHz and 42 GHz microwave radio designs. The HMC6147ALC5A provides a small signal conversion gain of 13 dB with 25 dBc of image rejection and utilizes a low noise amplifier to drive the I/Q mixer where the LO is driven by a x2 multiplier. IF1 and IF2 mixer inputs are provided and an external 90 degree hybrid is needed to select the required sideband. The HMC6147ALC5A I/Q downconverter also features a very low noise figure of less than 3.5 dB and typical input IP3 of 2 dBm.
The I/Q mixer design topology used for the HMC6787ALC5A , HMC6146BLC5A and the HMC6147ALC5A is highly advantageous because it reduces the need for filtering of the unwanted sidebands. All three devices provide a much smaller alternative to hybrid-style single sideband converter assemblies, and they eliminate the need for wire bonding by allowing the use of surface mount manufacturing techniques. The HMC6787ALC5A , HMC6146BLC5A and the HMC6147ALC5A are housed in compact, 5 x 5 mm RoHS compliant SMT packages. Samples and evaluation PC boards for all SMT packaged products are available from stock and can be ordered via the company's e-commerce site or via direct purchase order. Released data sheets are available on-line at www.hittite.com.
Hittite Microwave Corporation is an innovative designer and manufacturer of high performance integrated circuits, or ICs, modules, subsystems and instrumentation for technically demanding digital, RF, microwave and millimeterwave applications covering DC to 110 GHz. The Company offers over 1075 standard products across 36 product lines in addition to a wide range of custom products which apply analog, digital and mixed-signal semiconductor technologies, which are used in a wide variety of wireless / wired communication and sensor applications for Automotive, Broadband, Cellular Infrastructure, Fiber Optics & Networking, Microwave & Millimeterwave Communications, Military, Test & Measurement, and Space markets. The Company is headquartered in Chelmsford, Massachusetts.
Marketing Communications Manager
Hittite Microwave Corporation
2 Elizabeth Dr.
Chelmsford, MA 01824
978-250-3343, ext. 1117