HMC908A
Info : RECOMMENDED FOR NEW DESIGNS
searchIcon
cartIcon

HMC908A

9 GHz to 12 GHz, GaAs, MMIC, I/Q Downconverter

 

Show More showmore-icon

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 3
1ku List Price
price unavailable
Features
  • Conversion gain: 11 dB (typical) at IFOUT = 100 MHz
  • Image rejection: 25 dB (typical) at IFOUT = 100 MHz
  • LO to RF isolation: 46 dB (typical)
  • LO to IF isolation: 26 dB (typical)
  • IF output frequency: dc to 3.5 GHz
  • 32-lead, 4.9 mm × 4.9 mm ceramic leadless chip carrier
Additional Details
show more Icon

The HMC908A is a compact, gallium arsenide (GaAs), monolithic microwave integrated circuit (MMIC), inphase/quadrature (I/Q) downconverter in a leadless, RoHS compliant ceramic leadless chip carrier. This device provides a small signal conversion gain of 11 dB with a noise figure of 2 dB and 25 dB of image rejection at 100 MHz. The HMC908A utilizes a low noise amplifier (LNA) followed by an image rejection mixer that is driven by a local oscillator (LO) buffer amplifier. The image rejection mixer eliminates the need for a filter following the LNA, and removes thermal noise at the image frequency. I and Q mixer outputs are provided and an external 90° hybrid is needed to select the required sideband. The HMC908A is a much smaller alternative to hybrid style image rejection mixer downconverter assemblies, and it eliminates the need for wire bonding by allowing the use of surface-mount manufacturing techniques.

Applications

  • Point to point radios
  • Point to multipoint radios and very small aperture terminals (VSATs)
  • Test equipment and sensors
  • Military end use
Part Models 3
1ku List Price
price unavailable

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
HMC908ALC5
  • HTML
  • HTML
HMC908ALC5TR
  • HTML
  • HTML
HMC908ALC5TR-R5
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

EV1HMC908ALC5

HMC908A Evaluation Board

zoom

EV1HMC908ALC5

HMC908A Evaluation Board

HMC908A Evaluation Board

Product Detail

All RF traces are routed on Layer 1 (primary side), and all other remaining layers are ground planes that provide a solid ground for RF transmission lines. The top dielectric material is Rogers 4350, offering low loss performance. The prepreg material in the middle sticks core layers together, which includes an Isola 370HR layer with copper traces above and below. Both the prepreg material and the Isola 370HR core layer are used to achieve required board finish thickness.

The circuit board used in the application uses radio frequency (RF) circuit design techniques. Signal lines must have 50 Ω impedance while the package ground leads and exposed paddle must be connected directly to the ground plane. Use a sufficient number of via holes to connect the top and bottom ground planes. The EV1HMC908ALC5 evaluation board is available from Analog Devices, Inc. upon request.

Resources

Tools & Simulations

Tools & Simulations 1

Recently Viewed