Sigma-Delta Modulator for Radio Frequency Applications

The Intrinsix Sigma-Delta Modulators for Radio Frequency Applications (SD-M-RF) are part of the larger offering of Sigma-Delta IP available from Intrinsix.

Intrinsix SD-M-RF allows you to add "RF on CMOS" in a highly integrated fashion resulting in a significantly lower cost in materials for your product.  By incorporating SD-M-RF in your custom Baseband IC you eliminate the need for a separate off-the-shelf RF chip as well as other OTS devices, such as SAW filters, as a result of the benefits derived from a SD-M-RF architecture.

The family of SD-M-RF is generated utilizing proprietary, patent-pending techniques within the Intrinsix SDM Refinery toolset, which automates the design process.  An Intrinsix engineer specifies an Over-Sampling Ratio (OSR), quantization levels, order of complexity and IF frequency and SDM Refinery creates the desired modulator.  The Intrinsix SDM Refinery also helps develop high efficiency, high order polyphase half-band digital channel filters to ease some of the system level performance requirements.  More information on the SDM Refinery(TM) can be found at SDM Refinery

Silicon proven architectures can be incorporated in a variety of CMOS-based silicon technologies such as:

• Available in 10 to 16 bit resolutions

• High bit depth reduces or eliminates the need for AGC align="right" border="0" height="127" hspace="6" vspace="6" width= "85">

• 3rd to 6th Order  SD Modulation Complexity

• Able to achieve a Signal-to-Noise Ratio (SNR) between 60-96 db

• "Software Radio" friendly

• Utilizes Complex Quadrature SDM Converter Technology

• Digital Channel Select Filtering and Image Rejection

• Single Channel or Block Down Converters

• Compact design resulting in small die area

• Incorporates a Low Power/Continuous Time Sigma-Delta Modulator resulting in very low in power consumption and has a customizable Low Power Mode

• "Tunable" for each application

• Available as RTL and GDSII as well as RTL and Behavioral System models in industry standard formats such as Verilog-A or Simulink