% Delta-Sigma Toolbox% Version 7.0 01-Oct-2004% R. Schreier, Analog Devices Inc.%% Consult the DSToolbox.pdf file for more complete documentation.%%% Modulator synthesis and simulation%   synthesizeNTF - Noise transfer function (NTF) synthesis.%   clans         - Closed-loop analysis of noise shapers %		    (NTF synthesis for multi-bit modulators).%   simulateDSM   - Simulate a delta-sigma modulator using either %		    its NTF or its state-space description.%   simulateSNR   - Use simulateDSM to simulate a DSM with sine wave inputs %		    of varying amplitudes and then determine the SNR for each.%   predictSNR    - SNR predicttion for binary modulators %		    (Ardalan & Paulos method)%% Modulator realization%   realizeNTF	  - Compute coefficients for a particular modulator topology.%   stuffABCD	  - Create the state-space description of a modulator given%                   the coefficients for a particular topology.%   scaleABCD     - Perform dynamic-range scaling.%   mapABCD       - Convert a state-space description back to coefficients.%% Other functions related to delta-sigma %   simulateESL   - Simulate the element selection logic in a mismatch-shaping%                   DAC.%   designHBF     - Design multiplierless half-band filters which use the %                 - the Saramaki recursive filter structure.%   findPIS       - Compute a positively-invariant set for a DSM. (The %                   PosInvSet sub-directory will need to be added to your PATH)%   infnorm       - Calculate the infinity norm (maximum gain) of a TF.%% Demonstrations and Examples%   dsdemo1       - Synthesize a 5th-order lowpass and an 8th-order bandpass NTF.%   dsdemo2       - Time-domain simulation and SNR calculation.%   dsdemo3       - Modulator realization and dynamic range scaling.%   dsdemo4       - Audio demonstration of MOD1 and MOD2%   dsdemo5	  - Simulate the element selection logic of a mismatch-shaping DAC.%   dsdemo6	  - Design a hardware-efficient halfband filter.%   dsdemo7	  - Find positively-invariant sets for second-order (and third-order) modulators.%   dsdemo8       - Continuous-time bandpass modulator design using LC tanks.%   dsexample1	  - Discrete-time lowpass modulator.%   dsexample2	  - Discrete-time bandpass modulator.%   dsexample3	  - Continuous-time bandpass modulator, including ADICE .ckt and .use files. %		    (ADI internal use only.)%       Copyright (c) 1993-2004 R. Schreier