Scicos Block
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Delta-Sigma modulator block (old block)

Contents

• Delta-Sigma modulator block (old block)
  • Palette
  • Description
  • Dialog box
  • Default properties
  • Interfacing function
  • Computational function
  • See also
  • Authors

Palette

• Old - Old blocks palette

Description

This an old block. Please use SDBLK_c.

Dialog box

• Size of inputs
  Type 'vec' of size 1. If set $>$1, then perform modulation of an input vector.

• Amplitude of input modulator
  Type 'vec' of size 1. Maximal level of the regular input.

• Order of modulator(1,2 or 3)
  Type 'vec' of size 1. Order of MASH modulator. Must be 1,2 or 3.

• Type of output(0:Regular/-1;1:Scaled)
  Type 'vec' of size 1. Scale (center) or not the binary output data stream.

• Enable Quantification error output?(0:No/1:Yes)
  Type 'vec' of size 1. Activate a second regular output corresponding to the quantifictaion error.

• Inherit (no:0, yes:1)
  Type 'vec' of size 1. Herits events by its regular input ports (disable the event input port).

Default properties

• always active: no
• direct-feedthrough: no
• zero-crossing: no
• mode: no
• regular inputs:
  - port 1 : size [1,1] / type 1
  
• regular outputs:
  - port 1 : size [1,1] / type 1
  
• number/sizes of activation inputs: 1
• number/sizes of activation outputs: 0
• continuous-time state: no
• discrete-time state: yes
• object discrete-time state: no
• name of computational function: mash

Interfacing function

• MODNUMCOS/macros/scicos_blocks/Old/MASHBLK_f.sci [view code]

Computational function

• MODNUMCOS/routines/old/mash.c (Type 4) [view code]

See also

• dsm1_c - first order delta-sigma modulator computational routine (Low level routine)
• dsm2_c - second order delta-sigma modulator computational routine (Low level routine)
• dsm3_c

Authors

IRCOM Group Alan Layec