Wiki

This version (18 May 2021 09:02) was approved by John Joseph.The Previously approved version (02 Mar 2020 07:17) is available.Diff

Click here to return to the Gain page

Single Slew External Volume


Description

The Single Slew Ext Vol block controls level of the signal through external pin. Such capability would be appropriate for an application like external control communication to ab 8-10 bit ADC.

Usage

This block has text filed to specify the slew rate for smooth transition from one level of the signal to another level.slew rate is configurable from 1 to 23. Signal transition from one level to another level is faster when slew rate value is low and Signal transition from one level to another level is slower when slew rate value is high.

Targets Supported

Name ADSP-214xx ADSP-215xx/SC5xx ADAU145x/146x
———————————————————— ——————-- ——————————-- —————————-
Single Slew Ext Vol B/S B/S S


Pins

Input

NameTypeDescription
————————————————————————————————————————
ControlInputControlControls the signal level of output
Input XAudioInput channel X

Output

NameTypeDescription
————————————————————————————————————————
Output XAudio Output channel X

Note:

  • X - Channel Index


Configurable Parameters

GUI Parameter NameDefault ValueRangeFunction Description
——————————————————-————————————--———————————————————-
SlewRate(StepSize)121 to 23Controls the transition time of signal from one level to another level
SlewTypeRCRC,DB(only in Block & HW Slew)Allows to select the slew type for algorithm. Change in slewType requires re-compilation
SlewType1Linear Slew NA Slew type. Applicable to HW slew modules
SlewType2Linear Slew NA Slew type. Applicable to HW slew modules
Index180 to 15Slew rate which scales the Slew value
Index280 to 15Slew rate which scales the Slew value
NumChannels120Num of input and output channels .Change in this value requires re-compilation


DSP Parameters

Parameter NameDescriptionADSP-214xx/SC5xx/215xx
—————————————- ——————————————————————————-- —————————————- —————————-
SlewRateControls the transtion time of signal from one level to another level Float NA
slew_modeControls the transtion time of signal from one level to another level NA Integer32


DSP Parameter Computation

SlewRate = 2^(-1*StepSize)

resources/tools-software/sigmastudiov2/modules/gain/singleslewextvol.txt · Last modified: 06 May 2021 18:24 by Nikhin Shetty