This version (18 May 2021 09:02) was approved by John Joseph.The Previously approved version (02 Mar 2020 07:17) is available.
Table of Contents
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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
| Name | Type | Description |
|---|---|---|
| —————————— | ———————————————————— | —————————— |
| ControlInput | Control | Controls the signal level of output |
| Input X | Audio | Input channel X |
Output
| Name | Type | Description |
|---|---|---|
| —————————— | ———————————————————— | —————————— |
| Output X | Audio | Output channel X |
Note:
- X - Channel Index
Configurable Parameters
| GUI Parameter Name | Default Value | Range | Function Description |
|---|---|---|---|
| —————————— | ————————- | ————————————-- | ———————————————————- |
| SlewRate(StepSize) | 12 | 1 to 23 | Controls the transition time of signal from one level to another level |
| SlewType | RC | RC,DB(only in Block & HW Slew) | Allows to select the slew type for algorithm. Change in slewType requires re-compilation |
| SlewType1 | Linear Slew | NA | Slew type. Applicable to HW slew modules |
| SlewType2 | Linear Slew | NA | Slew type. Applicable to HW slew modules |
| Index1 | 8 | 0 to 15 | Slew rate which scales the Slew value |
| Index2 | 8 | 0 to 15 | Slew rate which scales the Slew value |
| NumChannels | 1 | 20 | Num of input and output channels .Change in this value requires re-compilation |
DSP Parameters
| Parameter Name | Description | ADSP-214xx/SC5xx/215xx | |
|---|---|---|---|
| —————————————- | ——————————————————————————-- | —————————————- | —————————- |
| SlewRate | Controls the transtion time of signal from one level to another level | Float | NA |
| slew_mode | Controls 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