Service Hotline: 13823761625

Support

Contact Us

You are here:Home >> Support >> Technology

Technology

Design considerations for volume control in audio amplifier ICs

Time:2023-06-23 Views:897
Design considerations for volume control in audio amplifiers
Power supply voltage: signal swing
    The typical swing of DAC (digital to analog converter) output is about VPP
    The swing of the broadcast signal can easily reach 2 VPP or even higher.
    When choosing analog volume control for digital control, it is crucial to have a certain understanding of the amplitude of the signal (which will be attenuated).
    For controlling DAC output, ± V devices will be fully capable - the upper limit provided is 10 VPP, as the maximum value of the signal will not exceed VPP
Maintain dynamic range
    In many applications, multiplying the digital value of a DAC by a coefficient less than 1 is an acceptable volume control method, which can use fewer bits to represent the signal without increasing the noise level.
    Combining fewer bits to represent a signal with a fixed noise level will greatly reduce the dynamic range of volume changes.
    By digital control and changing the volume in the analog domain, the inherent noise of the DAC will be suppressed along with the audio signal.
Our company with a volume control power amplifier IC information, please refer to: http://www.chipsourcetek.com/enindex.htm
Our company volume control IC information, please refer to: http://www.chipsourcetek.com/enindex.htm
 












   
      
      
   
   


    Disclaimer: This article is transferred from other platforms and does not represent the views and positions of this site. If there is any infringement or objection, please contact us to delete it. thank you!
    矽源特科技ChipSourceTek