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As we know audio has high dynamic range. It means 120dB dynamic range of human ear causes to hear 1 million time samaller that highest undistorted accoustic wave. Then I think for high end audio we...
Question
audio
#2: Post edited
by
mohammadsdtmnd
·
2023-01-15T10:01:32Z (almost 2 years ago)
- As we know audio has high dynamic range. It means 120dB dynamic range of human ear causes to hear 1 million time samaller that highest undistorted accoustic wave. Then I think for high end audio we need just two factor:
- 1. Noise contribution of OpAmp.
2. Distrtion contribution of OpAmp.- 3. Need to satisty the bandwidth of audio mostly these OpAmps are about 10MHz and satisty 20kHz.
- Other parameter like being rail to rail I/O or I/O impedance is pertain to electronic designer.
Am I right?
- As we know audio has high dynamic range. It means 120dB dynamic range of human ear causes to hear 1 million time samaller that highest undistorted accoustic wave. Then I think for high end audio we need just two factor:
- 1. Noise contribution of OpAmp.
- 2. Distrtion contribution of OpAmp. (mostly specified in percentage and dB)
- 3. Need to satisty the bandwidth of audio mostly these OpAmps are about 10MHz and satisty 20kHz.
- Other parameter like being rail to rail I/O or I/O impedance is pertain to electronic designer.
- Am I right? Then what is the specific minimum value of the is there any standard to specify them?
#1: Initial revision
by
mohammadsdtmnd
·
2023-01-15T09:59:42Z (almost 2 years ago)
Audio OpAmp requirements
As we know audio has high dynamic range. It means 120dB dynamic range of human ear causes to hear 1 million time samaller that highest undistorted accoustic wave. Then I think for high end audio we need just two factor: 1. Noise contribution of OpAmp. 2. Distrtion contribution of OpAmp. 3. Need to satisty the bandwidth of audio mostly these OpAmps are about 10MHz and satisty 20kHz. Other parameter like being rail to rail I/O or I/O impedance is pertain to electronic designer. Am I right?