Print Page - DAC Filter Impulse Response

Title: DAC Filter Impulse Response
Post by: Tranquility Bass on March 08, 2021, 11:43:41 PM

Test Methodology:

In this test we excite the DAC with a 1KHz impulse train at -3dBFS and observe the impulse response on a scope for each of the seven different reconstruction filters available in the DAC settings menu.

Test Results:

Fast roll-off, linear phase filter (https://analog-precision.com/forum/performance-and-measurements/dac-filter-step-response-65/msg349/#msg349)
Slow roll-off, linear phase filter (https://analog-precision.com/forum/performance-and-measurements/dac-filter-step-response-65/msg350/#msg350)
Fast roll-off, minimum phase filter (https://analog-precision.com/forum/performance-and-measurements/dac-filter-step-response-65/msg351/#msg351)
Slow roll-off, minimum phase filter (https://analog-precision.com/forum/performance-and-measurements/dac-filter-step-response-65/msg352/#msg352)
Apodizing, fast roll-off, linear phase filter (https://analog-precision.com/forum/performance-and-measurements/dac-filter-step-response-65/msg353/#msg353)
Hybrid, fast roll-off, minimum phase filter (https://analog-precision.com/forum/performance-and-measurements/dac-filter-step-response-65/msg354/#msg354)
Brickwall filter (https://analog-precision.com/forum/performance-and-measurements/dac-filter-step-response-65/msg355/#msg355)

Conclusion:

Title: 1: Fast roll-off, linear phase filter
Post by: Tranquility Bass on March 08, 2021, 11:45:12 PM

Filter-1.png

Title: 2: Slow roll-off, linear phase filter
Post by: Tranquility Bass on March 08, 2021, 11:46:08 PM

Filter-2.png

Title: 3: Fast roll-off, minimum phase filter
Post by: Tranquility Bass on March 08, 2021, 11:46:36 PM

Filter-3.png

Title: 4: Slow roll-off, minimum phase filter
Post by: Tranquility Bass on March 08, 2021, 11:47:04 PM

Filter-4.png

Title: 5: Apodizing, fast roll-off, linear phase filter
Post by: Tranquility Bass on March 08, 2021, 11:47:34 PM

Filter-5.png

Title: 6: Hybrid, fast roll-off, minimum phase filter
Post by: Tranquility Bass on March 08, 2021, 11:47:53 PM

Filter-6.png

Title: 7: Brickwall filter
Post by: Tranquility Bass on March 08, 2021, 11:48:11 PM

Filter-7.png

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Products by Analog-Precision => Ultimate-Preamplifier by Analog-Precision => Performance and Measurements => Topic started by: Tranquility Bass on March 08, 2021, 11:43:41 PM