Analog-Precision Board

Products by Analog-Precision => Ultimate-Preamplifier by Analog-Precision => Performance and Measurements => Topic started by: Tranquility Bass on March 08, 2021, 12:43:41 PM

Title: DAC Filter Impulse Response
Post by: Tranquility Bass on March 08, 2021, 12:43:41 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:


Conclusion:

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




Title: 2: Slow roll-off, linear phase filter
Post by: Tranquility Bass on March 08, 2021, 12:46:08 PM


Title: 3: Fast roll-off, minimum phase filter
Post by: Tranquility Bass on March 08, 2021, 12:46:36 PM


Title: 4: Slow roll-off, minimum phase filter
Post by: Tranquility Bass on March 08, 2021, 12:47:04 PM



Title: 5: Apodizing, fast roll-off, linear phase filter
Post by: Tranquility Bass on March 08, 2021, 12:47:34 PM




Title: 6: Hybrid, fast roll-off, minimum phase filter
Post by: Tranquility Bass on March 08, 2021, 12:47:53 PM


Title: 7: Brickwall filter
Post by: Tranquility Bass on March 08, 2021, 12:48:11 PM