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Audio Precision AUX Series User Manual And Specifications
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Audio Precision AUX Series User Manual And Specifications

Switching amplifier measurement filters
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Summary of Contents for Audio Precision AUX Series

  • Page 3 AUX-0025, AUX-0040 and AUX-0100 Switching Amplifier Measurement Filters User’s Guides and Specifications AUX-0025 February, 2017...
  • Page 4 Audio Precision, AP, and APx are trademarks of Audio Precision, Inc. Windows™ is a trademark of Microsoft Cor- poration. Dolby and the double-D symbol are trademarks of Dolby Laboratories, Inc.
  • Page 5 This booklet contains safety information, user’s guides and full specifications for the Audio Precision AUX-0025, AUX-0040 and AUX-0100 Switching Amplifier Measurement Filters. The AUX series of filters are accessories to any Audio Precision audio analyzer. ap.com Visit the Audio Precision web site at ap.com for APx support information and APx resources.

  • Page 7: Table Of Contents

    Table of Contents Safety ..............iii Introduction .

  • Page 9: Safety

    Do NOT substitute parts or make any modifications with- out the written approval of Audio Precision. Doing so may create safety hazards. Using this product in a manner not specified by Audio Precision can result in a safety hazard.
  • Page 10 Chapter 1: Safety Disclaimer Audio Precision cautions against using their products in a manner not specified by the manufacturer. To do otherwise may void any warranties, damage equipment, or pose a ATTENTION!—This symbol alerts you to important oper- safety risk to personnel.

  • Page 11: Introduction

    Introduction Audio analyzers are generally designed to have broad mea- these amplifier designs vary, as do the names applied to surement bandwidths, broader than a typical audio circuit or them, they have in common an output signal that is a high- system and much wider than the audio passband.
  • Page 12 Some switching amplifiers provide no filtering at their out- signal is ranged. The Audio Precision AUX-0025, AUX- put and depend upon the inductance and mass of the loud- 0040 and AUX-0100 family of switching amplifier mea- speaker to integrate the signal, reproducing the audio but surement filters fulfills this requirement.
  • Page 13 A second oscilloscope capture of the same switching instrument. An AUX-0025/0040/0100 filter may amplifier output shown in Figure 4, be placed directly on top of an Audio Precision after the application of the AUX-0025 filter. analyzer with no degradation in system perfor- The switching carrier has been greatly reduced.
  • Page 14 Chapter : Introduction Use with Audio Precision switchers The characteristics of the Audio Precision SWR-2122 or SWR-2755 series switchers are completely compatible with the AUX-0025/0040/0100. The appropriate balanced or unbalanced switcher can be used to automatically switch the filter / instrument inputs among several DUTs.
  • Page 15 Chapter : Introduction Typical Response Curves AUX-0025 and AUX-0100 +0.10 +0.08 +0.06 +0.04 +0.02 -0.02 -0.04 -0.06 AUX-0025 / AUX-0100 frequency response -0.08 specified at ±0.05 dB 20 Hz to 20 kHz. -0.10 AUX-0025 and AUX-0100 filter passband AUX-0025 / 0040 / 0100 Measurement Filters: Introduction...
  • Page 16 Chapter : Introduction AUX-0025 / AUX-0100 high frequency rejection typically >50 dB, 250 kHz to 20 MHz 100k 200k 500k AUX-0025 and AUX-0100 filter cutoff AUX-0025 / 0040 / 0100 Measurement Filters: Introduction...
  • Page 17 Chapter : Introduction AUX-0040 +0.10 +0.08 +0.06 +0.04 +0.02 -0.02 -0.04 AUX-0040 frequency response specified at ±0.08 dB 20 Hz to 40 kHz. -0.06 -0.08 -0.10 100k AUX-0040 filter passband AUX-0025 / 0040 / 0100 Measurement Filters: Introduction...
  • Page 18 Chapter : Introduction AUX-0040 high frequency rejection typically >52 dB, 400 kHz to 20 MHz 100k 200k 500k AUX-0040 filter cutoff AUX-0025 / 0040 / 0100 Measurement Filters: Introduction...

  • Page 19: User's Guides

    User’s Guides AUX-0025 AUX-0025 / 0040 / 0100 Measurement Filters: User’s Guides...
  • Page 20 Chapter : User’s Guides AUX-0040 AUX-0100 The three filters discussed here are quite similar. The two- The eight-channel AUX-0100 has the same 20 Hz to channel AUX-0025 and AUX-0040 share the same mechan- 20 kHz response as the AUX-0025, but is AC coupled. ical design and connectors, but differ in their bandpass: the For proper performance, the analyzer input impedance that AUX-0025 has a flat response from 20 Hz to 20 kHz with a...
  • Page 21 Chapter : User’s Guides For Audio Precision APx analyzers, use the default analog 1% 250 watt resistors are commonly available in a num- ber of different values, and are a good choice for power balanced setting of 200 k. For legacy Audio Precision instruments, use the HiZ setting.
  • Page 22 Chapter : User’s Guides banana jacks that are found on Audio Precision analyzer ent a load impedance less than 100 k resistive or inputs. Two front-panel common (chassis) connections greater than 360 pF capacitive. (one, in the case of the AUX-0100) are provided. The com-...
  • Page 23 Chapter : User’s Guides Connecting the AUX-0025 or AUX-0040 TO AUX INPUTS AUX-0040 LOAD RESISTORS AUX OUTPUTS OUTPUTS INPUTS OUTPUT APx525 INPUT Diagram representing a switching amplifier whose outputs are connected to both the AUX-0025/AUX-0040 and to load resistors. AUX-0025 / 0040 / 0100 Measurement Filters: User’s Guides...
  • Page 24 Chapter : User’s Guides Connecting the AUX-0100 LOAD RESISTORS TO AUX INPUTS AUX-0100 OUTPUTS CAB-DB1 OUTPUTS OUTPUT INPUTS APx585 DUT INPUT Diagram representing a switching amplifier whose outputs are connected to both the AUX-0100 and to load resistors. AUX-0025 / 0040 / 0100 Measurement Filters: User’s Guides...

  • Page 25: Abbreviations, Terms And Symbols

    Abbreviations, Terms and Symbols used in the following specifications ADC or A/D ..Analog to Digital converter or conversion. BW ....Bandwidth or Measurement Bandwidth, nominally at –3 dB; a single number indicates only the upper limit.
  • Page 26 Abbreviations, Terms and Symbols...

  • Page 27: Specifications

    Specifications AUX-0025 / AUX-0040 / AUX-0100 Switching Amplifier Measurement Filters December 2016 NP0020.00026 r000 Characteristic Specifications Supplemental Information ELECTRICAL Maximum Rated Input AUX-0025, AUX-0100 ±200 Vpk [140 Vrms], dc to 7.5 kHz, decreasing to 75 Vpk [53 Vrms] from 20 kHz to 2 MHz AUX-0040 ±200 Vpk [140 Vrms], dc to 15 kHz, decreasing to 75 Vpk [53 Vrms] from...
  • Page 28 Characteristic Specifications Supplemental Information Distortion THD+N (1 kHz) –110 dB 40 kHz measurement bandwidth DFD (18 kHz+20 kHz) –100 dB per IEC60268 Measured IMD products are at 2 kHz (d2) and 16 kHz + 22 kHz (d3) GENERAL / ENVIRONMENTAL None Power Requirements Temperature Range...

This manual is also suitable for:

Aux-0025Aux-0040Aux-0100