Commercial audio test tone generator for sale

COMMERCIAL AUDIO TEST TONE GENERATOR FOR SALE FULL

The most critical component is the sine wave generator (single or multitone) and here a software-based direct digital synthesizer (DDS) can provide full flexibility with extremely fine frequency resolution and clock synchronization with the data acquisition system to perform coherent sampling to avoid leakage and FFT window filtering.ДЇigure 1. A typical configuration of a typical bench test setup suited for high resolution wideband ADCs is illustrated on the Figure 1. Similarly, the noise and distortion level of this ac generator should be much better than the specifications of these ADCs, resulting in a noise floor level well below вЂ“140 dBc and distortion lower than вЂ“120 dBc with an input tone frequency of 1 kHz or 2 kHz and up to 20 kHz according to most supplier specifications.

Most of the time, modern high speed SAR and wideband sigma-delta (ОЈ-О”) ADCs exhibiting 24 bits or more feature single-supply and full-differential inputs, and therefore require the signal source used for the DUT to be dc and ac accurate, while providing full differential outputs (180В° out of phase). Usually, expensive laboratory instruments are used to perform these evaluations and characterizations such as the audio analyzer AP27xx or APx5xx series from Audio Precision. The test and verification of ac performance of high precision fast analog-to-digital converters (ADCs) with resolution better than 16 bits require a near perfect sine wave generator capable of covering a 0 kHz to 20 kHz audio bandwidth at least. An Almost Pure DDS Sine Wave Tone Generator

Commercial audio test tone generator for sale