dCS 974 User Manual | Manual for Software Version 1.0x |
dCS Ltd | May 2001 |
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Amplitude (dB)
Amplitude (lsb 24)
Dither Only Spectra, no Signal
dCS 972 SW v1.54
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| Top Hat dither, actual |
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| theoretical |
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| Triangular dither, actual |
| theoretical |
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| Noise Shaped Triangular dither, actual | theoretical |
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| 44.1 kS/s sampling, 16 bit dither, 1024 point FFTs, H6 window |
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0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 |
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Figure 32 – Dither Spectra (FFTs)
Raw Data for Source and Truncated Small Signal
dCS 972 SW v1.54
2048
1024
0 
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| 24 bit source data |
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| 16 bit truncation |
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| 16 bit truncation with Top Hat dither |
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| 16 bit truncation with Triangular dither |
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| 16 bit truncation with Noise Shaped Triangular dither |
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0 | 128 | 256 | 384 | 512 | ||||||
Sample Number
Figure 33 – Small Signal Raw Data with Dithers
Manual part no: DOC1241121A1 | Page 95 | Document No: |
Contact dCS on + 44 1799 531 999 | email to: more@dcsltd.co.uk |
(inside the UK replace + 44 with 0) | web site: www.dcsltd.co.uk |