dCS 954 User Manual | Manual for Standard Software Version 1.5x |
dCS Ltd | June 2000 |
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Group Delay
The group delay for a different sample rates. to 1.5x):
dCS 904 and dCS 954 ADC and DAC were measured, at The results were as below (they are valid for software up
| Filter 1 | Filter 2 | Filter 3 | Filter 4 |
| 32kS/s | 1378 | 1378 | 1378 | 1378 |
| 44.1kS/s | 1335 | 1335 | 1335 | 1335 |
| 48kS/s | 1258 | 1258 | 1258 | 1258 |
| 88.2kS/s | 651 | 651 | 651 | 651 |
| 96kS/s | 530 | 530 | 530 | 530 |
| 176.4kS/s | 253 | 253 | 253 | 253 |
| 192kS/s | 226 | 226 | 226 | 226 |
DSD | 4 | 4 | 4 | 4 |
Table 9 – dCS 904 ADC Group Delay in microsecs, v1.31 software | ||||
| Filter 1 | Filter 2 | Filter 3 | Filter 4 |
32kS/s | 1692 | 1710 | 1692 | 1700 |
44.1kS/s | 1265 | 1262 | 1251 | 1245 |
48kS/s | 1132 | 1136 | 1142 | 1150 |
88.2kS/s | 517 | 238 | 267 | 191 |
96kS/s | 414 | 210 | 224 | 168 |
176.4kS/s | 129 | 129 | 129 | 129 |
192kS/s | 119 | 119 | 119 | 119 |
DSD | 23 | 23 | 23 | 23 |
Table 10 – dCS 954 DAC group delay in microsecs, v1.30 software
The delays were measured analogue in to analogue out for a back to back pair. They are the same with
Manual part no: DOC136954 iss 2B1 | Page 48 | file 135954ma2b1.pdf available from website |
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