Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: RE:Wiki answer posted by Mr_Steady on September 10, 2015 at 16:50:26:
Two reasons why discrete will have problems:
1. components not matched to sufficient tolerance
2. components drift from previously matched settings.
Temperature changes will cause drift, so it there is uneven heating of components there will be problems. Temperature differences can be minimized by putting all of the resistors on a single substrate, but then this won't be a discrete approach.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups Full ThreadTopic - Discreet R2R Ladder Dacs - Mr_Steady 07:20:35 09/7/15 (104)
- Two Russian entries - Srajan Ebaen 11:57:57 09/21/15 (2)
- RE: Two Russian entries - jusbe 16:35:10 09/26/15 (0)
- RE: Two Russian entries - Mr_Steady 19:43:34 09/21/15 (0)
- DISCRETE, damnit. - Dave Pogue 05:24:10 09/14/15 (8)
- RE: DISCRETE, damnit. - AbeCollins 16:03:16 09/16/15 (6)
- You have to yell louder. (NT) - Kal Rubinson 17:46:11 09/16/15 (5)
- RE: You have to yell louder. (NT) - Mr_Steady 20:55:56 09/16/15 (4)
- Loud, but wrong. - Dave Pogue 05:12:24 09/17/15 (1)
- RE: Loud, but wrong. - Mr_Steady 07:00:18 09/17/15 (0)
- RE: You have to yell louder. (NT) - AbeCollins 21:20:26 09/16/15 (1)
- RE: You have to yell louder. (NT) - Mr_Steady 07:23:20 09/17/15 (0)
- Thanks. (NT) - Kal Rubinson 08:41:12 09/14/15 (0)
- I have 4 of the Soekris r2r dacs.... - kuribo 16:23:30 09/11/15 (2)
- RE: I have 4 of the Soekris r2r dacs.... - Mr_Steady 11:59:48 09/12/15 (1)
- Haven't put them together yet as I am waiting for the firmware, filters, and daisychaining to be documented - kuribo 15:58:15 09/13/15 (0)
- Mdht Havana etc - Dynobot 17:33:10 09/9/15 (4)
- RE: Mdht Havana etc - Mr_Steady 18:21:30 09/9/15 (3)
- RE: Mdht Havana etc - Dynobot 03:44:44 09/10/15 (2)
- Using the internal op amp to get voltage out isn't always the best solution - slider 20:18:14 09/10/15 (1)
- RE: Using the internal op amp to get voltage out isn't always the best solution - Dynobot 04:23:40 09/11/15 (0)
- Soekris discreet R2R DAC - knewton 12:43:06 09/7/15 (17)
- RE: Soekris discreet R2R DAC - FlyCast 13:43:34 09/26/15 (0)
- I am using one - rickmcinnis@dogwoodfabrics.com 13:44:51 09/9/15 (3)
- RE: Getting rid of dancing cats - beautox 14:23:54 09/9/15 (2)
- Works perfectly with AdBlock Plus in Firefox as well.... - Ivan303 14:53:12 09/9/15 (1)
- RE: Works perfectly with AdBlock Plus in Firefox as well.... - beautox 16:09:12 09/9/15 (0)
- Are there any kits... - jusbe 23:38:42 09/8/15 (4)
- RE: Are there any kits... - morricab 13:36:57 09/10/15 (3)
- Please report back - jusbe 13:49:16 09/10/15 (2)
- RE: Please report back - morricab 01:09:06 09/11/15 (1)
- This R-2R revival seems to be kicking off. - jusbe 16:37:58 09/26/15 (0)
- RE: Soekris discreet R2R DAC - Mr_Steady 16:11:43 09/8/15 (2)
- RE: Soekris discreet R2R DAC - knewton 08:15:13 09/12/15 (1)
- RE: Soekris discreet R2R DAC - Mr_Steady 12:05:14 09/12/15 (0)
- RE: Soekris discreet R2R DAC - lokie 05:09:51 09/8/15 (1)
- RE: Soekris discreet R2R DAC - Mr_Steady 17:33:49 09/10/15 (0)
- RE: Soekris discreet R2R DAC - Mr_Steady 15:42:40 09/7/15 (0)
- RE: Soekris discreet R2R DAC - knewton 15:38:10 09/7/15 (0)
- MSB has been producing one for quite awhile now ... - slider 08:41:04 09/7/15 (36)
- RE: MSB has been producing one for quite awhile now ... - Mr_Steady 09:00:26 09/7/15 (35)
- RE: MSB has been producing one for quite awhile now ... - slider 09:29:48 09/7/15 (34)
- RE: MSB has been producing one for quite awhile now ... - FlyCast 15:40:28 09/26/15 (0)
- Good grief. I find that deeply cool. - jusbe 23:31:02 09/8/15 (0)
- RE: MSB has been producing one for quite awhile now ... - Mr_Steady 09:39:09 09/7/15 (31)
- No, haven't heard one - slider 20:41:18 09/10/15 (0)
- Wonder what the tolerances of the resistors are, or more importantly, what they need to be? - Ivan303 08:37:07 09/9/15 (29)
- I wonder what the temperature coefficient of the resistors are... - AbeCollins 09:20:04 09/10/15 (1)
- RE: I wonder what the temperature coefficient of the resistors are... - Mr_Steady 17:50:29 09/10/15 (0)
- 0.1% tolerance resistors would result in a junk DAC - Tony Lauck 17:18:56 09/9/15 (23)
- RE: 0.1% tolerance resistors would result in a junk DAC - Mr_Steady 18:16:32 09/9/15 (1)
- RE: 0.1% tolerance resistors would result in a junk DAC - Tony Lauck 19:09:23 09/9/15 (0)
- Thankfully the board in question comes with choice of... - Ivan303 17:37:36 09/9/15 (20)
- RE: Thankfully the board in question comes with choice of... - Tony Lauck 18:20:39 09/9/15 (19)
- RE: Thankfully the board in question comes with choice of... - TubeDriver 12:19:48 09/10/15 (0)
- RE: Thankfully the board in question comes with choice of... - Mr_Steady 18:57:34 09/9/15 (15)
- RE: Thankfully the board in question comes with choice of... - Tony Lauck 19:16:41 09/9/15 (14)
- RE:Wiki answer - Mr_Steady 19:40:56 09/9/15 (7)
- RE:Wiki answer - rick_m 09:23:02 09/10/15 (6)
- RE:Wiki answer - Mr_Steady 16:50:26 09/10/15 (5)
- RE:Wiki answer - Tony Lauck 09/12/1510:07:39 09/12/15 (4)
- RE:Wiki answer - Mr_Steady 12:19:56 09/12/15 (3)
- RE:Wiki answer - Dynobot 18:13:49 09/12/15 (2)
- RE:Wiki answer - Mr_Steady 06:22:03 09/13/15 (1)
- RE:Wiki answer - Dynobot 07:00:19 09/13/15 (0)
- RE: Thankfully the board in question comes with choice of... - Mr_Steady 19:34:38 09/9/15 (5)
- RE: Thankfully the board in question comes with choice of... - morricab 13:01:53 09/10/15 (1)
- RE: Thankfully the board in question comes with choice of... - Mr_Steady 16:30:10 09/10/15 (0)
- RE: Thankfully the board in question comes with choice of... - Tony Lauck 20:06:29 09/9/15 (2)
- RE: Thankfully the board in question comes with choice of... - ahendler 22:04:33 09/25/15 (0)
- RE: Thankfully the board in question comes with choice of... - Mr_Steady 16:06:40 09/10/15 (0)
- Likely enough to cover the dynamic range of anything found on magnetic tape... - Ivan303 18:38:19 09/9/15 (1)
- RE: Likely enough to cover the dynamic range of anything found on magnetic tape... - Mr_Steady 19:06:41 09/9/15 (0)
- RE: Wonder what the tolerances of the resistors are, or more importantly, what they need to be? - Mr_Steady 10:15:27 09/9/15 (2)
- RE: Wonder what the tolerances of the resistors are, or more importantly, what they need to be? - Mr_Steady 10:22:56 09/9/15 (0)
- Perhaps it's time for a change...maybe something smaller?, - Mr_Steady 10:18:32 09/9/15 (0)
- RE: Discreet R2R Ladder Dacs - ahendler 08:03:55 09/7/15 (25)
- Most if not all do not do DSD so they are next to worthless... - Ivan303 08:35:21 09/7/15 (17)
- Two Rungs do not a ladder make nt - Tony Lauck 17:05:49 09/9/15 (0)
- RE: Most if not all do not do DSD so they are next to worthless... - Mercman 07:32:58 09/8/15 (2)
- RE: Most if not all do not do DSD so they are next to worthless... - ahendler 22:10:44 09/25/15 (0)
- DSD... - Ivan303 11:55:59 09/8/15 (0)
- RE: Most if not all do not do DSD so they are next to worthless... - lokie 05:53:15 09/8/15 (10)
- Why don't you go whine to the moderators about my cat video? - Ivan303 07:46:13 09/8/15 (9)
- RE: Why don't you go whine to the moderators about my cat video? - Mr_Steady 08:03:08 09/8/15 (8)
- Oh, Mr. Steady... - Ivan303 11:46:06 09/8/15 (7)
- RE: Well - Mr_Steady 12:39:16 09/8/15 (6)
- FOUND IT! - Ivan303 17:34:09 09/8/15 (3)
- RE: FOUND IT! - Mr_Steady 17:45:54 09/8/15 (2)
- No nearly as offensive as the poll dancing cow that Chris Garrett used as a default signature .gif for YEARS.. - Ivan303 19:16:57 09/8/15 (1)
- Perhaps it's time for a change...maybe something smaller? - Chris Garrett 09:20:53 09/9/15 (0)
- RE: Well - Bob_C 17:32:27 09/8/15 (0)
- The only one I remember is the cat jumping out of the... - Ivan303 12:57:15 09/8/15 (0)
- RE: Most if not all do not do DSD so they are next to worthless... - ahendler 08:48:08 09/7/15 (1)
- :-) /n - Ivan303 12:08:42 09/7/15 (0)
- RE: Discreet R2R Ladder Dacs - Mr_Steady 08:07:59 09/7/15 (6)
- RE: Discreet R2R Ladder Dacs - AbeCollins 07:13:26 09/8/15 (4)
- RE: Discreet R2R Ladder Dacs - Mr_Steady 16:59:51 09/8/15 (1)
- RE: Discreet R2R Ladder Dacs - AbeCollins 18:36:56 09/9/15 (0)
- Why indeed... - Ivan303 12:29:19 09/8/15 (1)
- RE: Why indeed... - AbeCollins 18:40:08 09/9/15 (0)
- RE: Discreet R2R Ladder Dacs - ahendler 08:48:59 09/7/15 (0)
- Discreet R2R Ladder Dacs - lokie 07:38:25 09/7/15 (2)
- RE: Discreet R2R Ladder Dacs - Mr_Steady 07:49:11 09/7/15 (1)
- RE: Discreet R2R Ladder Dacs - lokie 05:51:15 09/8/15 (0)
Follow Ups
- RE:Wiki answer - Tony Lauck 09/12/1510:07:39 09/12/15 (4)
- RE:Wiki answer - Mr_Steady 12:19:56 09/12/15 (3)
- RE:Wiki answer - Dynobot 18:13:49 09/12/15 (2)
- RE:Wiki answer - Mr_Steady 06:22:03 09/13/15 (1)
- RE:Wiki answer - Dynobot 07:00:19 09/13/15 (0)