|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc. |
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
|
|
|
Thread Tools | Search this Thread |
|
|
#1 |
|
diyAudio Member
Join Date: Jul 2003
Location: Waterloo
|
I'm using a PLL1707 in a DAC design, where the PLL output goes to an ASRC and a DAC. The PLL1707 datasheet recommends using an output buffer. Searching through previous posts there I've seen people using several different chips for this role (ie: a CDCVF25081 or a SN74AUC1G240). I've also seen schematics where no buffer has been used. I'm hesitant to use a buffer if none is needed, but I also have no idea what the driving capability of a PLL1707 is. It's only two ICs and relatively short traces, so I'm almost certain I don't really need a buffer, but does anyone have any thoughts on this?
Thanks, Dave |
|
|
|
|
#2 |
|
diyAudio Member
Join Date: Apr 2004
Location: Kongsberg/Oslo
|
Why do you use a PLL with an async reclocker?
|
|
|
|
|
#3 |
|
diyAudio Member
Join Date: Jul 2003
Location: Waterloo
|
The topology is something like the one in the attached schematic. I honestly can't remember where I found this schematic, so I apologize for posting it without credit.
In any case, the topology is basically irrelevant. What I'd like to know is if anyone knows the driving capability of the PLL17xx series of PLLs. At the moment I'm assuming they have the ability to drive two inputs and a few inches of trace. I find it hard to believe you'd need a buffer unless you were driving to another board or something like that. That being said, on more than one occasion I have been wrong, so if this is one those cases, please let me know! Thanks, Dave |
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
|
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| clock (bck) buffer SAA7220 | Jaman | Digital Source | 4 | 7th July 2007 06:33 PM |
| CS8412, PMD100, PCM63, onboard clock + [word] clock output implementation | stolbovoy | Digital Source | 7 | 3rd December 2004 08:18 PM |
| want to make cd clock with buffer out | TKK1010 | Digital Source | 0 | 18th August 2004 08:46 AM |
| Opamp + buffer, how to bypass buffer at HF for unity gain? | Christer | Solid State | 10 | 29th October 2003 07:50 AM |
| Kwak clock versus Tent clock | rbroer | Digital Source | 22 | 21st September 2003 02:20 PM |
| New To Site? | Need Help? |
| Page generated in 0.10098 seconds (67.06% PHP - 32.94% MySQL) with 11 queries |