I only know of one design using the YM3623B with an input transformer, though I don't doubt there are others.
Yes, the one that we used to build has one. (Are you surprised?)
Missed this thread first time around........out of town.......
I would use a linear stage ahead of the '3623. Even though it is not in favour, it dumps very little energy back onto the line. Unlike the popular RX chips.........
The only way to reduce the jitter with another clock is to use a secondary PLL. An oscillator by itself is not going to do anything, unless you slave the transport. I believe a guy who sells them was already mentioned.
Turning off the crystal on the RX chip after lock helps some.
Jocko
Re: PDM-100
http://www.vt52.com/ftp/semi/pmd100.pdf
znarfomat said:Hi,
is anyone out there who has a datasheet of Pacific Microsonics PDM-100?
I'd be very happy if someone could send it to me.
http://www.vt52.com/ftp/semi/pmd100.pdf
Diogenio said:
Specific Questions:
1. Does anybody have the original ap notes for this demo board, and also for the DF1700 filter chip? They are NOT available on the B-B (now TI) website!
I'm also looking for that app-note...
-and wonder about the pin9 connection, that some use, some don't...
Arne K
Re: Re: B-B PCM63 Demo Board as DAC...any Mods?
Pin9 of what?
Cobra2 said:
I'm also looking for that app-note...
-and wonder about the pin9 connection, that some use, some don't...
Arne K
Pin9 of what?
Re: Pin 9
Pins 9 and 10 are the ends of the feedback resistor, it can be used for setting the gain when using an op-amp based I/V.
The appnote is pretty much the same as the diagram at the back of the PCM63 datasheet.
Cobra2 said:On the PCM63 !
Seems that it is used with most op-amp "I/V" , but not with discrete...
Arne K
Pins 9 and 10 are the ends of the feedback resistor, it can be used for setting the gain when using an op-amp based I/V.
The appnote is pretty much the same as the diagram at the back of the PCM63 datasheet.
Re: Thanx, rfbrw
As the D1 stage is AC coupled you need not connect pin5. On its own pin5 swings from 0 to -4ma. Pin6 adds 2ma, making the output swing from -2ma to +2ma.
Cobra2 said:Conclusion; it shoud be cut when using the D1 i/v-stage,
- only pin 5 & 6 is used for output.
Arne K
As the D1 stage is AC coupled you need not connect pin5. On its own pin5 swings from 0 to -4ma. Pin6 adds 2ma, making the output swing from -2ma to +2ma.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Source & Line
- Digital Source
- B-B PCM63 Demo Board as DAC...any Mods?