Hi,
Does anyone have a pinout diagram for this chip in a pioneer pds 703
The chip reads
Legato Link
Pulseflow
P02029A
9514H
Thanks
Raja
Does anyone have a pinout diagram for this chip in a pioneer pds 703
The chip reads
Legato Link
Pulseflow
P02029A
9514H
Thanks
Raja
Hello -
Pinout for the PD2029A is as follows:
1 - S/P
2 - RZ
3 - XTEST
4 - VDA
5 - RO
6 - XRO
7 - GNDA
8 - GNDA
9 - XLO
10 - LO
11 - VDA
12 - GNDX
13 - X1
14 - X0
15 - VDX
16 - GND
17 - C (H384Fs)
18 - LZ
19 - MCK
20 - LATCH
21 - SHIFT
22 - ATT
23 - NC
24 - XRESET
25 - DATA
26 - BCK
27 - LRCK
28 - VDD
Hope this helps,
Charles Hansen
Pinout for the PD2029A is as follows:
1 - S/P
2 - RZ
3 - XTEST
4 - VDA
5 - RO
6 - XRO
7 - GNDA
8 - GNDA
9 - XLO
10 - LO
11 - VDA
12 - GNDX
13 - X1
14 - X0
15 - VDX
16 - GND
17 - C (H384Fs)
18 - LZ
19 - MCK
20 - LATCH
21 - SHIFT
22 - ATT
23 - NC
24 - XRESET
25 - DATA
26 - BCK
27 - LRCK
28 - VDD
Hope this helps,
Charles Hansen
Hi Charles,
Thanks
for the help!!!!
So
pin 5 = right channel non inv out?
6= right inv out
9 = left inv out
10 = left non inv out
Perhaps the wrong way round, but I suppose I can resolder to other pins if it sounds wrong, or even swap wires at the transformer instead if it sounds 'wrong'?
Thanks
Raja
Thanks
for the help!!!!
So
pin 5 = right channel non inv out?
6= right inv out
9 = left inv out
10 = left non inv out
Perhaps the wrong way round, but I suppose I can resolder to other pins if it sounds wrong, or even swap wires at the transformer instead if it sounds 'wrong'?
Thanks
Raja
Hello -
It may be hard to use this without more information, but you can try.
It's apparently a voltage output differential DAC. The RO and LO are the + outputs and the XRO and XLO are the - outputs.
When C is tied high, use a 384 Fs crystal at XI and XO. The MCK is unused in the circuit diagram I have (for a Pioneer DV-505 DVD player). TEST is not connected, while S/P is tied low. The whole thing runs off of 5 volts.
The LZ and RZ outputs are used to mute the analog circuits when there is no audio signal. This is a cheesy trick that all the Japanese companies use to get a better S/N ratio on the test bench, but in no way reflects the real world performance. You can ignore these outputs.
But the real problem is programming the thing. There is a 3 wire programming intreface. This is how you tell it the word length and format of the incoming signal, if de-emphasis should be applied, if you want to attenuate the signal, et cetera.
Without having the full data sheet, you'll have to rely on the default settings, whatever they may be. Typically it will be 16 bits right justified MSB first.
But why go through all this headache when you can by a nice DAC chip for $5 or less that will have a data sheet?
Good luck,
Charles Hansen
It may be hard to use this without more information, but you can try.
It's apparently a voltage output differential DAC. The RO and LO are the + outputs and the XRO and XLO are the - outputs.
When C is tied high, use a 384 Fs crystal at XI and XO. The MCK is unused in the circuit diagram I have (for a Pioneer DV-505 DVD player). TEST is not connected, while S/P is tied low. The whole thing runs off of 5 volts.
The LZ and RZ outputs are used to mute the analog circuits when there is no audio signal. This is a cheesy trick that all the Japanese companies use to get a better S/N ratio on the test bench, but in no way reflects the real world performance. You can ignore these outputs.
But the real problem is programming the thing. There is a 3 wire programming intreface. This is how you tell it the word length and format of the incoming signal, if de-emphasis should be applied, if you want to attenuate the signal, et cetera.
Without having the full data sheet, you'll have to rely on the default settings, whatever they may be. Typically it will be 16 bits right justified MSB first.
But why go through all this headache when you can by a nice DAC chip for $5 or less that will have a data sheet?
Good luck,
Charles Hansen
dac
Hi Charles,
Sorry I should have mentioned that the chip is actually in my pioneer pd-s 703 cdp. I plan to steal the analogue outputs from the chip to the analogue stage at
http://www.ultranalog.com/cdenhancer/cdenhancer2.html
as he has done for his pd-s player.
Perhaps using this version..........
http://www.ultranalog.com/cdenhancer/cdenhancer2_3a5.pdf
Now you have kindly told me the + and - output pins..............
Thanks
Raja
Hi Charles,
Sorry I should have mentioned that the chip is actually in my pioneer pd-s 703 cdp. I plan to steal the analogue outputs from the chip to the analogue stage at
http://www.ultranalog.com/cdenhancer/cdenhancer2.html
as he has done for his pd-s player.
Perhaps using this version..........
http://www.ultranalog.com/cdenhancer/cdenhancer2_3a5.pdf
Now you have kindly told me the + and - output pins..............
Thanks
Raja
Hello -
OK, you should be fine adding that analog stage. I was thinking that you were trying to make a DAC from scratch. I think you will experience a *huge* improvement in sound quality.
Good luck,
Charles Hansen
OK, you should be fine adding that analog stage. I was thinking that you were trying to make a DAC from scratch. I think you will experience a *huge* improvement in sound quality.
Good luck,
Charles Hansen
Hi Charles,
The output stage is finished (sounds fantastic) and I'm thinking of installing a better clock than the stock one (should have done it first!!). Looking at the specs pin 13 is clock input and pin 14 output?
Thanks
Raja
The output stage is finished (sounds fantastic) and I'm thinking of installing a better clock than the stock one (should have done it first!!). Looking at the specs pin 13 is clock input and pin 14 output?
Thanks
Raja
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