Drive NOS AD1865/62,PCM1704/02/63,TDA1541 from FIFO: Universal I2S-PCM driver board

+1 please!
Total 69.

You are meant to put your name on the end of the list.. but I have done it for you.

I'm also changing mine to 1 (or 2) -depends on the final price :)

TV Man x 2
merlin el mago
rtd
jameshillj
erin x1 (or 2)
Nikola Krivorov x 3
Rupor54
vitalica
analog_sa
andrea_mori x 5
dsavitsk
tagheuer
hirez69 x 2
ccliu x 2
BDL
cddumat
regal x 2
zoran
Jogi
Zen(zenelectro) x 2
Buzzforb
SPWON
crobbins5421 X 2
marcus1 X 2
casshan x 2
Dweeb99 X 2
jackw X 2
kazap X 2
danzup x 3
Giordano x2
Tony_T
Tubo x1
clivem x2
noizas x2
JoeyDD x2
skullaudio
dinos8746 x2
dvb-projekt
bisesik x2
guglielmope x1
Valeriano x1
mhgawel x1
av-trouvaille x 1 (or 2)
iloveswan x1
dtses
 
I2S to PCM daughter board new PCB design GB version V2.0

PCB design revised once again

1. Layout was optimized for low noise and transition line impendence matching
2. Double CLK and LLLR outputs for dual mono DACs
3. Enhanced power supply layout available for both on board low noise LDO and external high quality PSU
4. Additional DC output connector position for powering the possible I2S isolator

Please let me know for any comment.

Ian
 

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Hello Ian, all enhancements are welcome :) - especially the first two

From a two layer board I think you squeezed out the maximum.
I have one suggestion regarding the bottom side output LLLR, CLK traces: it seems that they intersect the top LLLR, CLK so neither have a continuous ground plane beneath/above - you could trace them as their top counterparts so both would see continuous ground plane beneath/above. If this is not possible I would rather skip the bottom outputs.

Would a four layer board raise fabrication costs too much?
Zsolt
 
It raises indeed... at the factory from Hungary I know it raises from ~4EUR (2 layer) to ~11EUR (4 layer)/piece - for a batch of 80.
...of course we shouldn't count only these +7euros as there would be more work from Ian's side to redo the ground planes.
 
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Hello Ian, all enhancements are welcome :) - especially the first two

From a two layer board I think you squeezed out the maximum.
I have one suggestion regarding the bottom side output LLLR, CLK traces: it seems that they intersect the top LLLR, CLK so neither have a continuous ground plane beneath/above - you could trace them as their top counterparts so both would see continuous ground plane beneath/above. If this is not possible I would rather skip the bottom outputs.

Would a four layer board raise fabrication costs too much?
Zsolt

Hi Zsolt,

You make a very good point. I move the two bottom u.fl sockets to a better position, now all the impendence controlled traces have continues ground plate underneath:).

With same FR4, the main difference between 4L and 2L is that 50 ohm impendence trace on 2L is much bigger than on 4L. However if we could make the trace short enough, it won't take that much space on PCB. Actually, for a same board layout, four layer design is easier than two layer design. However, for a small quantity production, the cost will be increased rapidly. If we go four layer, the finial price of the finished board can close to $90, that’s too much for this daughter board I think:).

Ian
 

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1 for me too. Total now 70.

TV Man x 2
merlin el mago
rtd
jameshillj
erin x1 (or 2)
Nikola Krivorov x 3
Rupor54
vitalica
analog_sa
andrea_mori x 5
dsavitsk
tagheuer
hirez69 x 2
ccliu x 2
BDL
cddumat
regal x 2
zoran
Jogi
Zen(zenelectro) x 2
Buzzforb
SPWON
crobbins5421 X 2
marcus1 X 2
casshan x 2
Dweeb99 X 2
jackw X 2
kazap X 2
danzup x 3
Giordano x2
Tony_T
Tubo x1
clivem x2
noizas x2
JoeyDD x2
skullaudio
dinos8746 x2
dvb-projekt
bisesik x2
guglielmope x1
Valeriano x1
mhgawel x1
av-trouvaille x 1 (or 2)
iloveswan x1
dtses
Flyboi X1
 
Disabled Account
Joined 2009
TOTAL 71

TV Man x 2
merlin el mago
rtd
jameshillj
erin x1 (or 2)
Nikola Krivorov x 3
Rupor54
vitalica
analog_sa
andrea_mori x 5
dsavitsk
tagheuer
hirez69 x 2
ccliu x 2
BDL
cddumat
regal x 2
zoran
Jogi
Zen(zenelectro) x 2
Buzzforb
SPWON
crobbins5421 X 2
marcus1 X 2
casshan x 2
Dweeb99 X 2
jackw X 2
kazap X 2
danzup x 3
Giordano x2
Tony_T
Tubo x1
clivem x2
noizas x2
JoeyDD x2
skullaudio
dinos8746 x2
dvb-projekt
bisesik x2
guglielmope x1
Valeriano x1
mhgawel x1
av-trouvaille x 1 (or 2)
iloveswan x1
dtses
Flyboi X1
Lil' Knight x1 (or 2)
 
Changed number wanted - 1, possibly 2

TOTAL 71

TV Man x 2
merlin el mago
rtd
jameshillj
erin x1 (or 2)
Nikola Krivorov x 3
Rupor54
vitalica
analog_sa
andrea_mori x 5
dsavitsk
tagheuer
hirez69 x 2
ccliu x 2
BDL
cddumat
regal x 2
zoran
Jogi
Zen(zenelectro) x 2
Buzzforb
SPWON
crobbins5421 X 2
marcus1 x1 (or 2)
casshan x 2
Dweeb99 X 2
jackw X 2
kazap X 2
danzup x 3
Giordano x2
Tony_T
Tubo x1
clivem x2
noizas x2
JoeyDD x2
skullaudio
dinos8746 x2
dvb-projekt
bisesik x2
guglielmope x1
Valeriano x1
mhgawel x1
av-trouvaille x 1 (or 2)
iloveswan x1
dtses
Flyboi X1
Lil' Knight x1 (or 2)
__________________
 
Update of list

I have updated my need (2 to 4)

TOTAL 73

TV Man x 2
merlin el mago
rtd
jameshillj
erin x1 (or 2)
Nikola Krivorov x 3
Rupor54
vitalica
analog_sa
andrea_mori x 5
dsavitsk
tagheuer
hirez69 x 2
ccliu x 2
BDL
cddumat
regal x 2
zoran
Jogi
Zen(zenelectro) x 2
Buzzforb
SPWON
crobbins5421 X 2
marcus1 x1 (or 2)
casshan x 2
Dweeb99 X 2
jackw X 2
kazap X 2
danzup x 3
Giordano x2
Tony_T
Tubo x1
clivem x2
noizas x4
JoeyDD x2
skullaudio
dinos8746 x2
dvb-projekt
bisesik x2
guglielmope x1
Valeriano x1
mhgawel x1
av-trouvaille x 1 (or 2)
iloveswan x1
dtses
Flyboi X1
Lil' Knight x1 (or 2)
__________________
 
One for me thanks
TOTAL 74

TV Man x 2
merlin el mago
rtd
jameshillj
erin x1 (or 2)
Nikola Krivorov x 3
Rupor54
vitalica
analog_sa
andrea_mori x 5
dsavitsk
tagheuer
hirez69 x 2
ccliu x 2
BDL
cddumat
regal x 2
zoran
Jogi
Zen(zenelectro) x 2
Buzzforb
SPWON
crobbins5421 X 2
marcus1 x1 (or 2)
casshan x 2
Dweeb99 X 2
jackw X 2
kazap X 2
danzup x 3
Giordano x2
Tony_T
Tubo x1
clivem x2
noizas x4
JoeyDD x2
skullaudio
dinos8746 x2
dvb-projekt
bisesik x2
guglielmope x1
Valeriano x1
mhgawel x1
av-trouvaille x 1 (or 2)
iloveswan x1
dtses
Flyboi X1
Lil' Knight x1 (or 2)
skippyboy x1
 
TOTAL 74

TV Man x 2
merlin el mago
rtd
jameshillj
erin x1 (or 2)
Nikola Krivorov x 3
Rupor54
vitalica
analog_sa
andrea_mori x 5
dsavitsk
tagheuer
hirez69 x 2
ccliu x 2
BDL
cddumat
regal x 2
zoran
Jogi
Zen(zenelectro) x 2
Buzzforb
SPWON
crobbins5421 X 2
marcus1 x1 (or 2)
casshan x 2
Dweeb99 X 2
jackw X 2
kazap X 2
danzup x 3
Giordano x2
Tony_T
Tubo x1
clivem x2
noizas x4
JoeyDD x2
skullaudio
dinos8746 x2
dvb-projekt
bisesik x2
guglielmope x1
Valeriano x1
mhgawel x1
av-trouvaille x 1 (or 2)
iloveswan x1
dtses
Flyboi X1
Lil' Knight x1 (or 2)
skippyboy x1
acccruz x1 (or 2)