Need help about AD1853 DAC.

[shyliang]

I want to build a DAC with CS8414 and AD1853,
but i don't know how many PF C52* and C53*
(remarked in the picture below) should be .
Can some one tell me?
I want to use OPA2604 instead of OP275.
Thanks!!!!

 

[banana]

this is common abbreviation for lazy engineers.
NU = Not Used
NC = Not Connected
NP = Not Populated

They all means the same, and in this case, the cap should be 0pF.

 

[zigzagflux]

Could also mean non-polarized, but it doesn't seem to be so in this schematic. They are using symbols to indicate polarity.

 

[shyliang]

Thanks.
Why C57 NP0 is 220PF?
What dose NP0 mean?

 

[ALP]

Some operational amplifiers don`t like ultrasound signals on input. This capacitors is simply filter for it. Value may be 100-4700 pF range. Use high speed opamp, then this capacitors not needed. Looks like AD812.

ALP

 

[shyliang]

OH,I see.
THANK YOU SO MUCH!

 

[Marek]

I've made DAC on AD1853 (PCM2702-DIR1703-AD1896-AD1853) with the same output stage suggested by Analog. I used OPA627 for I/V and AD797 for filter with great results.

 

[morpheus82]

marek, could you post the schematic,please?😉