Description


Item specifics

● Condition : New

● Model : D20400A-C025

● Country/Region of Manufacture : United States

● MPN : D20400A-C025

● Brand : Ultra Analog



eBay
This listing is for schematic diagram I ripped during D20400A-C025 DAC module repair. 

If you have DAC with some problem (such as sound distortion in one channel) - it may help you to understand principles of this DAC functioning and to track malfunction to the failed component or failed solder joint. 

Look at the photos of the actual module - schematic is only for PCB on the photo, with Burr-Browns DAC7541 digital-to analog converter ICs. D20400 has some different versions, so if you have other version - schematic may not match your device. Buy with confidence.

Note: 
Reference designators (such as R1, C1, U1) are random as they were not marked on my PCB.
Capacitances of the SMD capacitors are not shown as they were not marked on the components. 
Resistances are shown exactly as they were in my module. There are about 20 of resistors adjusted during module calibration at the factory, so they can be slightly different in your module.

I email you schematiс in the .pdf format on the address you show me the day after payment is cleared.