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CXD1170M

Notes on Operation

• How to select the output resistance

The CXD1170M is a D/A converter of the current output type. To obtain the output voltage connect the

resistance to IO pin. For specifications we have:

Output full scale voltage

Output full scale current

× R. Also, 16 times resistance of the

value that does not actually exist. In such a case a value close to it can be used as a substitute. Here please

× 16R/R'. R is the resistance connected to IO while R' is connected to

settling time will inversely increase. Set the most suitable value according to the desired application.

• Phase relation between data and clock

To obtain the expected performance as a D/A converter, it is necessary to set properly the phase relation

between data and clock applied from the exterior. Be sure to satisfy the provisions of the setup time (

hold time (

digital and analog, bypass respective GNDs by using a ceramic capacitor of about 0.1µF, as close as

possible to the pin.

• Latch up