TLV5619 interface?

SUNDARESAN SUNDARARAJ

Other Parts Discussed in Thread: TLV5619

Hi,

I am using a Micro controller (dsPIC) to interface with TLV5619 12 bit DAC and was wondering if /WE pin can be grounded permanently. Does the data only loads when /WE goes high? Also what about /LDAC pin.

Please advice.

regards

Sundar.S

over 8 years ago

0 Paul_Frost over 8 years ago

TI__Guru 53923 points

Sundar,

The TLV5619 will only latch the data on the parallel bus on the rising edge of WE while CS is low. LDAC can be tied to ground though if a second update mechanism is not needed.

Please let me know if you have any more questions.

Paul

0 SUNDARESAN SUNDARARAJ over 8 years ago in reply to Paul_Frost

Prodigy 20 points

Hi Paul,
Thanks for the clarification. Is /LDAC pin only used when multiple DAC's are used? I am not very clear about LDAC pin function when it is not grounded.

Regards
Sundar.S

0 Paul_Frost over 8 years ago in reply to SUNDARESAN SUNDARARAJ

TI__Guru 53923 points

In a application with multiple DACs the LDAC pin could be used to synchronize all of the DACs so that the outputs change at the same time. The WE and CS pins would allow the user to select individual DACs to write to. in an application with just one DAC the user could just use the WE and CS achieve this functionality.

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TLV5619 interface?