Other Parts Discussed in Thread: TAS5782M,
Hi Audio Team,
My customer is using the TAS5782EVM and is looking at reproducing the idle power consumption information in the datasheet on page 20. In particular the 37mA on the PVDD rail in the 24V PVDD, 4 Ohm load, 768kHz, Idle configuration.
In 2 different configurations, this was measured on the EVM with one (of the two) device enabled (and unmuted) and in both cases the EVM is showing around 120mA PVDD (24V) current. This is a little more than 3x higher than stated.
In the first configuration, the EVM was connected to the PPCMB (Rev F, +4V powered via an external supply) and using the EVM GUI to control the status of the device.
In the second configuration, the EVM was separated from the PPCMB and the I2C/I2S/3.3V were provided directly from an alternate source.\
In both cases a resistive 4Ohm load was used.
We are very interested for your thoughts on why the PVDD current draw would be so much higher than expected.
Please let me know if you have any questions, thank you!
Regards,
~John