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TAS2781: TAS2781 Hybrid-Pro with TAS5825P Hybrid-Pro

Part Number: TAS2781
Other Parts Discussed in Thread: TAS5825P,



Just wanted to make sure if it is possible to have both the Hybrid-Pro from the TAS2781 and TAS5825P connected to each other like shown here:

In this application 2x TAS2781 and a TAS5825P share the same I2S LRCLK and BCLK and all operate at 1.8V IO-Voltage.

All the Hybrid-Pro PWM outputs are directly connected to each other in Open-Drain config and a Pull-Up resistor to 1.8V (resistor not shown).

All PWM outputs are set to 16-Step 192KHz and will use the LowPass-Filter suggested in PPC3 for the TAS5825P.


Alternative connection config:

All 3 Hybrid-Pro PWM outputs are set to Push-Pull outputs and are connected to a 3-Input OR-Gate with Push-Pull output, like the SN74LVC1G332. This output is then routed through the LowPass-Filter suggested in PPC3 for the TAS5825P.


The PPC3 Config:




Is this possible and is there anything specific that needs to be taken into account?