TDA7803A: What's the meaning of the Unit 'Vp' in Voltage Gain section on the datasheet

[YSun.7]

In TDA7801 datasheet, voltage gain marked as db(Vp), if the full scale output level of internal dac is 2vrms, with a gain at 16db, the amplifier full scale at 12.7vrms(if no rail limit), Is that correct?

But in TDA7803A/TDA7808 datasheet, voltage gain has a unit of Vp. So, can we calculate the gain in db as

2vrms@0dbFS -> 0.25vrms@-18dbFS -> 20db gain -> 2.5Vrms (matched with datasheet except for Unit Vp) ?