fault 管脚——如何防止功放POP声(5)

NTP系列,fault 管脚的作用

NeoFidelity, Inc.

Design Guide

NTP8XXX-001-R02

Fig. 1 Typical circuit for /FAULTB

the mute function.

Fig. 2 Example circuit for mute function

an external controller handles a power down sequence for abnormal power status, /FAULT can be left open or tied to VDD_IO, +3.3V, as shown in Fig. 3.