GPS receiver A1080-A
10.5.1.2 External reset circuit
If – for some reasons – an external reset input is really desired, the use is subject to
following restrictions:
(1) Never ever connect a capacitor of any size to the nRESET pin.
(2) Never ever pull the nRESET pin actively high.
(3) Only use an open drain/collector device (e.g. a bipolar NPN transistor to
ground, see Fig. 1) to pull the nRESET pin low in order to issue a reset.
(4) Make sure that the nRESET pulse is absolutely glitch free with sharp edges
and lasts at least 100ms.
Figure 14: Application note: External reset circuit
Page 26 of 31
User’s Manual
V2.3 - 07/07
