American Audio UCD-200 - REV 8-10 User Manual Page 26

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SARA-U2 series - Data Sheet
UBX-13005287 - R05 Early Production Information Electrical specifications
Page 26 of 51
4.2.5 ANT_DET pin
Pin Name
Parameter
Min.
Typ.
Max.
Unit
Remarks
ANT_DET
Output DC current pulse
value
10
µA
Output DC current pulse time
length
128
µs
Table 15: ANT_DET pin characteristics
4.2.6 PWR_ON pin
Pin Name
Parameter
Min.
Typ.
Max.
Unit
Remarks
PWR_ON
Internal supply for Power-On
Input Signal
1.71
1.80
1.89
V
RTC supply (V_BCKP)
L-level input
-0.30
0.65
V
High input impedance (no internal pull-up)
H-level input
1.50
4.40
V
High input impedance (no internal pull-up)
L-level input current
-6
µA
PWR_ON low time
to switch-on the module
50
80
µs
PWR_ON low time
to switch-off the module
1000
ms
Table 16: PWR_ON pin characteristics (POS domain)
4.2.7 RESET_N pin
Pin Name
Parameter
Min.
Typ.
Max.
Unit
Remarks
RESET_N
Internal supply for External
Reset Input Signal
1.71
1.80
1.89
V
RTC supply (V_BCKP)
L-level input
-0.30
0.51
V
H-level input
1.32
2.01
V
L-level input current
-180
µA
Pull-up resistance
10
k
Internal pull-up to RTC supply (V_BCKP)
RESET_N low time
to perform a proper reset
50
ms
Table 17: RESET_N pin characteristics (ERS domain)
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