MAX-7 / NEO-7 - Hardware Integration Manual
UBX-13003704
-
R09
Production Information
Design
Page
29 of 52
For more information about how to implement and configure OCD, see
u-blox 7 Receiver Description
including Protocol Specification
If the antenna supply voltage is not derived from VCC_RF, do not exceed the maximum voltage rating of
the
AADET_N
pin.
For more information, see section 3.4.3.1.
3.4.3.4
External active antenna supervisor using customer uP (NEO-7N, MAX-7Q, MAX-7C)
Figure 25: External active antenna supervisor using ANT_ON
RF
Vcc
R
R
R
R
I
b ia s
_
3
2
2
Equation 2: Calculation of threshold current for open circuit detection
