Specifications

CINTERION
®
BGS12 Hardware Interface Description
Contents
102 of 109
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BGS12 HID_V00.915
Confidential / Released
2019
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7.1 Blocking against RF on Interface Lines
To reduce EMI issues there are serial resistors implemented on the module for the ignition,
UART0, UART1 and UART2 lines (cp. Section 5.8). There are 560Ohm serial resist- ors on
UART0, UART1 andUART2 lines. However, all other signal lines have no EMI measures on
the module and there are no blocking measures at the module’s interface to an external
applica- tion.
Dependent on the specific application design, it might be useful to implement further EMI
measures on some signal lines at the interface between module and application. These mea-
sures are described below.
There are five possible variants of EMI measures (A-E) that may be implemented between
module and external application depending on the signal line (see Figure 60 and Table 37).
Pay attention not to exceed the maximum input voltages and prevent voltage overshots if
using inductive EMC measures.
The maximum value of the serial resistor should be lower than 1kOhm on the signal line. The
maximum value of the capacitor should be lower than 50pF on the signal line. Please observe
the electrical specification of the module interface and the application interface.
Figure 60: EMI circuits