GAMMA instabus
Release: February 2012
KNX EIB TP-UART 2-IC
Siemens AG pages 42 Technical Manual
Infrastructure and Cities Sector,
Building Technologies
Control Products and Systems © Siemens AG 2012 page 41
P. O. Box 10 09 53, Subject to change without further notice.
D-93009 Regensburg
5 C3 As close as possible to VCC and GND 3
6 CBYP As close as possible to BYP and VB+ 2
7 C6 As close as possible to VSP and GND 2
8 Y1 As close as possible to X1 and X2
Embed Y1 (crystal) and its connections on the
component side in GND
Place on next layer below Y1 a GND area.
1
9 TP-UART 2
Ground plane on component side and below
TP-UART 2 has to be designed. Four vias are
necessary.
1
Table 27 Layout Guidelines
Figure 12 Layout Top-/Bottom View
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