Atmel ATA6620-EK, ATA6623-EK Application Note page 4

2. Schematic and Layout of the Development Board for the Atmel ATA6620/23/25
Figure 2-1. Schematic of the Development Board for the Atmel ATA6620/23/25
GND
VBAT
VCC
NRES
RXD
EN
TXD
LIN
X1
Notes: 1. D2 and R1 are only necessary for a master node.
2. R2 is only needed for Atmel ATA6623 and Atmel ATA6625.
Figure 2-2. Board Component Placement; Top Side, Top View
4 ATA6620/23/25 [APPLICATION NOTE]
4969C–AUTO–07/15
D1
LL4148
VS
VCC
D2
LL4148
NRES
R1
RXD
1kΩ
VS
EN
GND
TXD
LIN
C3
220pF
+
C2 C1
100nF
22µF/50V
VCC
1 8
NRES
ATA6620/
2 7
ATA6623/
TXD
3 6
ATA6625
RXD
4 5
ATA6620-EK
ATA6623-EK
ATA6625-EK
Revision 2.0 / 2.1
VCC
+
C5
R2
10µF
10kΩ
NRES
TXD
RXD
C4
100nF