
17
9204C–AUTO–09/11
Atmel ATA6670 [Preliminary]
Figure 6-2. Typical Application Circuit
Figure 6-3. Application with Minimum External Devices: INH2 Output and WAKE2 Input Not Used
100nF
220pF
22µF/50V
1
RXD1
EN1
TXD1
RXD2
EN2
WAKE2
TXD2
RXD1
EN1
+5V
TXD1
RXD2
EN2
ADC
VCC
GND
TXD2
VS1
S1
C4 C3 C7
C6 220pF
LIN1
GND1
INH2
VS2
LIN1
GND
VBAT
LIN2
LIN2
GND2
2
3
4
5
Wake
Switch
6
7
14
13
12
11
10
9
8
R1
4.7kΩ
R5
R7
2.7kΩ
R2
4.7kΩ
+
R6
10kΩ
R3
1kΩ
D3
LL4148
R4
1kΩ
D4
LL4148
D2
LL4148
R8
Atmel
ATA6670
(DFN14)
Micro-
controller
100nF
220pF
22µF/50V
1
RXD1
EN1
TXD1
RXD2
EN2
WAKE2
TXD2
RXD1
EN1
+5V
TXD1
RXD2
EN2
VCC
GND
TXD2
VS1
C4 C3 C7
C6 220pF
LIN1
GND1
INH2
VS2
LIN1
GND
VBAT
LIN2
LIN2
GND2
2
3
4
5
6
7
14
13
12
11
10
9
8
R1
4.7kΩ
R2
4.7kΩ
+
R3
1kΩ
D3
LL4148
R4
1kΩ
D4
LL4148
Atmel
ATA6670
(DFN14)
Micro-
controller
D2
LL4148
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