mc33794 Freescale Semiconductor, Inc, mc33794 Datasheet - Page 14

• Manufacturer Part Number: mc33794
• Description: Electric Field Imaging Device
• Manufacturer: Freescale Semiconductor, Inc

14
MC33794
Electrode Select
VCC
Shield Disable
MCU
Analog_IN
Analog_IN
Analog_IN
Analog_IN
Watchdog
ISO_Rx
ISO_Tx
Reset
GPx
47
µ
F
10 nF
(
(Optional)
(Optional)
Optional
Indicator
Lamp
EXAMPLE APPLICATION DIAGRAM
4
Figure 3. Example Application Diagram
)
0.1
39 k
µ
LAMP_OUT
LP_CAP
LEVEL
PWR_MON
LAMP_MON
LAMP_SENSE
ISO_IN
VDD
ISO_OUT
SHIELD_EN
RST
LAMP_CTRL
LAMP_GND
TEST
WD_IN
Ω
A, B, C, D
+9 to +18 V
R_OSC
F
_
V
MON
PWR
33794
ISO-9141
AGND
SIGNAL
SHIELD
REF_A
REF_B
GND
VCC
VDD
E1
E2
E9
47
100 pF
µ
F
Monitor (Optional)
10 k
1
9
2
Freescale Semiconductor
10 pF
Ω
ISO-9141 Bus
Field
Electrodes
Sensors