MLX74190 Datasheet, PDF (10/14 Pages) Melexis Microelectronic Systems – Two-Fold High Power LF Initiator With integrated Immobilizer

5 Application Information
Typical application schematic is shown below:
VS
MLX74190
VS
MLX74190
Two-Fold High Power LF Initiator
With integrated Immobilizer
+5V
FSK_FB
FSK_RX
(Immo)
ASK_RX
(Immo)
Remote Data (Opt)
MCU (A/D)
SCLK
SDI
SDO
NCS
IRQ
WUP
CLK_IN 2MHz (Opt.)
REMOTE_DATA_IN
IP_SENS
SCLK
SDI
SDO
NCS
IRQ
WUP
CLK_IN
EXT_CLK
4MHz crystal
is optionnal
OUT1
RS1 ^CS1
OUT2
CLK_OUT
OSC
DOUT
RS2 ^CS2
MCU
Figure 4: typical application schematic passive start
390107419001
Rev. 001
Page 10 of 14
Product Preview
Sept-2014