MLX74190 Datasheet, PDF (4/14 Pages) Melexis Microelectronic Systems – Two-Fold High Power LF Initiator With integrated Immobilizer

MLX74190
Two-Fold High Power LF Initiator
With integrated Immobilizer
1 Pin out description
Pin №
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
36
38
41
47
48
14, 46
26,27,28,29,30,
31,32, 33, 34,
35, 37,39, 40,
42, 43, 44, 45
Name
FSK_RX2
FSK_FB2
IP_SENSE
RBIAS
EXT_CLK
CLK_IN
OSC
OUT1
GND
VS
OUT2
CLK_OUT
WUP
SCLK
NCS
SDO
SDI
IRQ
D_OUT
RDI
VDDA_CAP
ASK_RX1
ASK_RX2
AGND
VDD
DGND
VDDD_CAP
FSK_RX1
FSK_FB1
Reserved
NC
Type
Analog
Analog
Analog
Analog
Digital
Digital
Analog
Analog
Ground
Supply
Analog
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Supply
Analog
Analog
Ground
Supply
Ground
Supply
Analog
Analog
NA
NA
Function
FSK Immobilizer input pin 2
FSK Immobilizer feedback loop 2
Current Measurement Output Voltage
Reference Resistor connection for trimming the current reference
External clock used in combination with CLK_IN to connect an external resonator
Input clock coming from MCU or connected to external resonator
125KHz clock input/output
Antenna connection (driver output 1)
Power ground for driver outputs
Supply for driver outputs
Antenna connection (driver output 2)
2MHz clock output
Wake up pin
Serial clock for SPI
Not chip select for SPI
Slave data output for SPI
Slave data input for SPI
Interrupt signal output
Immobilizer data / Digital modulation output signal
Input signal for direct LF modulation (RDI = Remote_Data_In)
Analog internal regulator decoupling cap.
ASK Immobilizer input 1
ASK Immobilizer input 2
Analog ground
5V supply
Digital ground
Digital internal regulator decoupling capacitor
FSK Immobilizer input pin 1
FSK Immobilizer feedback loop 1
Must be externally connected to ground
Not connected
EXP
EXP
Ground Exposed PAD, to be connected to ground
Table 3: Pin out description
390107419001
Rev. 001
Page 4 of 14
Product Preview
Sept-2014