mc33690dw Freescale Semiconductor, Inc, mc33690dw Datasheet

Page 1

... REV 4.8 © Motorola, Inc., 2002. For More Information On This Product, STANDALONE TAG READER VSUP SOURCE GATE MODE1 MODE2 ORDERING INFORMATION Device MC33690DW Go to: www.freescale.com Order this document by MC33690/D MC33690 CIRCUIT DW SUFFIX Plastic Package CASE 751D Pin Connections 1 20 ...

Page 2

... Freescale Semiconductor, Inc. BLOCK DIAGRAM Optional : external N channel MOS required for sourced current > 50mA. A recommended reference is MMFT 3055VL from Motorola. VBAT C 1 GATE SOURCE VDD VDD 10µF VSS R TD1 TD2 C CEXT EXT 10nF AGND MOTOROLA SEMICONDUCTORS PRODUCTS © ...

Page 3

... Freescale Semiconductor, Inc. MAXIMUM RATINGS Rating Supply voltage Supply voltage without using the voltage regulator ( SUP DD Voltage on SOURCE Current into/from GATE Voltage on GATE Voltage on pins : MODE1/2, CEXT, DOUT, LVR, XTAL1/2, Rx, Tx Voltage on RD Voltage on K and AM Current on TD1 & TD2 (Drivers on & ...

Page 4

... Freescale Semiconductor, Inc. PIN FUNCTION DESCRIPTION Pin Function 1 VSUP 2 SOURCE 3 GATE 4 TD1 5 VSS 6 VDD 7 TD2 8 MODE1 9 MODE2 AGND 12 CEXT 13 DOUT 14 LVR 15 XTAL2 16 XTAL1 MOTOROLA SEMICONDUCTORS PRODUCTS © Motorola, Inc., 2002. For More Information On This Product, MC33690 ...

Page 5

... Freescale Semiconductor, Inc. DESCRIPTION TAG READER MODULE The Tag Reader module is dedicated for automotive or industrial applications where information has to be transmitted contactless. The tag reader module is a write/read (challenge/ response) controller for applications which demand high security level. The tag reader module is connected to a serial tuned LC circuit which generates a magnetic field power supplying the tag ...

Page 6

... Freescale Semiconductor, Inc. Read function When answering to the base station, a transponder generates an absorption modulation of the magnetic field. It results in an amplitude/ phase modulation of the current across the antenna. This information is picked up at the antenna tap point between the coil and the capacitor. An external resistive ladder down ...

Page 7

... Freescale Semiconductor, Inc. VOLTAGE REGULATOR The low dropout voltage regulator provides a regulated 5V supply for the internal circuitry. It can also supply external peripherals or sensors. The input supply voltage ranges from 5.5V to over 40V. This voltage regulator uses a series combination of high voltage LDMOS and low voltage PMOS transistors to provide regulation ...

Page 8

... Freescale Semiconductor, Inc. ISO 9141 PHYSICAL INTERFACE This interface module is fully compatible with the ISO 9141 norm describing the diagnosis line. It includes one transmitter (pin K) and 2 receivers (pins K and AM). The input stages consist of high voltage CMOS triggers. The thresholds are ratiometric to VSUP. ...

Page 9

... Freescale Semiconductor, Inc. COMMUNICATION MODES DESCRIPTION The STARC offers 3 different communication modes. Therefore it can be used as a standalone circuit connected to an Electronic Control Unit Table 1. Communication modes description Configuration Type Bus type Name 1 wire A (VBAT) Standalone 2 wires B (VBAT) Direct 2 wires connection C (VDD) ...

Page 10

... Freescale Semiconductor, Inc. STANDALONE CONFIGURATION WITH ONE WIRE BUS When a low level is applied on pins MODE1 and MODE2, the circuit is in configuration A (standalone single wire bus configuration, see figure 13 page 18). After power on, the circuit is set into read mode. The demodulator output is directly routed to the ISO 9141 interface output K ...

Page 11

... Freescale Semiconductor, Inc. Timing definitions for a 8MHz crystal crystal oscillator period (125 ns typ.) ref - T =8064.T = 1.008ms typ. 0 ref - T ’=7932.T = 0.992ms typ. 0 ref - T =16256.T = 2.032ms typ. 1 ref - T ’=16128.T = 2.016ms typ. 1 ref - T =4096 512µs typ. 2 ref T is the minimum time required to guarantee ...

Page 12

... Freescale Semiconductor, Inc. STANDALONE CONFIGURATION WITH TWO WIRES BUS When a low level is applied on MODE1 and a high level on MODE2, the circuit is in configuration B (standalone 2 wires bus configuration, see figure 14 page 19). The K pin is set as an output sending the demodulated data. The AM pin is set as a VSUP referenced input pin receiving the amplitude modulation and the shutdown/wake-up commands ...

Page 13

... Freescale Semiconductor, Inc. DIRECT CONNECTION TO A MICROCONTROLLER CONFIGURATION When a high level is applied on MODE1, the circuit is in configuration C (direct connection to a microcontroller configuration, see figure 15 page 19). The demodulated data are sent through DOUT. The AM pin is set as a VDD referenced input pin receiving the AM command. Forcing high and ...

Page 14

... Freescale Semiconductor, Inc. ELECTRICAL CHARACTERISTICS Typical values reflect average measurements at V SUPPLY CURRENT 6V ≤ V ≤ 16V 0V, T SUP SS J Parameter Pin VSUP 9.1 Standby mode current 9.2 Operating mode current 1. Circuit in configuration C, no current sunk from VDD, drivers TD1/2 switched off, Tx forced to low. ...

Page 15

... Freescale Semiconductor, Inc. LOW VOLTAGE RESET 6V ≤ V ≤ 16V 0V, T SUP SS J Parameter Pin LVR 1.6 Low Voltage Reset Low Threshold 1.7 Low Voltage Reset Hysteresis 1.12 Pull-up Current 1.13 Output Resistance in reset condition 1.14 Input Low Voltage 1.15 Input High Voltage 1. As the voltage regulator and the low voltage reset are using the same internal voltage reference ensured that the low voltage reset will only occur when the voltage regulator is out of regulation ...

Page 16

... Freescale Semiconductor, Inc. TAG READER 6V ≤ V ≤ 16V 0V, T SUP SS J Parameter DEMODULATOR (pin RD) 2.0 Input Voltage Range 2.2 Input Modulation Frequency 2.3 Demodulator Sensitivity 2.31 Demodulator Sensitivity 2.4 Demodulation Delay 2.5 After Write Pulse Settling Time Recovery Time after wake-up or reset 2.6 from clock stable to demodulator valid ...

Page 17

... Freescale Semiconductor, Inc. ISO 9141 INTERFACE 6V ≤ V ≤ 16V 0V –40°C to +125°C, unless otherwise noted SUP SS J Parameter Receiver (pins K & AM) 4.0 Input Low Voltage 4.1 Input High Voltage 4.2 Input Hysteresis Voltage 4.3 Biasing Current 4.31 Input Current 4 delay Driver (pin K) 5.0 Output Falling Edge Slew Rate 5 ...

Page 18

... Freescale Semiconductor, Inc. APPLICATION SCHEMES Figure 13 : Standalone configuration with one wire bus VBAT GATE NC SOURCE VDD µ VSS VSS R A TD1 TD2 CEXT C EXT 10nF AGND external MOS transistor is necessary to increase the voltage regulator current capability, the pins GATE and SOURCE must be left unconnected ...

Page 19

... Freescale Semiconductor, Inc. Figure 14 : Standalone configuration with two wires bus VBAT GATE NC SOURCE VDD µ VSS VSS R A TD1 TD2 CEXT C 10nF EXT AGND external MOS transistor is necessary to increase the voltage regulator current capability, the pins GATE and SOURCE must be left unconnected ...

Page 20

... Freescale Semiconductor, Inc. Figure 15 : Direct connection to a microcontroller VBAT GATE NC To microcontroller SOURCE power supply pin VDD VSS VSS R A TD1 TD2 CEXT C 10nF EXT AGND To microcontroller Tx port external MOS transistor is necessary to increase the voltage regulator current capability, the pins GATE and SOURCE must be left unconnected ...

Page 21

... Freescale Semiconductor, Inc. MOTOROLA SEMICONDUCTORS PRODUCTS © Motorola, Inc., 2002. For More Information On This Product, MC33690 Notes 21 Go to: www.freescale.com revision 4.8, 5 February 2002 ...

Page 22

... Freescale Semiconductor, Inc. MOTOROLA SEMICONDUCTORS PRODUCTS © Motorola, Inc., 2002. For More Information On This Product, MC33690 Notes 22 Go to: www.freescale.com revision 4.8, 5 February 2002 ...

Page 23

... Freescale Semiconductor, Inc. MOTOROLA SEMICONDUCTORS PRODUCTS © Motorola, Inc., 2002. For More Information On This Product, MC33690 Notes 23 Go to: www.freescale.com revision 4.8, 5 February 2002 ...

Page 24

... Freescale Semiconductor, Inc. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...