Infineon FingerTIP FTF 1100 MF1 Manual
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Infineon FingerTIP FTF 1100 MF1 Manual

Infineon FingerTIP FTF 1100 MF1 Manual

Cmos chip and system
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Microsystems for Biometrics
FingerTIP™
FTF 1100 MF1 V2.0
CMOS Chip and System
Data Book 3.3
This document contains information on a new product. Details are subject to change
without notice.
(Status: 05.00)

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Summary of Contents for Infineon FingerTIP FTF 1100 MF1

  • Page 1 Microsystems for Biometrics FingerTIP™ FTF 1100 MF1 V2.0 CMOS Chip and System Data Book 3.3 (Status: 05.00) This document contains information on a new product. Details are subject to change without notice.
  • Page 2 The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. For questions on technology, delivery, and prices please contact Infineon Technologies Group Offices in Germany or the Infineon Technologies Representatives world-wide (see address list).

  • Page 3: Table Of Contents

    3.10Recommended Electrical Connection of the FingerTIP™ in EPP Mode THE SERIAL INTERFACE SPI 4.1 Basic Information on the Serial Interface SPI 4.2 Pin Description of the SPI Interface 4.2.1 EPP/SPI 3/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 4 5.1 FingerTIP™ Electrical Characteristics 5.2 Static Pad Characteristics 5.3 Pin Description MODULE 6.1 Module Dimensions and Material FINGERTIP™ SDK SOFTWARE AND BIOMETRIC ALGORITHMS 36 7.1 Enrollment 7.2 Verification LITERATURE INDEX 4/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 5: Introduction

    Chapter 5 outlines the electrical characteristics. The module dimensions are shown in chapter 6. The last chapter contains general information on the SDK software package for fingerprint recognition available from Infineon Technologies. 1.1 Validity of the Manual This FingerTIP™...

  • Page 6: Overview

    With the Infineon FingerTIP™ SDK running on an 400MHz PC this time is usually less than 500ms. This value is guaranteed only for the FingerTIP™ module if the notes of the Design-In Guideline are observed.

  • Page 7: Functional Block Diagram Of The Fingertip

    1. pixel of 1. line select EPP or SPI output EPP/SPI /RESET /REQUEST READY SI (EPP) (EPP) (EPP) (SPI) (SPI) (SPI) Figure 1: Functional Block Diagram FingerTIP™ 7/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 8: Dynamics Of The Sensor

    (figure 3). frequency of occurrence Dynamics of the Sensor air line water line (finger valley) (finger ridge) Figure 3: Schematic Histogram of the FingerTIP™ 8/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 9 V ref usable gray levels V ref usable gray levels 5.0 V 3.6 V approx. 70 2.5 V approx. 40 Table 1: Reference Voltages and the Resulting Values for Dynamics 9/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 10: Fingerprint Image Readout

    3 and 4. It is recommended to check the LineEndMark after every line read. Chapters 3 and 4 gives some hints for a failure analysis. 10/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 11: Sleep Mode

    Usually all biometric software including our FingerTIP™ Software Package can handle line and column defects of captured fingerprints. Up to three line or column defects and up to 50 single pixel defects are allowed in the cell field of the FingerTIP™. 11/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 12: The Parallel Interface Epp

    More background information on the EPP parallel port protocol can be found, for example, in the book Parallel Port Complete /3/ 12/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 13: Epp Register Definitions

    Pin No. Sensor SPP Signal Pin No. EPP Port /RESET nInit /REQUEST nAutoLF READY Busy DA0-DA7 9-16 D1-D8 2,19 Ground 18-25 Table 3: Pin Connection Between the FingerTIP™ and the Printer Port 13/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 14: Timing Of The Epp 1.9 Protocol Used By The Fingertip

    I/O_Line Input Rise/Fall Time 0.05 V/ns 0.50 V/ns 0.80 V/ns @ C = 50 pF I/O_Line Table 4: Timing Parameters; Typical Values for 1MHz EPP Clock Frequency (V = 5V) 14/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 15: Selecting The Epp Mode

    Sensor in Sleep Mode Sensor in Readout Mode /RESET = 2 µs Figure 8: Set the Sensor to Sleep Mode 15/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 16: Fingerprint Image Readout

    ´high´ Read line 225 bytes LineEndMark Read 288 lines? STOP Read Store image set ´sleep mode´ new image? store image Figure 9: Block Diagram for Image Readout in EPP Mode 16/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 17: Pinout Of The Fingertip™ In Epp Mode

    EPP or SPI. Chapter 5 gives a complete overview of the pins for EPP and SPI mode. The pad characteristics are also shown in chapter 5. Module Figure 10: Pinout of the FingerTIP™ Module 17/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 18 Do not connect Not used Do not connect Signal Ground Supply voltage Prot. GND Protective Ground * using a 22K pull-up resistor Table 5: Module Pin Description for EPP 1.9 Mode 18/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 19: Recommended Electrical Connection Of The Fingertip™ In Epp Mode

    1 and 21 (protective ground) with a dedicated line. Never connect the signal ground to protective ground on sensor side. This connection configuration of the shield is required for optimal ESD protection. 19/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 20: The Serial Interface Spi

    8-bit with LSB first. The SPI interface is implemented as a 3-line bus consisting of input, output and clock signals plus a chip-select line. This allows Multi-Master and Slave operation with bus-compliant systems. 20/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

  • Page 21: Pin Description Of The Spi Interface

    The Serial Input (SI) is used to receive data from the master. The data will be accepted with the rising edge of the clock. The data format is 8-bit, starting with the LSB. 21/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 22 The Serial Clock (SCK) synchronizes data transfer between the master and the FingerTIP™. Before the sensor can be selected, the Serial Clock (SCK) must be low for a minimum of t (see table 7). Otherwise the sensor will not be selected. 22/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 23 LSB OUT (Sensor) Receive Response (Master) (Master) tristate tristate LSB OUT MSB OUT (Sensor) MSB IN (Master) Figure 11: SPI Protocol and Timing: (a) Send a Command (b) Receive the Response 23/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 24 Output Setup Time Output Hold Time Output Rise Time Output Fall Time Power-On Reset Time µs = 50 pF I/O_Line Table 7: Timing Figures for the SPI ‘3-line bus’ Protocol 24/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 25 0: Image data not valid 1: Image data valid 0: Low dynamics selected 1: High dynamics selected 4, 5, 6, 7 (MSB) Reserved for internal use Table 9: Contents of the Response (Status Byte) 25/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 26 (table 9). Command: Reset Pointer Echo: Status Byte tristate tristate Dyn. don´t care Figure 13: SPI Command Reset Pointer and its Response 26/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 27 A low-to-high transition on the /CS line is sufficient to interrupt the data transfer. Command: Read Data Echo: Status Byte tristate Data Data Data Dyn. don´t care 2. Data Byte 1. Data Byte Figure 15: SPI Command Read Data 27/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 28 Read line (225 bytes) LineEndMark Read 288 lines? STOP Read Store image set ´sleep mode´ new image? store image Figure 16: Block Diagram for Readout of the Image in SPI Mode 28/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 29 SPI. Chapter 5 gives a complete overview of the pins for EPP and SPI mode. The pad characteristics are also shown in chapter 5. Module Figure 17: Pinout of the FingerTIP™ Sensor Module 29/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 30 Do not connect Not used Do not connect Signal Ground Supply voltage Prot. GND Protective Ground * using a 22K pull-up resistor Table 12: Module Pin Description for SPI Mode 30/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 31 At the micro-controller side of the cable, the shield must be connected to protective ground. It is critical to isolate the sensor protective ground from the device power ground for optimum ESD performance. 31/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 32 (HBM) Output driver and line I/O_Line capacitance ° C Operating temperature T - 40 + 85 ° C Storage temperature - 40 + 125 Table 13: General FingerTIP™ Electrical Characteristics 32/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 33 The pads are designed for low power consumption. Therefore the output current is limited to values lower than those specified in the EPP 1.9 specification. Table 14: Static Characteristics 33/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 34 No function (tristate) Not used Do not connect Not used Do not connect Signal Ground Supply voltage Prot. GND Protective Ground * using a 22K pull-up resistor Table 15: Pin Description 34/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 35 The 21 pin connector with 0.5 mm pitch is available from Molex, part name 52435-2191 (FPC connector), or from JST, part name 21FLZ-SM1-TB. Figure 18: Module Dimensions, Top and Side View 35/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 36 For detailed information on the software structure and its functionality refer to the Infineon documentation: FingerTIP™ Software Package User’s Guide /4/ and FingerTIP™ Software Package Programmer’s Guide /5/.
  • Page 37 /2/ Electrical Design in Guide of the FingerTIP™ /3/ Parallel Port Complete by Jan Alexson, published by Lakeview Research 1997 /4/ FingerTIP™ Software Package User’s Guide /5/ FingerTIP™ Software Package Programmer’s Guide. 37/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)
  • Page 38 IEEE 1284 standard 12 SPI protocol 23 lifetime 6 SPI readout 28 line 10 SPI timing 21, 26 LineEndMark 10, 17, 29 status byte 27 module 6, 35 water line 8, 9 38/38 Infineon Technologies FTF 1100 MF1 V2.0 databook 3.3 (05.00)

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