Product Specification (Rev. 1.2) January 1999 Product Specificati

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HTRC110 Hitag Reader Chip
Product Specification (Rev. 1.2) January 1999
Product Specification
Hitag Reader Chip
CONTENTS 8.7.1 FEATURES GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM DATA PINNING INFORMATION Pinning Diagram Description MINIMUM APPLICATION CIRCUITRY FUNCTIONAL DESCRIPTION Power Supply Antenna Drivers, Data Input Diagnosis Oscillator Programmable Divider Clock Adaptive Sampling Time Demodulator Idle Power-down Mode Serial Interface Glitch Filter Increased Noise/Interference Immunity COMMANDS READ_TAG WRITE_TAG_N WRITE_TAG READ_PHASE SET_SAMPLING_TIME GET_SAMPLING_TIME SET_CONFIG_PAGE GET_CONFIG_PAGE ABSOLUTE MAXIMUM RATINGS CHARACTERISTICS CHARACTERISTICS PACKAGE DEFINITIONS LIFE SUPPORT APPLICATIONS
HTRC110
Rev. 1.2.
Product Specification
Hitag Reader Chip
HTRC110
FEATURES GENERAL DESCRIPTION Combines analogue RFID reader hardware single Hitag Reader Chip HTRC110 intended chip with transponders which based HITAG silicon (HT1ICS30 HT2ICS20 02x). (E.g. Optimized HITAG transponder family HITAG stick HT2DC20 operated with Robust antenna coil power driver stage with modulator Reader Chip). addition supports other 125kHz transponder types using amplitude High performance adaptive sampling time AM/PM lation write operation AM/PM read demodulator (patent pending) operation. receiver parameters (gain factors, filter Read write function cutoff frequencies) optimized system transponder requirements. HTRC110 designed On-chip clock oscillator easy integration into RF-identification readers. Antenna rupture short circuit detection State-of-the-art technology allows almost complete integration necessary building blocks. powerful power consumption antenna driver/modulator together with low-noise Very power stand-by mode adaptive sampling time demodulator, programmable filters/amplifier digitizer build complete external component count ceiver unit, required design high-performance Small package (SO14) readers. three-pin microcontroller interface employed programming HTRC110 well bidirectional communication with transponders. three-wire interface changed into two-wire interface connecting data input data output. Tolerance dependent zero amplitude modulation caused severe problems envelope detector systems, resulting need very tolerance reader antennas. These problems solved Adaptive Sampling Time technique (AST). ORDERING INFORMATION TYPE NAME HTRC110 01T/02EE HTRC110 01T/03EE DESCRIPTION Hitag Reader Tube Hitag Reader Reel ORDERING NUMBER 9352 91112 9352 92118
Rev. 1.2.
Product Specification
Hitag Reader Chip
BLOCK DIAGRAM
HTRC110
Antenna Drivers Control Unit Modulator Oscillator
XTAL1 XTAL2
Synchron Demodulator Bandpass Filter Amplifier Dynamic Control Digitizer Phase Measurement Serial Interface DOUT SCLK
Control Register
QGND
CEXT
MODE
Fig.1 Block diagram Hitag Reader Chip HTRC110
DATA ±10% 4,8,12,16 programmable (antenna carrier frequency kHz)
Supply Clock/Osc. frequency
Antenna driver current Serial interface Package Operation temperature range
continuous CMOS compatible SO14 -40°C +85°C
Rev. 1.2.
Product Specification
Hitag Reader Chip
PINNING INFORMATION Pinning Diagram
HTRC110
Description
Number
Symbol MODE XTAL1 XTAL2 SCLK DOUT n.c. CEXT QGND
Description GND, negative supply input Coil driver output Stabilized supply input Coil driver output enable filtering SCLK (for active antenna applications) Oscillator interface, input Oscillator interface, output Microcontroller interface: serial clock input Microcontroller interface: serial data Microcontroller interface: serial data connected High pass filter coupling Analog ground bias Demodulator input
Rev. 1.2.
Product Specification
Hitag Reader Chip
HTRC110
MINIMUM APPLICATION CIRCUITRY following figure shows minimal application circuitry HTRC110. reader coil together with capacitor forms series resonant circuit kHz). high voltages circuit divided safe operating levels chip internal resistor Rdem_in behind RX-pin. capacitors connected XTAL1 XTAL2 shall recommended values types from crystal's data sheet. Alternatively crystal ceramic resonator used external clock source connected XTAL1.
10µF 100nF
XTAL1
XTAL2
DOUT SCLK MICROPROCESSOR
QGND
CEXT
MODE
100nF
100nF
Fig.2 Minimum application circuitry
Rev. 1.2.
Product Specification
Hitag Reader Chip
FUNCTIONAL DESCRIPTION
HTRC110
antenna current therefore voltage modulated transponder amplitude and/or phase. This signal into synchronous demodulator recovering baseband signal. amplification bandpass filter edge frequencies demodulator adapted different transponders settings configuration pages. phase between driver excitation signal antenna voltage depends antenna tuning. With optimum tuning, phase antenna voltage degrees antenna driver signal. Detuning antenna resonant circuit results change this phase relationship. HTRC110`s built-in phase measurement unit allows measurement this phase relationship with resolution 360o/64=5.625o. This used compute sampling time that compensates mistuning reader antenna. phase measurement procedure carried either once before first communication starts, position transponder does change with respect reader antenna during communication (after sending write pulses before receiving answer transponder), moving. Before system switched into WRITE_TAG-mode, demodulator frozen. This internally done clamping input amplifier/filter unit QGND. Doing avoids large transients amplifier digitizer, which could affect settling times. addition clamping, there exist other means HTRC110 which allow further reduction settling times. parts circuitry, which associated with these functions, controlled FREEZE0, FREEZE1 THRESET bits, which located configuration page more details concerning WRITE Timing, Demodulator Setting, Power Sequence, etc. please refer HTRC110 application note. Idle Power-down Mode HTRC110 switched into idle mode setting PD-bit resetting PD_MODE-bit. this idle mode, only oscillator other system components active. also possible switch completely off. This achieved power-down mode (PD=1, PD_MODE=1). Within this mode also clock oscillator switched off. This reduces supply current HTRC110 less than 20µA.
Power Supply HTRC110 works with external 5V±10% power supply VDD. maximum DC-current 137mA. optimum performance, power supply connection should bypassed ground with 100nF capacitor close
Antenna Drivers, Data Input drivers deliver square shaped voltage series resonant antenna circuit. full bridge configuration drivers this voltage Udrvpp approximately (peak-peak) corresponding current flowing through antenna sine shaped. amplitude approximately:
^ant
^ant
Diagnosis order detect antenna short open condition antenna voltage monitored. antenna fail condition reported status ANTFAIL (see Table 14), antenna voltage does more negative than diagnosis level DLEV (see Table 16). This condition checked every coil driver cycle. Oscillator Programmable Divider Clock crystal oscillator XTAL1/2 works with either crystal ceramic resonators. delivers input clock frequency 4,8,12 MHz. oscillator frequency divided programmable divider obtain carrier frequency (see Table 10). Alternatively, external clock signal (CMOS compatible) into XTAL1. example, this signal derived from microcontroller clock. Adaptive Sampling Time Demodulator demodulator senses absorption modulation applied transponder when inserted into field. signal picked antenna point between divided internal resistor Rdem_in level below (peak) with respect QGND RX-pin (see Fig.2). Internally signal filtered with second order pass filter.
Rev. 1.2.
Product Specification
Hitag Reader Chip
HTRC110
Serial Interface communication between HTRC110 microcontroller done three wire digital interface. interface operated following signals: SCLK DOUT Clock Data Input Data Output
SCLK realized Schmitt-Trigger inputs. DOUT open drain output with internal pullup resistor. Every communication between HTRC110 microcontroller begins with initialization serial interface. interface initialization condition low-to-high transition signal while SCLK high.
SCLK
initialization
DOUT
commands transmitted HTRC110 serial interface starting with Most Significant (MSB). DOUT valid when SCLK high.
8.7.1
Glitch Filter Increased Noise/Interference Immunity
Connecting (MODE) enables digital filtering SCLK input signals. This mode offers improved immunity against glitches these interface signals. intended used called "Active Antenna Applications" where microcontroller reader communicate long signal lines (e.g. meter). other applications (MODE) connected GND. Please refer HTRC110 application note detailed description this feature.
Rev. 1.2.
Product Specification
Hitag Reader Chip
COMMANDS Table depicts HTRC110 command summary. Table Command Name GET_SAMPLING_TIME GET_CONFIG_PAGE READ_PHASE READ_TAG WRITE_TAG_N WRITE_TAG SET_CONFIG_PAGE SET_SAMPLING_TIME READ_TAG
HTRC110
Remark resp. D5-D0) resp. (X3-X0 D3-D0) resp. READ_TAG-mode WRITE_TAG-mode with pulse width programming WRITE_TAG-mode config bits available
This command used read demodulated stream from transponder: After assertion three command bits HTRC110 instantaneously switches READ_TAG-mode transmits demodulated, filtered digitized data from transponder. Data comes should decoded microcontroller. READ_TAG-mode terminated high transition SCLK. Table Command Remark received data available DOUT
WRITE_TAG_N This command used write data transponder. N3-N0 zero, signal from transparently switched drivers. high level corresponds antenna drivers switched off, level corresponds antenna drivers switched binary number between 1111 loaded into N3-N0 drivers switched next positive transition DIN. This state held time interval equal (T0=8µs). This method relaxes timing resolution requirements microcontroller software implementation while providing exact, selectable write pulse timing. WRITE_TAG-mode terminated immediately high transition SCLK. Table Command Remark response
WRITE_TAG This short form previously described command WRITE_TAG_N. allows switch into WRITE_TAG-mode with minimum communication time.
Rev. 1.2.
Product Specification
Hitag Reader Chip
behaviour WRITE_TAG command identical WRITE_TAG_N with exceptions:
HTRC110
WRITE_TAG-mode entered after assertion command bit. parameter specified with this command; instead value which programmed with most recent WRITE_TAG_N command used. WRITE_TAG_N issued far, default (transparent mode) will assumed. Table Command Remark response
READ_PHASE This command used read phase, which measured every carrier cycle. phase coded binary D5-D0. Table Command Response Remark
SET_SAMPLING_TIME
This command specifies demodulator sampling time sampling time coded binary D5-D0. Table Command Remark response
GET_SAMPLING_TIME
This command used read back sampling time with SET_SAMPLING_TIME. sampling time coded binary D5-D0. Table Command Response Remark
Rev. 1.2.
Product Specification
Hitag Reader Chip
SET_CONFIG_PAGE
HTRC110
This command used amplifier filter parameters (cutoff frequencies, gain factors) different operation modes. select four configuration pages. Table Command Remark response
Table Command/Page SET_CONFIG_PAGE SET_CONFIG_PAGE SET_CONFIG_PAGE SET_CONFIG_PAGE GAIN1 PD_MODE THRESET DISLP1 GAIN0 ACQAMP DISSMARTCOMP FILTERH HYSTERESIS FREEZE1 FSEL1 FILTERL TXDIS FREEZE0 FSEL0
Table name FILTERL FILTERH GAIN0 GAIN1 TXDIS HYSTERESIS PD_MODE FREEZE0 FREEZE1 ACQAMP THRESET FSEL0 FSEL1 DISSMARTCOMP DISLP1 Description main pass cutoff frequency main high pass cutoff frequency amplifier_0 gain factor amplifier_1 gain factor disable coil driver data comparator hysteresis power down mode enable select power down mode facility achieve fast settling times facility achieve fast settling times store signal amplitude reference later amplitude comparison reset threshold generation digitizer clock frequency select clock frequency select disable smart comparator disable pass Initial condition 4MHz, 12MHz 8MHz, 16MHz smart comparator smart comparator pass pass gain0 gain0 gain1 6.22; gain1 31.5 coil driver active coil driver inactive hysteresis hysteresis device active device power down idle mode power down table table status AMPCOMP
Rev. 1.2.
Product Specification
Hitag Reader Chip
Table Freeze Description
HTRC110
FREEZE1 FREEZE0 Meaning normal operation main pass frozen; main high pass precharged QGND main pass frozen; time constant main high pass reduced factor FILTERH=0 factor FILTERH=1 time constant main high pass reduced factor FILTERH=0 factor FILTERH=1; second high pass precharged
GET_CONFIG_PAGE This command three functions: Reading back configuration parameters SET_CONFIG_PAGE command Reading back transmit pulse width programmed with WRITE_TAG_N Reading system status information select four configuration pages. response contains contents selected configuration page lower nibble. higher nibble reflects current setting (the transmit pulse width). system status information returned higher nibble. Table Command Response Remark
Table Command/Page GET_CONFIG_PAGE GET_CONFIG_PAGE GET_CONFIG_PAGE GET_CONFIG_PAGE (RFU) (RFU) (RFU) (RFU) AMPCOMP AMPCOMP ANTFAIL ANTFAIL
Table Status Description name ANTFAIL AMPCOMP Meaning antenna failure amplitude comparison result antenna antenna failure When ACQAMP set, actual amplitude data signal stored reference. After resetting ACQAMP status AMPCOMP when actual data signal amplitude higher than stored reference.
Rev. 1.2.
Product Specification
Hitag Reader Chip
HTRC110
ABSOLUTE MAXIMUM RATINGS Table lists limiting values. Stress above more limiting values cause permanent damage device. These stress ratings only operation device these other conditions above those given characteristics sections this specification implied. Exposure limiting values extended periods affect device reliability. Table Parameter Voltage except Voltage except Voltage Maximum junction temperature Storage temperature range Symbol Min. -0.3 -0.3 Max. +6.5 VDD+0.3 +125 Unit
Tstore
Rev. 1.2.
Product Specification
Hitag Reader Chip
CHARACTERISTICS Table lists characteristics. voltages measured Vss, Tamb -40°C +85°C. Table Parameter Supply voltage Operating supply current Idle current(1) Power down current Drivers (TX1, TX2) Output peak-current Output peak-current Output resistance Demodulator Input Voltage range QGND Potential Impedance Diagnosis Level (DLEV) with respect QGND, VDD=5V Digital Inputs Data input high voltage Data input voltage Digital Outputs Output Output drive capability
HTRC110
Conditions
VDD=5.5V, ITX1=ITX2=0 VDD=5.5V VDD=5.5V permanent On/off-ratio <400ms both drivers together with respect QGND
Symbol Supply Iant IantPulse
Min.
Typ.
Max.
Unit
0.35 -1.5 0.42 -1.15
-0.8
Rdem_in DLEV
+1mA 0.4V
VDD+0.3
Power consumption external quartz other external component included
Rev. 1.2.
Product Specification
Hitag Reader Chip
CHARACTERISTICS Table lists characteristics. Tamb -40°C +85°C. Table Parameter Conditions Symbol XTAL Oscillator (XTAL1/XTAL2) depending FSEL fosc Min. Typ.
HTRC110
Max.
Unit
Frequency range Start-up time Input capacitance XTAL1 Input resistance XTAL1 XTAL External Clock (XTAL1) Frequency range depending FSEL Duty cycle Serial Interface Setup time MODE Hold time MODE Receiver Sensitivity input Receiver delay FILTERL=0 Receiver delay FILTERL=1 Recovery from Clock Stable Demodulator Valid Recovery time demodulator(1) Recovery from WRITE-pulse Recovery demodulator(1) Recovery from AST-step Recovery demodulator Phase measurement error
TRCV0 TRCV1 TRPD TRWD TRAST
mVpp
±5.7
These short times require special command sequences. Please refer application note AN97070 Read/Write Devices based HITAG Read/Write HTRC110.
Rev. 1.2.
Product Specification
Hitag Reader Chip
PACKAGE
HTRC110
Rev. 1.2.
Product Specification
Hitag Reader Chip
DEFINITIONS Amplitudes sine shaped signals: Peak-to-peak arbitrary shaped signals: Zero-to peak arbitrary shaped signals: Data sheet status Objective specification Preliminary specification Product specification Limiting values
HTRC110
This data sheet contains target goal specifications product development. This data sheet contains preliminary data; supplementary data published later. This data sheet contains final product specifications.
Limiting values given accordance with Absolute Maximum Rating System (IEC 134). Stress above more limiting values cause permanent damage device. These stress ratings only operation device these other conditions above those given Characteristics sections specification implied. Exposure limiting values extended periods affect device reliability. Application information Where application information given, advisory does form part specification. LIFE SUPPORT APPLICATIONS These products designed life support appliances, devices, systems where malfunction these products reasonably expected result personal injury. Philips customers using selling these products such applications their risk agree fully indemnify Philips damages resulting from such improper sale.
Rev. 1.2.
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Internet:
Philips Electronics N.V. 1997
SCA55
rights reserved. Reproduction whole part prohibited without prior written consent copyright owner. information presented this document does form part quotation contract, believed accurate reliable changed without notice. liability will accepted publisher consequence use. Publication thereof does convey imply license under patent- other industrial intellectual property rights.

Product Specification (Rev. 1.2) January 1999 Product Specificati

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