Datasheet HTRC11001T Datasheet (Philips)

Page 1
INTEGRATED CIRCUITS
DATA SH EET
HTRC11001T
HITAG reader chip
Product specification Supersedes data of 1999 Jan 01 File under Integrated Circuits, IC11
2001 Nov 23
Page 2
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T
CONTENTS
1 FEATURES 2 APPLICATIONS 3 GENERAL DESCRIPTION 4 QUICK REFERENCE DATA 5 ORDERING INFORMATION 6 BLOCK DIAGRAM 7 PINNING 8 FUNCTIONAL DESCRIPTION
8.1 Power supply
8.2 Antenna drivers
8.3 Diagnosis
8.4 Oscillator with programmable divider
8.5 Adaptive sampling time demodulator
8.6 Idle and Power-down mode
8.7 Serial interface
8.7.1 Communication protocol
8.7.2 Glitch filter
8.8 Commands
8.8.1 Command READ_TAG
8.8.2 Command WRITE_TAG_N
8.8.3 Command WRITE_TAG
8.8.4 Command READ_PHASE
8.8.5 Command SET_SAMPLING_TIME
8.8.6 Command GET_SAMPLING_TIME
8.8.7 Command SET_CONFIG_PAGE
8.8.8 Command GET_CONFIG_PAGE 9 LIMITING VALUES 10 DC CHARACTERISTICS 11 AC CHARACTERISTICS 12 APPLICATION INFORMATION
13 PACKAGE OUTLINE 14 SOLDERING
14.1 Introduction to soldering surface mount packages
14.2 Reflow soldering
14.3 Wave soldering
14.4 Manual soldering
14.5 Suitability of surface mount IC packages for wave and reflow soldering methods
15 DATA SHEET STATUS 16 DEFINITIONS 17 DISCLAIMERS
Page 3
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

1 FEATURES

Combines all analog RFID reader hardware in one single chip
Optimized for HITAG transponder family
Robust antenna coil power driver stage with modulator
High performance adaptive sampling time AM/PM
demodulator (patent pending)
Read and write function
On-chip clock oscillator
Antenna rupture and short circuit detection
Low power consumption
Very low power standby mode
Low external component count
Small package SO14.

2 APPLICATIONS

RFID systems.

3 GENERAL DESCRIPTION

(1)
HITAG
is the family name of the reader chip HTRC11001T to use with transponders which are based on the HITAG tag ICs (HT1ICS3002x or HT2ICS2002x).
The receiver parameters (gain factors and filter cut-off frequencies) can beoptimized to system and transponder requirements. The HTRC11001T is designed for easy integration into RF identification readers.
State-of-the-art technology allows almost complete integration of the necessary building blocks. A powerful antennademodulator and driver, together witha low-noise adaptive sampling time demodulator, a programmable filter, amplifier and digitizer, build the complete transceiver unit, required to design high-performance readers.
A three-pin microcontroller interface is employed for programming the HTRC11001T as well as for the bidirectional communication with the transponders. The three-wire interface can be changed into a two-wire interface by connecting the data input and the data output.
Tolerance dependent zero amplitude modulation will cause severe problems in envelope detector systems, resulting in the need of very low tolerance reader antennas.TheseproblemsaresolvedbythenewAdaptive Sampling Time (AST) technique.
(1) HITAG - is a trademark of Philips Semiconductors
Gratkorn GmbH.

4 QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
DD
f
clk
f
res
I
ant(p)
T
amb
supply voltage 4.5 5.0 5.5 V clock frequency programmable 4 16 MHz antenna resonant frequency 125 kHz antenna driver output current (peak value) continuous −−200 mA ambient temperature 40 +85 °C

5 ORDERING INFORMATION

PACKAGE
TYPE NUMBER
NAME DESCRIPTION VERSION
HTRC11001T SO14 plastic small outlet package; 14 leads; body width 3.9 mm SOT108-1
Page 4
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

6 BLOCK DIAGRAM

handbook, full pagewidth
TX1 TX2
RX
4 2
14
SYNCHRONOUS DEMODULATOR
MEASUREMENT
V
DD
3
ANTENNA
DRIVERS
PHASE
13 12 11
MODULATOR
BANDPASS FILTER
AMPLIFIER
DYNAMIC CONTROL
DIGITIZER
V
SS
CONTROL
UNIT
CONTROL
REGISTER
1
MODE
Fig.1 Block diagram.
OSCILLATOR
SERIAL
INTERFACE
HTRC11001T
5
n.c.CEXTQGND
10
MGW265
6
XTAL1
7
XTAL2
8
SCLK
9
DIN DOUT
Page 5
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

7 PINNING

SYMBOL PIN DESCRIPTION
V
SS
TX2 2 antenna driver output 2 V
DD
TX1 4 antenna driver output 1 MODE 5 control input to enable filtering of serial clock and data input; for active antenna applications XTAL1 6 oscillator input 1 XTAL2 7 oscillator input 2 SCLK 8 serial clock input of microcontroller interface DIN 9 serial data input of microcontroller interface DOUT 10 serial data output of microcontroller interface n.c. 11 not connected CEXT 12 high-pass filter coupling capacitor connection QGND 13 internal analog virtual ground capacitor connection RX 14 demodulator input
1 ground supply
3 supply voltage (5 V stabilized)
handbook, halfpage
V
1
SS
TX2
2 3
V
DD
4
TX1 MODE XTAL1 XTAL2
HTRC11001T
5 6 7
Fig.2 Pin configuration.Fig.2 Pin configuration.
MGW266
14 13 12 11 10
9 8
RX QGND CEXT n.c. DOUT DIN SCLK
Page 6
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

8 FUNCTIONAL DESCRIPTION

8.1 Power supply

TheHTRC11001Tworkswithan external 5 V ±10% power supply at pin VDD. The maximum DC current is
10 mA + × I
2
-- -
π
ant(p)
= 137 mA.
For optimum performance, the power supply connection should be bypassed to ground with a 100 nF capacitor close to the chip.

8.2 Antenna drivers

The drivers deliver a square shaped voltage to the series resonant antenna circuit (see Fig.4). Due to the full bridge configuration of the drivers the output voltage V approximately 10 V, corresponding to V
ant(p)
=5V.
ant(p-p)
is
The current flowing through the antenna is sine shaped and the peak and RMS values are approximately:
V
4
I
ant(p)
I
ant(rms)
ant(p)
×=
--------------- -
-- -
π
R
ant
1
×=
I
-------
ant(p)
2

8.3 Diagnosis

In order to detect an antenna short-circuit or open-circuit the antenna tap voltage is monitored.
An antenna fail condition is reported in the status bit ANTFAIL (see Table 5) if the antenna tap voltage does not go more negative than the diagnosis level voltage (V
= 1.15 V). This condition is checked for every coil
diag
driver cycle.

8.5 Adaptive sampling time demodulator

The demodulator senses the absorption modulation applied by a transponder when inserted into the field. The signal is picked up at the antenna tap point between L
and Ca. It is divided by Rv and the internal resistor R
a
int
to a level on pin RX below 8 V (peak value) with respect to pin QGND (see Fig.4). Internally the signal is filtered with a second-order low-pass filter.
The antenna current and therefore the tap voltage is modulated by the transponder in amplitude and/or phase. This signal is fed into a synchronous demodulator recovering the baseband signal. The amplification and the bandpass filter edge frequencies of the demodulator can be adapted to different transponders via settings in the configuration pages (see Table 3).
The phase between the driver excitation signal and the antenna tap voltage depends on the antenna tuning. With optimum tuning, the phase of the antenna tap voltage is 90° off the antenna driver signal. Detuning of the antenna resonant circuit results in a change of this phase relationship. The built-in phase measurement unit allows the measurement of this phase relationship with a
resolution of . This can be used to
-----­64
1
360°× 5.625°=
compute a sampling time that compensates the detuning of the reader antenna.
The phase measurement procedure can be carried out:
Once before the first communication starts, if the position of the transponder does not change with respect to the reader antenna
During the communication (after sending the write pulses and before receiving the answer of the transponder), if the tag is moving.

8.4 Oscillator with programmable divider

Thecrystaloscillatoratpins XTAL1and XTAL2workswith either crystal or ceramic resonators. It delivers the input clock frequency of 4, 8, 12 or 16 MHz. The oscillator frequency is divided by a programmable divider (selection bits FSEL1 and FSEL0) to obtain the carrier frequency of 125 kHz (see Table 3).
Alternatively, an external clock signal (CMOS compatible) may connected to pin XTAL1. For example, this clock signal can be derived from the microcontroller clock.
Beforethesystemisswitched into WRITE_TAG mode, the demodulator has to be frozen. This is internally done by clamping the input of the filter amplifier unit to the level on pin QGND. Doing so avoids large transients in the amplifier and digitizer, which could affect settling times. In addition to the clamping, there exist other means in the HTRC11001T which allow further reduction of the settling times. All the parts of the circuitry which are associated with these functions are controlled by the bits FREEZE0, FREEZE1 and THRESET (see Table 2).
For more details concerning write timing, demodulator setting, power-up sequence, etc. please refer to the application note
the HITAG Read/Write IC HTRC110”
“AN 98080 Read/Write devices based on
.
Page 7
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

8.6 Idle and Power-down mode

The HTRC11001T can be switched into the Idle mode via setting bit PD = 1 and resetting bit PD_MODE = 0 (see Table 3). In this Idle mode, only the oscillator and a few other system components are active.
It is also possible to switch the HTRC11001T completely off. This is achieved by the Power-down mode (bit PD = 1 and bit PD_MODE = 1). Within this mode also the clock oscillator is switched off. This reduces the supply current of the HTRC11001T to less than 20 µA.

8.7 Serial interface

The communication between the HTRC11001T and the microcontroller is done via a 3-wire digital interface. The interface is operated by the following signals:
Clock pulse on pin SCLK
Data input on pin DIN
Data output on pin DOUT.
Pins SCLK and DIN are realized as Schmitt-trigger inputs. Pin DOUT is an open-drain output with an internal pull-up resistor.
All commands transmitted to the HTRC11001T serial interface start with the Most Significant Bit (MSB).
Input DIN and output DOUT are valid when pin SCLK is at HIGH level.
8.7.2 GLITCH FILTER
Connectingpin MODEtoVDDenablesdigitalfilteringofthe SCLK and the DIN input signals. This mode offers improved immunity against noise and interference (glitches) on these interface signals. It is intended to be used in the so called ‘active antenna applications’ where the microcontroller and the reader communicate via long signal lines (e.g. 1 meter).
In other applications pin MODE has to be connected to ground (pin VSS).
For a detailed description of this feature, refer to the application note
the HITAG Read/Write IC HTRC110”
“AN 98080 Read/Write devices based on
.
8.7.1 COMMUNICATION PROTOCOL Every communication between the HTRC11001T and the
microcontroller begins with an initialization of the serial interface. The interface initialization condition is a LOW-to-HIGH transition on pin DIN while pin SCLK is at HIGH level (see Fig.3).
handbook, full pagewidth
SCLK
DIN
DOUT
initialization
D7 D6 D1 D0
t
h
t
su
Fig.3 Serial interface communication protocol.
D7 D6 D1 D0
MGW268
Page 8
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

8.8 Commands Table 1 Summary of the HTRC11001T command set

COMMAND NAME
REMARK
MSB LSB
READ_TAG 1 1 1 −−−−−READ_TAG mode WRITE_TAG_N 0001N3N2N1N0WRITE_TAG mode with
pulse width programming WRITE_TAG 1 1 0 −−−−−WRITE_TAG mode READ_PHASE 00001000read command
0 0 D5 D4 D3 D2 D1 D0 response SET_SAMPLING_TIME 1 0 D5 D4 D3 D2 D1 D0 GET_SAMPLING_TIME 00000010read command
0 0 D5 D4 D3 D2 D1 D0 response SET_CONFIG_PAGE 0 1 P1 P0 D3 D2 D1 D0 4 × 4 configuration bits
available
GET_CONFIG_PAGE 000001P1P0read command
X3 X2 X1 X0 D3 D2 D1 D0 response
BIT 7 BIT 6 BIT5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
8.8.1 C
OMMAND READ_TAG
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Command bits 1 1 1 −−−−−
This command is used to read the demodulated bit stream from a transponder. After the assertion of the three command bits the HTRC11001T instantaneously switches to the READ_TAG mode and
transmits the demodulated, filtered and digitized data to the microcontroller. This data should be decoded by the microcontroller.
The READ_TAG mode is terminated by a LOW-to-HIGH transition on pin SCLK.
8.8.2 C
OMMAND WRITE_TAG_N
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Command bits 0001N3N2N1N0
This command is used to write data to a transponder. If bits N3 to N0 are set to 0000, the signal on pin DIN is transparently switched to the drivers. A HIGH level on pin DIN
corresponds to antenna drivers switched off and a LOW level corresponds to antenna drivers switched on. For any binary number N between 0001 and 1111, the drivers are switched off at the next positive transition on pin DIN.
This state is held for a time interval t = N × T
(for T0=8µs). This method relaxes the timing resolution requirements to
0
the microcontroller and to the software implementation while providing an exact, selectable write pulse timing. The WRITE_TAG mode is terminated immediately by a LOW- to-HIGH transition on pin SCLK.
Page 9
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T
8.8.3 COMMAND WRITE_TAG
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Command bits 1 1 0 −−−−−
This is the 3-bit short form of the previously described command WRITE_TAG_N. It allows to switch into the WRITE_TAG mode with a minimum communication time.
The behaviour of the WRITE_TAG command is identical to WRITE_TAG_N with two exceptions:
WRITE_TAG mode is entered after assertion of the third command bit
No N parameter is specified with this command; instead the N value which was programmed with the most recent
WRITE_TAG_N command is used. If no WRITE_TAG_N was issued so far, a default N = 0 (transparent mode) will be assumed.
8.8.4 C
Command bits 00001000 Response bits 0 0 D5 D4 D3 D2 D1 D0
This command is used to read the antenna phase, which is measured at every carrier cycle. The response bits D5 to D0 represent the phase (coded binary).
8.8.5 COMMAND SET_SAMPLING_TIME
Command bits 1 0 D5 D4 D3 D2 D1 D0
This command specifies the demodulator sampling time t
8.8.6 COMMAND GET_SAMPLING_TIME
Command bits 00000010 Response bits 0 0 D5 D4 D3 D2 D1 D0
This command is used to read back the sampling time ts set with SET_SAMPLING_TIME.
OMMAND READ_PHASE
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
. The sampling time is coded binary in bits D5 to D0.
s
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
The response bits D5 to D0 represent the sampling time (coded binary).
Page 10
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T
8.8.7 COMMAND SET_CONFIG_PAGE
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Command 0 1 P1 P0 D3 D2 D1 D0
This command is used to set the filter and amplifier parameters (cut-off frequencies and gain factors) and to select the operation mode. Bits P1 and P0 select one of four configuration pages.
Table 2 Configuration page bit names
COMMAND
PAGE NUMBER
7 6 P1 P0 D3 D2 D1 D0
BIT
SET_CONFIG_PAGE 0 0 1 0 0 GAIN1 GAIN0 FILTERH FILTERL SET_CONFIG_PAGE 1 0 1 0 1 PD_MODE PD HYSTERESIS TXDIS SET_CONFIG_PAGE 2 0 1 1 0 THRESET ACQAMP FREEZE1 FREEZE0 SET_CONFIG_PAGE 3 0 1 1 1 DISLP1 DISSMART-
FSEL1 FSEL0
COMP
Table 3 Description of the configuration page bits
BIT NAME VALUE DESCRIPTION
INITIAL
VALUE
FILTERL main low-pass cut-off frequency
0f 1f
= 3 kHz 0
L
= 6 kHz
L
FILTERH main high-pass cut-off frequency
0f 1f
= 40 kHz 0
H
= 160 kHz
H
GAIN0 amplifier 0 gain factor
0 gain = 16 0 1 gain = 32
GAIN1 amplifier 1 gain factor
0 gain = 6.22 1 gain = 31.5 1
TXDIS disable coil driver
0 coil driver active 0 1 coil driver inactive
HYSTERESIS data comparator hysteresis
0 hysteresis OFF 0 1 hysteresis ON
PD Power-down mode enable
0 device active 0 1 device power-down
2001 Nov 23 10
Page 11
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T
BIT NAME VALUE DESCRIPTION
PD_MODE select Power-down mode
0 Idle mode 0 1 Power-down mode
FREEZE1, FREEZE0
ACQAMP store signal amplitude (see also bit AMPCOMP in Table 5)
THRESET reset threshold generation of digitizer
FSEL1, FSEL0 clock frequency selection (MSB and LSB)
DISSMART­COMP
DISLP1 disable low-pass 1
00 normal operation 00 01 main low-pass is frozen; main high-pass is pre-charged to level on pin QGND 10 main low-pass is frozen; time constant of main high-pass is reduced by a
11 main high-pass time constant is reduced by a factor of 16 for bit FILTERH = 0
00 4 MHz 00 01 8 MHz 10 12 MHz 11 16 MHz
facility to achieve fast settling times (MSB and LSB)
factor of 16 for bit FILTERH = 0 and by a factor of 8 for bit FILTERH = 1
and by a factor of 8 for bit FILTERH = 1; second high-pass is pre-charged
0 set status bit AMPCOMP when the actual data signal amplitude is higher than
the stored reference
1 store actual amplitude of the data signal as reference for later amplitude
comparison
0 no reset 0 1 reset
disable smart comparator 0 smart comparator: on 0 1 smart comparator: off
0 low-pass: on 0 1 low-pass: off
INITIAL
VALUE
0
2001 Nov 23 11
Page 12
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T
8.8.8 COMMAND GET_CONFIG_PAGE
?
NAME BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Command bits 000001P1P0 Response bits X3 X2 X1 X0 D3 D2 D1 D0
This command has three functions:
1. Reading back the configuration parameters set by command SET_CONFIG_PAGE
2. Reading back the transmit pulse width programmed with command WRITE_TAG_N
3. Reading the system status information. Bits P1 and P0 select one of four configuration pages. The response bits (X3 to X0 and D3 to D0) contains the contents of the selected configuration page in its lower nibble. For page 0 and page 1 the higher nibble reflects the current setting of the transmit pulse width N. For page 2 and page 3 the system status information is returned in the higher nibble.
Table 4 Configuration page bit names
COMMAND
PAGE NUMBER
X3 X2 X1 X0 3210
BIT
GET_CONFIG_PAGE 0 N3 N2 N1 N0 D3 D2 D1 D0 GET_CONFIG_PAGE 1 N3 N2 N1 N0 D3 D2 D1 D0 GET_CONFIG_PAGE 2 0 (RFU) 0 (RFU) AMPCOMP ANTFAIL D3 D2 D1 D0 GET_CONFIG_PAGE 3 0 (RFU) 0 (RFU) AMPCOMP ANTFAIL D3 D2 D1 D0
Table 5 Description of the configuration page bits
BIT NAME VALUE DESCRIPTION
D3 to D0 XXXX contents of the selected configuration page N3 to N0 XXXX current setting of the transmit pulse width ANTFAIL antenna failure
0 no antenna failure 1 antenna failure
AMPCOMP amplitude comparison result (see also bit ACQAMP in Table 3)
0 actual data signal amplitude is lower than the stored reference 1 actual data signal amplitude is higher than the stored reference
2001 Nov 23 12
Page 13
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

9 LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 60134); note 1.
SYMBOL PARAMETER MIN. MAX. UNIT
V
n
V
n(max)
V
RX
T
j(max)
T
stg
Note
1. Stress above one or more of the limiting values may cause permanent damage to the device. These are stresses ratings only and operation of the device at these or at any other conditions above those given in Chapter 10 not implied. Exposure or limiting values for extended periods may affect device reliability.

10 DC CHARACTERISTICS

All voltages are measured with respect to ground (pin VSS); T
voltage at any pin (except pinRX) 0.3 +6.5 V maximum voltage at any pin with respect to VDD (except pin RX) 0.3 VDD+ 0.3 V voltage at pin RX 10 +12 V maximum junction temperature 140 °C storage temperature 65 +125 °C
= 40 to +85 °C
amb
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supply
V
DD
I
DD
I
idle
I
pd
supply voltage 4.5 5.0 5.5 V supply current VDD= 5.5 V; I
TX1=ITX2
=0 410 mA idle current VDD= 5.5 V; note 1 0.2 0.4 mA power-down current VDD= 5.5 V 720 µA
Driver outputs (pins TX1 and TX2)
I
ant(p)
antennadriveroutputcurrent (peak value)
permanent −−200 mA pulse load; t
< 400 ms;
on
−−400 mA
ratio on : off = 1 : 4
R
o
output resistance both drivers together 2.5 7
Demodulator input (pin RX)
V
I
V
diag
input voltage with respect to pin QGND 8 +8 V diagnosis level voltage with respect to pin QGND;
1.5 1.15 0.8 V
VDD=5V
V
QGND
R
i
potential on pin QGND 0.35V internal demodulator
17 25 33 k
DD
0.42V
DD
0.50V
DD
V
impedance
Digital inputs
V
IH
V
IL
HIGH-level input voltage 0.7V LOW-level input voltage 0.3 0.3V
VDD+ 0.3 V V
DD
DD
V
Digital outputs
V
OL
I
OL
LOW-level output voltage I
OL(max)
LOW-level output current VOL≤ 0.4 V 1 −− mA
=1mA −−0.4 V
Note
1. Power consumption of external quartz or any other component is not included.
2001 Nov 23 13
Page 14
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

11 AC CHARACTERISTICS

T
= 40 to +85 °C.
amb
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Oscillator inputs (pins XTAL1 and XTAL2)
f
osc
oscillator frequency depending on bits FSEL1
and FSEL0
t
st
C
i
R
i
start-up time 410ms input capacitance on pin XTAL1 5 pF input resistance between pins XTAL1
and XTAL2
External clock input (pin XTAL1)
f
ext
external clock frequency depending on bits FSEL1
and FSEL0
δ duty cycle 40 60 %
Serial interface
t
su
t
h
set-up time pin MODE at V hold time pin MODE at V
SS SS
Receiver (pin RX)
V
RX(p-p)
t
d
sensitivity (peak-to-peak value) receiver input 2 1 mV receiver delay bit FILTERL = 0 290 310 340 µs
bit FILTERL = 1 160 175 190 µs
Demodulator valid time
t
rec
demodulator recovery time after clock stable; note 1 −−5ms
after WRITE-pulse; note 1 −−500 µs after AST-step 0.7 1.5 ms
ϕ phase measurement error −−±5.7 deg
4 16 MHz
0.9 1.3 3.0 M
4 16 MHz
50 −−ns 50 −−ns
Note
1. These short times require special command sequences. Please refer to the application note
devices based on the HITAG Read/Write IC HTRC110”
.
2001 Nov 23 14
“AN 98080 Read/Write
Page 15
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

12 APPLICATION INFORMATION

Figure 4 shows a minimal application circuitry for the HTRC11001T.
The reader coil La together with the capacitor Ca forms a series resonant LC circuit (f0= 125 kHz). The high voltages in the LC circuit are divided to safe operating levels by Rv and the internal resistor Ri behind pin RX.
The two capacitors connected to pin XTAL1 and pin XTAL2 shall be the recommended values and types from the data sheet of the crystal.
handbook, full pagewidth
V
DD
10 µF
100 nF
R
v
C
a
L
a
V
SS
TX2
V
DD
TX1 MODE XTAL1 XTAL2
1 2 3
HTRC11001T
4 5 6 7
Alternatively to a crystal, a ceramic resonator can be used or an external clock source can be connected to pin XTAL1.
RX
14
QGND
13
CEXT
12
n.c.
11
DOUT
10
DIN
9
SCLK
8
100 nF
100 nF
to microcontroller
Fig.4 Minimum application circuitry.
2001 Nov 23 15
MGW267
Page 16
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

13 PACKAGE OUTLINE

SO14: plastic small outline package; 14 leads; body width 3.9 mm

SOT108-1

y
Z
14
pin 1 index
1
D
c
8
A
2
A
1
7
e
w M
b
p
E
H
E
detail X
A
X
v M
A
Q
(A )
L
p
L
A
3
θ
0 2.5 5 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
mm
OUTLINE
VERSION
SOT108-1
A
max.
1.75
0.069
A
1
0.25
0.10
0.010
0.004
A2A
1.45
1.25
0.057
0.049
IEC JEDEC EIAJ
076E06 MS-012
0.25
0.01
b
3
p
0.49
0.25
0.36
0.19
0.019
0.0100
0.014
0.0075
UNIT
inches
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
(1)E(1)
cD
8.75
8.55
0.35
0.34
REFERENCES
4.0
3.8
0.16
0.15
1.27
0.050
2001 Nov 23 16
eHELLpQZywv θ
1.05
0.041
1.0
0.4
0.039
0.016
0.7
0.25
0.6
0.028
0.01 0.004
0.024
EUROPEAN
PROJECTION
0.25 0.1
0.01
6.2
5.8
0.244
0.228
(1)
0.7
0.3
0.028
0.012
ISSUE DATE
97-05-22 99-12-27
o
8
o
0
Page 17
Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

14 SOLDERING

14.1 Introduction to soldering surface mount packages
Thistextgivesavery brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our
“Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011). There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering can still be used for certainsurfacemountICs,butitisnotsuitableforfinepitch SMDs. In these situations reflow soldering is recommended.
14.2 Reflow soldering
Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied tothe printed-circuit board by screen printing, stencillingor pressure-syringe dispensing before package placement.
Several methods exist for reflowing; for example, convection or convection/infrared heating in a conveyor type oven. Throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method.
Typical reflow peak temperatures range from 215 to 250 °C. The top-surface temperature of the packages should preferable be kept below 220 °C for thick/large packages, and below 235 °C for small/thin packages.
14.3 Wave soldering
Conventional single wave soldering is not recommended forsurfacemountdevices(SMDs)orprinted-circuitboards with a high component density, as solder bridging and non-wetting can present major problems.
To overcome these problems the double-wave soldering method was specifically developed.
If wave soldering is used the following conditions must be observed for optimal results:
Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave.
For packages with leads on two sides and a pitch (e): – larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board;
– smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the printed-circuit board.
The footprint must incorporate solder thieves at the downstream end.
Forpackageswithleadsonfoursides,thefootprintmust be placed at a 45° angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners.
During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured.
Typical dwell time is 4 seconds at 250 °C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications.
14.4 Manual soldering
Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C.
When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C.
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Philips Semiconductors Product specification
HITAG reader chip HTRC11001T
14.5 Suitability of surface mount IC packages for wave and reflow soldering methods
PACKAGE
WAVE REFLOW
(1)
BGA, HBGA, LFBGA, SQFP, TFBGA not suitable suitable
SOLDERING METHOD
HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, HVQFN, SMS not suitable
(3)
PLCC
, SO, SOJ suitable suitable LQFP, QFP, TQFP not recommended SSOP, TSSOP, VSO not recommended
(2)
(3)(4) (5)
suitable
suitable suitable
Notes
1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the
“Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”
.
2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).
3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners.
4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
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Philips Semiconductors Product specification
HITAG reader chip HTRC11001T

15 DATA SHEET STATUS

PRODUCT
DATA SHEET STATUS
Objective data Development This data sheet contains data from the objective specification for product
Preliminary data Qualification This data sheet contains data from the preliminary specification.
Product data Production This data sheet contains data from the product specification. Philips
(1)
STATUS
(2)

DEFINITIONS

development. Philips Semiconductors reserves the right to change the specification in any manner without notice.
Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product.
Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A.
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
16 DEFINITIONS Short-form specification The data in a short-form
specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook.
Limiting values definition  Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device attheseorat any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information  Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make norepresentationorwarrantythatsuchapplicationswillbe suitable for the specified use without further testing or modification.

17 DISCLAIMERS Life support applications These products are not

designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury.Philips Semiconductorscustomersusingorsellingtheseproducts for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes  Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for theuseofanyoftheseproducts,conveysnolicenceortitle under any patent, copyright, or mask work right to these products,andmakes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
2001 Nov 23 19
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Philips Semiconductors – a w orldwide compan y
Contact information
For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
© Koninklijke Philips Electronics N.V. 2001 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands 613502/02/pp20 Date of release: 2001 Nov 23 Document order number: 9397750 08329
SCA73
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