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CLRC632 Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. CLRC632
Description  Multiple Protocol Contactless Reader IC
Download  163 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

CLRC632 Datasheet(HTML) 4 Page - NXP Semiconductors

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Philips Semiconductors
Product Specification Rev. 3.0; May 2003
Multiple Protocol Contactless Reader IC
CL RC632
4
Confidential
10.3
Stand By Mode....................................................................................................................................94
10.4
Receiver Power Down.........................................................................................................................94
11
START UP PHASE .............................................................................................................................95
11.1
Hard Power Down Phase ....................................................................................................................95
11.2
Reset Phase........................................................................................................................................95
11.3
Initialising Phase .................................................................................................................................95
11.4
Initialising the Parallel Interface-Type .................................................................................................96
12
OSCILLATOR CIRCUITRY ................................................................................................................97
13
TRANSMITTER PINS TX1 AND TX2 .................................................................................................98
13.1
Configuration of TX1 and TX2.............................................................................................................98
13.2
Operating Distance versus Power Consumption ................................................................................99
13.3
Antenna Driver Output Source Resistance .........................................................................................99
13.3.1 Source Resistance Table ..................................................................................................................100
13.3.2 Formula for the Source Resistance...................................................................................................101
13.3.3 Calculating the Effective Source Resistance ....................................................................................101
13.4
Pulse Width .......................................................................................................................................102
14
RECEIVER CIRCUITRY ...................................................................................................................103
14.1
General..............................................................................................................................................103
14.2
Block Diagram ...................................................................................................................................103
14.3
Putting the Receiver into Operation ..................................................................................................104
14.3.1 Automatic Clock-Q Calibration ..........................................................................................................104
14.3.2 Amplifier.............................................................................................................................................105
14.3.3 Correlation Circuitry...........................................................................................................................106
14.3.4 Evaluation and Digitizer Circuitry ......................................................................................................106
15
SERIAL SIGNAL SWITCH ...............................................................................................................107
15.1
General..............................................................................................................................................107
15.2
Block Diagram ...................................................................................................................................107
15.3
Registers Relevant for the Serial Signal Switch................................................................................108
15.3.1 Active Antenna Concept....................................................................................................................109
15.3.2 Driving Two RF-Parts ........................................................................................................................109
16
MIFARE
® HIGHER BAUDRATES ....................................................................................................110
17
ISO14443 B.......................................................................................................................................111
18
CL RC632 COMMAND SET .............................................................................................................112
18.1
General Description...........................................................................................................................112
18.2
General Behaviour ............................................................................................................................112
18.3
CL RC632 Commands Overview ......................................................................................................112
18.3.1 Basic States ......................................................................................................................................114
18.3.2 StartUp Command 3Fhex....................................................................................................................114


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