CLRC63201TSLASH0FE datasheet(147/163 Pages) PHILIPS

Il numero della parte	CLRC63201T/0FE

Spiegazioni elettronici	Multiple Protocol Contactless Reader IC

PDF	163 Pages

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Produttore elettronici	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

147

Confidential

21.5 Examples of ISO14443A Analog- and Digital Test Signals

Fig. 22 shows a MIFARE Classic Card’s answer to a request command using the Qclock receiving path.

RX –Reference is given to show the Manchester modulated signal at the RX pin. This signal is demodulated

and amplified in the receiver circuitry VRXAmpQ shows the amplified side band signal having used the Q-

Clock for demodulation. The signals VCorrDQ and VCorrNQ generated in the correlation circuitry are

evaluated and digitised in the evaluation and digitizer circuitry. VEvalR and VEvalL show the evaluation

signal of the right and left half bit. Finally, the digital test-signal S_data shows the received data which is

send to the internal digital circuit and S_valid indicates that the received data stream is valid.

Figure 23. Receiving path Q-Clock

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