CLRC63201TSLASH0FE datasheet(109/163 Pages) PHILIPS

109 / 163 page

Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

109

Confidential

MIFARE

® : Usage of the MFIN and MFOUT

15.3.1 ACTIVE ANTENNA CONCEPT

The CL RC632 analog circuitry may be used via the pins MFIN and MFOUT. To do so, the following register

settings have to be made:

Value

Signal

At CL RC632 Pin

ModulatorSource

Miller Pulse Coded

MFIN

MFOUTSelect

Manchester Coded with sub-carrier

MFOUT

DecoderSource

Table 15-4: Register setting to use the CL RC632 analog circuitry only

On the other hand, the CL RC632 digital circuitry may be used via the pins MFIN and MFOUT. To do so, the

following register settings have to be made:

Value

Signal

At CL RC632 Pin

ModulatorSource

MFOUTSelect

Miller Pulse Coded

MFOUT

DecoderSource

Manchester Coded with sub-carrier

MFIN

Table 15-5: Register setting to use the CL RC632 digital circuitry only

Two CL RC632 devices configured in the above described way may be connected to each other via the pins

MFOUT and MFIN.

Note: The usage of the active antenna concept is only possible with a baudrate of 106kbaud

according to ISO14443A.

15.3.2 DRIVING TWO RF-PARTS

It is possible, to connect a ‘passive antenna’ to pins TX1, TX2 and RX (via the appropriate filter and matching

circuit) and at the same time an Active Antenna to the pins MFOUT and MFIN.

In this configuration, two RF-parts may be driven (one after another) by one µ-Processor.

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