CLRC63201TSLASH0FE datasheet(101/163 Pages) PHILIPS

No. de pieza	CLRC63201T/0FE

Descripción Electrónicos	Multiple Protocol Contactless Reader IC

PDF	163 Pages

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Fabricante Electrónico	PHILIPS [NXP Semiconductors]

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101 / 163 page

Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

101

Confidential

13.3.2 FORMULA FOR THE SOURCE RESISTANCE

The relative resistance Rsrel can be calculated by

GsCfgCW

EXP

GsCfgCW

rel

MANT

)

(

⋅

The relative resistance Rsrel during the modulation phase can be calculated using GsCfgMod, respectively.

13.3.3 CALCULATING THE EFFECTIVE SOURCE RESISTANCE

13.3.3.1 Wiring Resistance

Wiring and bonding add a constant offset to the driver resistance, that is relevant if TX1 and TX2 are

switched to low impedance. The additional resistance for TX1 can be set approximately to

Ω

≈

wire

500

13.3.3.2 Effective Resistance

The source resistances of the driver transistors RsMaxP found in the Product Information Field (see chapter

6.2) are measured at production test with GsCfgCW set to 01hex. To get the driver resistance for a specific

value set in GsCfgMod the following formula may be used:

(

)

max,

wire

rel

wire

ref

⋅

−

CLRC63201T/0FE Datasheet(PDF) 101 Page - NXP Semiconductors