SLRM900AFB datasheet(10/16 Pages) PHILIPS

10 / 16 page

2002 May 24

Philips Semiconductors

Product speciﬁcation

I-CODE Long range reader

module hardware

SLRM900

7.5

EMC and EMI

The SLRM900 is designed in such a way that it is possible

to build systems with it, which are in conformance with

EMC and EMI standards.

Electromagnetic emissions comply with the guidelines in

BAPT 222 ZV 122 and EN 300 330. Electromagnetic

immunity complies with the guidelines in ETS 300 683.

The conformance to EMC and EMI standards can only be

granted for systems, not for components.

The following measurements have been passed:

• EMI: EN 300 330, BAPT 222 ZV 122, FCC 47 part 15

• Immunity: ETS 300 683.

The following configuration is in compliance with the

telecommunication standards:

• SLRM900: output power 4 W at 50 Ω; modulation index

m = 15%; standard mode

• Linear power supply (according to the recommendations

in Table 1), connected via the supplied power supply

cable

• Antenna from the I-CODE evaluation kit:

– size: 38 cm

× 28 cm

– number of turns: N = 1

– quality factor: Q = 30

– impedance:

Z =50 Ω

–

ϕ =0°

– according to application note

"I-CODE, Design of

Read/Write antennas".

7.6

Safety and reliability considerations

The SLRM900 has implemented measures for high

reliability.

7.6.1

ANTENNA RUPTURE AND ANTENNA SHORT-CIRCUIT

The SLRM900 does not immediately get damaged in case

of either an antenna short-circuit, or an antenna rupture

with short duration. However, permanent antenna

short-circuit, or antenna rupture, will definitely damage the

SLRM900. The supply current of the SLRM900 will be

limited at typical 1.6 A.

7.6.2

SUPPLY VOLTAGE

The SLRM900 is protected against short supply voltage

peaks and incorrect polarity for a short time, but

permanent incorrect supply will definitely damage the

device.

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