HTSICH4801EW/V1,00 NXP Semiconductors, HTSICH4801EW/V1,00 Datasheet - Page 12

• Manufacturer Part Number: HTSICH4801EW/V1,00
• Description: RFID Modules & Development Tools Transponder Wafer
• Manufacturer: NXP Semiconductors

Specifications of HTSICH4801EW/V1,00

• Operating Temp Range: -25C to 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935282034005

Philips Semiconductors
7.3
For data transmission from the HITAG S Transponder to the RWD, the implemented method is called 'load modulation'.
Here the HITAG S Transponder continuously changes the load on the magnetic field, by in principle turning on/off a
resistor, according to the information to transmit. Alteration of the magnetic field is detected by the receiver of the RWD.
The modulation ratio of the RWD antenna voltage depends on the coupling factor of the antenna configuration (RWD
antenna size, transponder antenna size, distance between the antennas,...).
HITAG S
Data Transmission: Transponder → Read/Write Device
Fig.5 Data Transmission Transponder to Read/Write Device.
Transponder
Data (MC)
Antenna
Voltage
Coded
Antenna
Voltage
RWD
Data
on
on
1
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HTS IC H32/HTS IC H56/HTS IC H48
1
Product Specification Revision 3.1 2006 July 18
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