PCF7936AS/3851/C,1-CT NXP Semiconductors, PCF7936AS/3851/C,1-CT Datasheet - Page 30

• Manufacturer Part Number: PCF7936AS/3851/C,1-CT
• Description: pcf7936as series 32-bit 125 khz read / write security...
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Security Transponder (HITAG2)
11 TEST SETUP
Device characteristics are measured according to the test
setups given below.
Electrical characteristics are measured in a Helmholtz
arrangement that generates an almost homogenous
magnetic field at the position of the device under test
(transponder), see Figure 29.
2010 May 04
Figure 28. Mechanical Stress
Figure 29. Helmholtz setup for electrical characteristics
Signal
Generator
~
Reference Coils
(serial connected, in phase)
Reference Coils
(serial connected, in phase)
F
DUT
MAX
30
The sense coils detect the absorption modulation induced
by the transponder, whereas the reference coils sense the
magnetic flux generated by the field generating coils only.
The voltage difference measured between the sense coils
and reference coils is proportional to the magnetic field
absorption induced by the transponder.
DUT
V
DIF
Product Specification
PCF7936AS
CONFIDENTIAL