TN0280 Datasheet, PDF (5/12 Pages) STMicroelectronics – Migrating from the LRI2K to the LRI1K RFID IC

TN0280
2
Built-in tuning capacitor
Built-in tuning capacitor
Table 2 summarizes the built in tuning capacitor value available for LRI2K and LRI1K.
Table 2. Internal tuning capacitor
Parameter
LRI2K
Internal tuning capacitor value 21 pF, 23.5 pF, 28.5 pF or 97 pF
LRI1K
21 pF
Customers using LRI2K in 21pF version can use LRI1K as a direct replacement without
needing to retune their antenna.
For customers using any other LRI2K tuning capacitor version, a redesign of the antenna
will be necessary to restore the desired tuning frequency.
Doc ID 17392 Rev 1
5/12