IA4420 Datasheet, PDF (10/29 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Transceiver

IA4420
AC Characteristics (continued)
Note 1: Not using a 10 MHz crystal is allowed but not recommended because all crystal referred timing and frequency parameters will
change accordingly.
Note 2: See the BER diagrams in the measurement results section for detailed information (Not available at this time).
Note 3: See matching circuit parameters and antenna design guide for information.
Note 4: Optimal antenna admittance/impedance:
IA4420
315 MHz
433 MHz
868 MHz
915 MHz
Yantenna [S]
1.5E-3 - j5.14E-3
1.4E-3 - j7.1E-3
2E-3 - j1.5E-2
2.2E-3 - j1.55E-2
Zantenna [Ohm]
52 + j179
27 + j136
8.7 + j66
9 + j63
Lantenna [nH]
98.00
52.00
12.50
11.20
Note 5: Adjustable in 8 steps.
Note 6: With selective resonant antennas (see: Application Notes available from http://www.integration.com).
Note 7: During this period, commands are not accepted by the chip.
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