EVAL-ADF7021DBZ5 Datasheet, PDF (7/64 Pages) Analog Devices – High Performance Narrow-Band Transceiver IC

Data Sheet
ADF7021
Parameter
SPURIOUS EMISSIONS
Reference Spurs
HARMONICS⁵
Second Harmonic
Third Harmonic
All Other Harmonics
OPTIMUM PA LOAD IMPEDANCE⁶
fRF = 915 MHz
fRF = 868 MHz
fRF = 450 MHz
fRF = 426 MHz
fRF = 315 MHz
fRF = 175 MHz
Min Typ
Max Unit Test Conditions/Comments
−65
−35/−52
−43/−60
−36/−65
dBc 100 kHz loop bandwidth
13 dBm output power, unfiltered conductive/filtered conductive
dBc
dBc
dBc
39 + j61
Ω
48 + j54
Ω
98 + j65
Ω
100 + j65
Ω
129 + j63
Ω
173 + j49
Ω
1 _{Using Gaussian or raised cosine filtering. The frequency deviation should be chosen to ensure that the transmit occupied signal bandwidth is within the receiver}
IF filter bandwidth.
2 _{Using raised cosine filtering with an alpha = 0.7. The inner frequency deviation = 1.78 kHz, and the POST_DEMOD_BW = 24.6 kHz.}
3 _{For the definition of frequency deviation, refer to the Register 2—Transmit Modulation Register section.}
4 _{Measured as maximum unmodulated power.}
5 _{Conductive filtered harmonic emissions measured on the EVAL-ADF7021DBx, which includes a T-stage harmonic filter (two inductors and one capacitor).}
6 _{For matching details, refer to the LNA/PA Matching section.}
Rev. B | Page 7 of 64