Data Sheet

ADF7021

Rev. B | Page 7 of 64

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

SPURIOUS EMISSIONS

Reference Spurs

−65

dBc

100 kHz loop bandwidth

HARMONICS5

13 dBm output power, unfiltered conductive/filtered conductive

Second Harmonic

−35/−52

dBc

Third Harmonic

−43/−60

dBc

All Other Harmonics

−36/−65

dBc

OPTIMUM PA LOAD IMPEDANCE6

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.