ADL5320ARKZ-R7 datasheet(13/16 Pages) AD

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ADL5320

Rev. 0 | Page 13 of 16

The ADL5320 achieves an ACPR of −82 dBc at 0 dBm output,

at which point device noise and not distortion is beginning to

dominate the power in the adjacent channels. At an output

power of 10 dBm, ACPR is still very low at −70 dBc making the

device particularly suitable for PA driver applications.

Table 7. Load Conditions for Gain MAX

Frequency (MHz)

ΓLoad

(Magnitude)

ΓLoad (°)

Gain MAX (dB)

880

0.5147

159.88

17.76

2140

0.6611

134.40

13.78

2600

0.5835

133.80

12.36

–30

–40

–50

–60

–70

–80

–90

POUT (dBm)

–20

–15

–10

–5

Table 8. Load Conditions for IP3 MAX

Frequency (MHz)

ΓLoad

(Magnitude)

ΓLoad (°)

IP3 MAX (dBm)

880

0.4156

−138.22

46.29

2140

0.5035

+110.27

42.72

2600

0.4595

+102.48

43.01

W-CDMA ACPR PERFORMANCE

Figure 31 shows a plot of adjacent channel power ratio (ACPR)

vs. POUT for the ADL5320. The signal type being used is a single

W-CDMA carrier (Test Model 1−64) at 2140 MHz. This signal

is generated by a very low ACPR source. ACPR is measured at

the output by a high dynamic range spectrum analyzer, which

incorporates an instrument noise correction function.

Figure 31. ACPR vs. POUT, Single Carrier W-CDMA (Test Model 1−64) at 2140

MHz Evaluation Board

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