ADRF6750ACPZ-R7 datasheet(12/40 Pages) AD

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ADRF6750

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OUTPUT IP3 INTERCEPT POINT (dBm)

Figure 17. Output IP3 vs. LO Frequency at Nominal Conditions

–140

–130

–120

–110

–100

–90

–80

–70

–60

LO FREQUENCY (MHz)

ATTENUATION = 0dB

ATTENUATION = 47dB

ATTENUATION

= 21dB

Figure 18. LO Off Isolation vs. Attenuation, LO Frequency, Supply,

and Temperature

–120

–110

–100

–90

–80

–70

–60

–50

–40

–30

–20

LO FREQUENCY (MHz)

ATTENUATION = 0dB

ATTENUATION = 21dB

ATTENUATION = 47dB

Figure 19. 2 × LO Off Isolation vs. Attenuation, LO Frequency, Supply,

and Temperature

–120

–110

–100

–90

–80

–70

–60

–50

–40

LO FREQUENCY (MHz)

UPPER THIRD HARMONIC (

fLO +3 × fBB)

UPPER SECOND HARMONIC (

fLO + 2 × fBB)

LOWER THIRD HARMONIC (

fLO –3 × fBB)

LOWER SECOND HARMONIC (

fLO –2 × fBB)

Figure 20. Second-Order and Third-Order Harmonic Distortion vs.

LO Frequency, Supply, and Temperature

100

–180 –176 –172 –168 –164 –160 –156 –152 –148 –144 –140

(dBm/Hz) NOISE FLOOR AT 15MHz OFFSET FREQUENCY (dBc/Hz)

ATTENUATION =

21dB (dBc/Hz)

ATTENUATION =

0dB (dBc/Hz)

ATTENUATION =

21dB (dBm/Hz)

ATTENUATION =

47dB (dBm/Hz)

Figure 21. Noise Floor at 15 MHz Offset Frequency Distribution at

Worst-Case Conditions and Different Attenuation Settings

–170

–165

–160

–155

–150

–145

–140

–25

–20

–15

–10

–5

OUTPUT POWER (dBm)

Figure 22. Noise Floor at 0 dB Attenuation vs. Output Power

at Nominal Conditions

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