ADRF6821 datasheet(13/61 Pages) AD

13 / 61 page

Data Sheet

ADRF6821

Rev. A | Page 13 of 61

100

200

300

400

500

IF FREQUENCY (MHz)

LO = 1000MHz

LO = 2000MHz

LO = 2800MHz

Figure 10. Output P1dB vs. IF Frequency, RF Sweep with Fixed LO,

Various LO Frequency

1.2

1.4

1.6

1.8

2.0

VCM (V)

LO = 1000MHz

LO = 2000MHz

LO = 2800MHz

Figure 11. Output P1dB vs. Common-Mode Voltage (VCM), IF = 100 MHz

600

1040

1480

1920

2360

2800

LO FREQUENCY (MHz)

+105°C

+27°C

–40°C

Figure 12. Output IP3 vs. LO Frequency, Measured on −10 dBm for Each

Tone at the IF Output for Various Temperature

600

1040

1480

1920

2360

2800

LO FREQUENCY (MHz)

MIXER_GAIN_PEAK = 0

MIXER_GAIN_PEAK = 3

Figure 13. Output IP3 vs. LO Frequency, Measured on −10 dBm for

Each Tone at the IF Output for Various MIXER_GAIN_PEAK

(Register 0x003A, Bits[1:0]) Settings

600

1040

1480

1920

2360

2800

LO FREQUENCY (MHz)

DSA = 0dB

DSA = 8dB

DSA = 15dB

Figure 14. Output IP3 vs. LO Frequency for Various DSA Settings,

Measured on −10 dBm for Each Tone at the IF Output

100

200

300

400

500

IF FREQUENCY (MHz)

LO = 1000MHz

LO = 2000MHz

LO = 2800MHz

Figure 15. Output IP3 vs. IF Frequency for Various LO Frequencies,

Measured on −10 dBm for Each Tone at the IF Output, Low Side LO for 1 GHz

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