ADMV4420ACPZ-R2 datasheet(10/61 Pages) AD

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Giải thích chi tiết về linh kiện	K Band Downconverter with Integrated Fractional-N PLL and VCO

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10 / 61 page

ADMV4420

Data Sheet

Rev. A | Page 10 of 61

TYPICAL PERFORMANCE CHARACTERISTICS

A 0 dBm external reference at 50 MHz is used with VVPOS1_VCO = VVPOS2_PLL = VVPOS3_CP = VVPOS4_IF = 5 V, RF input power = −40 dBm, and

the PLL loop filter bandwidth = 60 kHz with 45° of phase margin, unless otherwise noted.

IF = 900 MHz, LOW-SIDE INJECTION LO PERFORMANCE

RF minimum and maximum frequencies are limited by the LO frequency = 16.75 GHz to 21.15 GHz.

RF FREQUENCY (GHz)

+85°C

+25°C

–40°C

Figure 16. Conversion Gain vs. RF Frequency at Various Temperatures

RF FREQUENCY (GHz)

+85°C

+25°C

–40°C

NO FILTERING APPLIED

Figure 17. Noise Figure vs. RF Frequency at Various Temperatures

RF FREQUENCY (GHz)

5.25V

5.00V

4.75V

Figure 18. Conversion Gain vs. RF Frequency at Various Supply Voltages,

TA = 25°C

RF FREQUENCY (GHz)

5.25V

5.00V

4.75V

NO FILTERING APPLIED

Figure 19. Noise Figure vs. RF Frequency at Various Supply Voltages,

TA = 25°C

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