AD8346 datasheet(9/20 Pages) AD

9 / 20 page

AD8346

Rev. A | Page 9 of 20

–30

–32

–34

–36

–38

–40

–42

–44

TEMPERATURE (°C)

–40

–20

2030

4050

6070

–30

–10

VP = 5V

VP = 2.7V

VP = 3V

VP = 5.5V

Figure 19. Sideband Suppression vs. Temperature.

FLO = 1900 MHz, I and Q inputs driven in quadrature

with differential amplitude of 2.00 V p-p at FBB = 100 kHz.

BASEBAND DIFFERENTIAL INPUT

VOLTAGE (V p-p)

–30

0.5

–35

–40

–45

–50

–55

1.0

1.5

2.0

2.5

3.0

–60

–65

–70

–75

–80

–6

–8

–10

–12

–14

–16

–18

–20

–22

SSB POUT

3RD HARMONIC

Figure 20. Third Harmonic Distortion and SSB Output

Power vs. Baseband Differential Input Voltage Level.

FLO = 1900 MHz, I and Q inputs driven in quadrature at FBB = 100 kHz.

FREQUENCY (MHz)

–5

–10

–15

–20

–25

–30

800

1200

1600

2000

–40

2400

–35

1400

1800

2200

1000

T = –40°C

T = +25°C

T = +85°C

Figure 21. Return Loss of VOUT Output vs. FLO.

VPOS = 2.7 V.

BASEBAND FREQUENCY (MHz)

–40

–45

–50

–55

–60

–65

2468

VP = 5V

VP = 5.5V

VP = 2.7V

VP = 3V

Figure 22. Third Harmonic Distortion vs. FBB.

FLO =1900 MHz, I and Q inputs driven in quadrature

with differential amplitude of 2.00 V p-p.

TEMPERATURE (°C)

–40

–20

VP = 5V

VP = 2.7V

VP = 3V

VP = 5.5V

Figure 23. Power Supply Current vs. Temperature

FREQUENCY (MHz)

–5

–10

–15

–20

–25

–30

800

1200

1600

2000

–40

2400

–35

1400

1800

2200

1000

T = –40°C

T = +25°C

T = +85°C

Figure 24. Return Loss of VOUT Output vs. FLO.

VPOS = 5.0 V.

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