ADRF6520 datasheet(17/29 Pages) AD

No de pièce	ADRF6520

Description	Dual Programmable Filters and VGAs

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Fabricant	AD [Analog Devices]

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17 / 29 page

Data Sheet

ADRF6520

Rev. 0 | Page 17 of 29

100

90

80

70

60

50

40

30

20

10

0

–10

–5

0

5

101520

25303540

ABSOLUTE GAIN (dB)

36MHz FILTER IIP2

720MHz FILTER IIP2

Figure 57. Out of Band IIP2, IMD2 for 36 MHz and 720 MHz

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

04.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

DIFFERENITAL OUTPUT (V p-p COMPOSITE)

GAIN = +25dB

GAIN = +10dB

GAIN = –7dB

GAIN = +53dB

GAIN = +40dB

Figure 58. In Band IMD3 vs. Differential Output Voltage (V p-p Composite)

over Gain, Bypass Mode at 500 MHz

CH2 500mV

CH4 500mV

M2.00µs

1

Figure 59. VGA1 Gain Step Response

50

45

40

35

30

25

20

15

10

5

0

–10

–5

0

5

101520

25303540

ABSOLUTE GAIN (dB)

36MHz FILTER IIP3

720MHz FILTER IIP3

Figure 60. Out of Band IIP3, IMD3 for 36 MHz and 720 MHz

70

60

50

40

30

20

10

0

1100

1000

900

800

700

600

500

400

300

200

100

FREQUENCY (MHz)

VGN1 = 1.5V, VGN2 = 0V

VGN1 = 0V, VGN2 = 0V

VGN1 = 1.5V, VGN2 = 1.5V

Figure 61. Common-Mode Rejection Ratio (CMRR) vs. Frequency,

Bypass Mode

CH2 500mV

CH4 500mV

M2.00µs

1

Figure 62. VGA2 Gain Step Response; C9 and C16 = Open

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