AD8367 datasheet(10/24 Pages) AD

номер детали	AD8367

подробное описание детали	500 MHz, Linear-in-dB VGA with AGC Detector

PDF	24 Pages

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производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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10 / 24 page

AD8367

Rev. A | Page 10 of 24

140MHz

10MHz

70MHz

240MHz

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

2.0

–3.0

–2.5

–2.0

–1.5

–1.0

–0.5

0.5

1.0

1.5

–60

–50

–40

–30

–20

–10

INPUT LEVEL (dBV rms)

10MHz

70MHz

140MHz

240MHz

Figure 21. AGC RSSI (Voltage on DETO Pin) vs. Input Power at 10 MHz,

70 MHz, 140 MHz, and 240 MHz

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

2.0

–3.0

–2.5

–2.0

–1.5

–1.0

–0.5

0.5

1.0

1.5

–60

–50

–40

–30

–20

–10

INPUT LEVEL (dBV rms)

+85

°C

+25

°C

–40

°C

+25

°C

–40

°C

+85

°C

Figure 22. AGC RSSI (Voltage on DETO Pin) vs.

Input Power over Temperature at 70 MHz

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

2.5

2.0

–2.5

–2.0

–1.5

–1.0

–0.5

0.5

1.0

1.5

–60

–50

–40

–30

–20

–10

INPUT LEVEL (dBV rms)

16QAM

IS95FWD

256QAM

WCDMA

64QAM

SINE

Figure 23. AGC RSSI (Voltage on DETO Pin) vs. Input Power

for Various Modulation Schemes

0.8

VAGC

VOUT

0.7

0.6

0.5

0.4

–2–5

–1–5

01–5

2–5

TIME (Seconds)

CAGC = 100pF

Figure 24. AGC Time Domain Response (3 dB Step)

19.0097

19.7297

19.9097

20.0897

20.2697

GAIN SCALING (mV/dB)

Figure 25. Gain Scaling Distribution at 70 MHz

–6.4

–6.2

–6.0

–5.8

–5.6

–5.4

–5.2

–5.0

–4.8

INTERCEPT (dB)

Figure 26. Gain Intercept Distribution at 70 MHz

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