AD608

Rev. C | Page 6 of 16

TYPICAL PERFORMANCE CHARACTERISTICS

RF FREQUENCY (MHz)

25.0

23.5

22.0

500

50

0

100

150

200

250

300

350

400

450

24.5

24.0

23.0

22.5

Figure 3. Mixer Conversion Gain vs. RF Frequency

IF FREQUENCY (MHz)

0

–8

80

10

0

20

30

40

50

60

70

–1

–4

–5

–6

–7

–2

–3

Figure 4. Mixer IF Port Bandwidth

INPUT POWER AT IFHI (dBm)

3.0

0

10

–70

–80

–60

–50

–40

0

–20

–10

–30

2.5

2.0

1.5

1.0

0.5

5V

3V

Figure 5. IF RSSI Output vs. Input Power at IFHI and Supply Voltage,

Ambient Temperature (See Figure 15)

INPUT POWER (dBm)

3.0

0

2.5

2.0

1.5

1.0

0.5

+85°C

+25°C

–25°C

10

–70

–80

–60

–50

–40

0

–20

–10

–30

Figure 6. IF RSSI Output vs. Input Power and Temperature,

3 V Supply (See Figure 15)

INPUT POWER (dBm)

4

–4

10

–80

–70

–50

0

–60

–40

–20

–10

–30

3

0

–1

–2

–3

2

1

5V

3V

Figure 7. RSSI Error vs. Input Power

(See Figure 15)

100ns/DIV

800mV/DIV

100ns/DIV

1V/DIV

Figure 8. RSSI Power-Up Response

(See Figure 19)