AD6432AST datasheet(9/20 Pages) AD

9 / 20 page

AD6432

–9–

REV. 0

FREQUENCY OF VCO – MHz

–1.2

–1.0

–0.2

–0.4

–0.6

–0.8

–1.4

TA = –40 C

TA = +25 C

TA = +85 C

Figure 15. PLL Loop Voltage at FLTR Pin (KVCO) vs.

Frequency

GAIN VOLTAGE – Volts

–60

–50

–10

–20

–30

–40

0.5

1.0

1.5

2.0

2.5

–70

Figure 16. System (Mixer + IF LC Filter + IF Amplifier +

Demodulator) 1 dB Compression Point vs. VGAIN, TA = +25°C,

VPOS = 3 V, FRF = 250 MHz, FIF = 26 MHz, VGREF = 1.2 V

GAIN VOLTAGE – Volts

–60

–50

–10

–20

–30

–40

0.5

1.0

1.5

2.0

2.5

–70

Figure 17. System (Mixer + IF LC Filter + IF Amplifier +

Demodulator) IP3 vs. VGAIN, TA = +25°C, VPOS = 3 V,

FIF = 26 MHz, FRF = 250 MHz, VGREF = 1.2 V

VGAIN – Volts

0.5

1.0

1.5

2.0

2.5

–2

–4

Figure 18. Rx Mixer Conversion Gain vs VGAIN, TA = +25°C,

VPOS = 3 V, FRF = 250 MHz, FIF = 26 MHz, VGREF = 1.2 V

VGAIN – Volts

0.5

1.0

1.5

2.0

2.5

Figure 19. IF Amplifier/Demodulator Gain vs. VGAIN,

TA = +25°C, VPOS = 3 V, FRF = 250 MHz, FIF = 26 MHz,

VGREF = 1.2 V

GAIN VOLTAGE – Volts

0.5

1.0

1.5

2.0

2.5

Figure 20. System (Mixer + IF LC Filter + IF Amplifier +

Demodulator) Gain vs. VGAIN, TA = +25°C, VPOS = 3 V,

FIF =26 MHz, FRF = 250 MHz, VGREF = 1.2 V

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