HFA3524 Datasheet, PDF (8/15 Pages) Intersil Corporation – 2.5GHz/600MHz Dual Frequency Synthesizer

HFA3524
Typical HFA3524 Performance Curves (Continued)
V_CC = 2.7V TO 5.5V,
f_IN = 0.5GHz TO 3GHz
V_CC = 2.7V TO 5.5V,
f_IN = 10MHz TO 1000MHz
4
3
1
2
41
32
Marker 1 = 1GHz, Real = 101, Imaginary = -144
Marker 2 = 2GHz, Real = 37, Imaginary = -54
Marker 3 = 3GHz, Real = 22, Imaginary = -2
Marker 4 = 500MHz, Real = 209, Imaginary = -232
FIGURE 9. RF INPUT IMPEDANCE
Marker 1 = 100MHz, Real = 589, Imaginary = -209
Marker 2 = 200MHz, Real = 440, Imaginary = -286
Marker 3 = 300MHz, Real = 326, Imaginary = -287
Marker 4 = 500MHz, Real = 202, Imaginary = -234
FIGURE 10. IF INPUT IMPEDANCE
-10
-15
-20
-25
-30
V_CC = 5.5V
-35
V_CC = 2.7V
-40
-45
1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000
FREQUENCY (MHz)
FIGURE 11. RF SENSITIVITY vs FREQUENCY
-10
-15
-20
-25
-30
-35
-40
V_CC = 5.5V
-45
V_CC = 2.7V
-50
0
100
200
300
400
500
600
FREQUENCY (MHz)
FIGURE 12. IF INPUT SENSITIVITY vs FREQUENCY
0
-10
V_CC = 5.5V
-20
0.200
0.063
-30
-40
V_CC = 2.7V
0.020
0.006
-50
0.002
-60
0
10
20
30
40
50
FREQUENCY (MHz)
FIGURE 13. OSCILLATOR INPUT SENSITIVITY vs FREQUENCY
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