SA8025A データシートの表示（PDF） - Philips Electronics

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SA8025A

Low-voltage 1.8GHz fractional-N synthesizer

Philips Electronics 

Philips Semiconductors

1.8GHz low-voltage Fractional-N synthesizer

Product specification

SA8025A

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

0

–5

–10

–15

VDD/VDDA

–20

3/3V

3/5V

5/5V

–25

N=100

–30

10 15 20 25 30 35 40 45 50 55

FREQUENCY (MHz)

SR00569

Figure 18. Reference Divider Minimum Input Power vs

Frequency and Supply

0

–5

TA =amb,

PA=1,

–10

N=100

VDD/VDDA

3/3V

3/5V

5/5V

5

VDD= 3V,

0

VDDA= 5V,

N = 100

–5

–10

t = –40°C

–15

t = 25°C

t = 85°C

–20

10

15

20

25

30

35

40

FREQUENCY (dBm)

SR00572

Figure 21. Reference Divider Minimum Input Power vs

Frequency and Temperature

–10

VDD =3V,

VDDA=5V,

PA=1,

N=100

–15

t = –40°C

t = 25°C

t = 85°C

–15

–20

–20

–25

–30

30

50

70

90

110

130

150

FREQUENCY (MHz)

SR00570

Figure 19. Auxiliary Divider Minimum Input Power vs

Frequency and Supply

0

TA = amb,

–5 PA=0,

N=25

VDD/VDDA

–10

–15

3/3V

–20

3/5V

5/5V

–25

–25

30

50

70

FREQUENCY (MHz)

90

SR00573

Figure 22. Auxiliary Divider Minimum Input Power vs

Frequency and Temperature

0

VDD=3V,

VDDA=5V

–5

PA=0,

N=25

–10

t = –40°C

t = 25°C

t = 85°C

–15

–30

50

100

150

200

FREQUENCY (MHz)

250

SR00571

Figure 20. Auxiliary Divider Minimum Input Power vs

Frequency and Supply

–20

50

100

150

FREQUENCY (MHz)

200

SR00574

Figure 23. Auxiliary Divider Minumum Input Power vs

Frequency and Temperature

1996 Oct 15

18

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