Philips Semiconductors
Product specification
1GHz low-voltage Fractional-N synthesizer
SA7025
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
5
0
0
V
V
= 3V,
DD
–5
–10
–15
= 5V,
DDA
N = 100
–5
V
/V
DD DDA
–10
–15
–20
–20
–25
–30
3/3V
3/5V
5/5V
t = –40°C
t = 25°C
t = 85°C
N=100
35
10
15
20
25
30
40
45
50
55
10
15
20
25
30
35
40
FREQUENCY (MHz)
FREQUENCY (dBm)
SR00617
SR00631
Figure 18. Reference Divider Minimum Input Power vs
frequency and Supply
Figure 21. Reference Divider Minimum Input Power vs
Frequency and Temperature
0
–10
V
/V
DD DDA
V
V
=3V,
=5V,
DD
t = –40°C
t = 25°C
t = 85°C
3/3V
3/5V
5/5V
–5
–10
–15
–20
–25
–30
DDA
T
=amb,
PA=1,
N=100
A
PA=1,
N=100
–15
–20
–25
30
50
70
90
110
130
150
30
50
70
FREQUENCY (MHz)
90
FREQUENCY (MHz)
SR00618
SR00632
Figure 19. Auxiliary Divider Minimum Input Power vs
Frequency and Supply
Figure 22. Auxiliary Divider Minimum Input Power vs
Frequency and Temperature
0
0
V
/V
DD DDA
V
V
=3V,
DD
T
= amb,
A
=5V
–5
–10
–15
–20
–25
–30
DDA
PA=0,
N=25
PA=0,
N=25
–5
–10
–15
–20
t = –40°C
t = 25°C
t = 85°C
3/3V
3/5V
5/5V
50
100
150
200
50
100
150
FREQUENCY (MHz)
200
250
FREQUENCY (MHz)
SR00619
Figure 20. Auxiliary Divider Minimum Input Power vs
Frequency and Supply
Figure 23. Auxiliary Divider Minumum Input Power vs
Frequency and Temperature
17
1996 Aug 6
NXP [ NXP ]
