Philips Semiconductors
Product specification
1GHz low-voltage Fractional-N synthesizer
SA7025
CURRENT
I
2
I
1
VOLTAGE
V
1
V
2
I
2
I
1
SR00602
Figure 3. Relative Output Current Variation
22nF
10µF
V
CLOCK
CLOCK
1
2
20
19
18
17
16
15
14
13
12
11
DD
V
DD
DATA
DATA
TEST
LOCK
TEST
LOCK
STROBE
STROBE
3
RF
150k
RF
RN
4
V
10K
SS
22nF
22nF
SA7025
150k
RN
50
50
5
RF
IN
RF
IN
10µF
22nF
22nF
V
6
DD
RF
IN
RF
IN
V
DDA
PHP
A
10µF
1k
7
V
V
V
CCP
CCP
PH
P
22nF
100
PHI
V
8
REF
IN
REF
IN
PHI
50
50
150k
RA
9
V
SSA
PHA
22nF
1k
V
10
PH
AUX
IN
AUX
IN
A
SR00603
Figure 4. Test Circuit
8
1996 Aug 6