Hig h -Fre q u e n c y Wa ve fo rm Ge n e ra t o r
-5V
+5V
C1
1µF
C2
1µF
÷N
14 16 17 20
4
CENTER
FREQUENCY
SYNC DV+ V+ V- A1
3
1
7
A0
REF
MAX038
R2
C
W
R3
R1
MAX038
DADJ
50Ω
19
PHASE DETECTOR
10
8
RF
OUTPUT
IIN
OUT
R4
FADJ
R5
OFFSET
R6
GAIN
13
12
PDI
EXTERNAL
OSC INPUT
5
COSC
PDO
-5V
GND GND GND GND GND DGND
11 18 15
C4
CAPTURE
C3
2
6
9
FREQUENCY
Figure 4. Phase-Locked Loop Using External Phase Detector
-5V
+5V
C1
1µF
C2
1µF
÷N
14 16 17 20
4
CENTER
FREQUENCY
SYNC DV+ V+ V- A1
3
1
7
A0
REF
R2
C
W
R3
R1
50Ω
MAX038
FREQUENCY PHASE DETECTOR
DADJ
19
10
8
IIN
OUT
R4
RF
FADJ
OUTPUT
R5
OFFSET
R6
GAIN
EXTERNAL
OSC INPUT
13
12
PDI
5
COSC
PDO
-5V
GND GND GND GND GND DGND
11 18 15
C4
CAPTURE
C3
2
6
9
FREQUENCY
Figure 5. Phase-Locked Loop Using External Frequency Phase Detector
14 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
