XR2212 Exar Corporation, XR2212 Datasheet - Page 5

• Manufacturer Part Number: XR2212
• Description: Precision Phase-Locked Loop
• Manufacturer: Exar Corporation

Rev. 2.01
Input
Signal
0.1 F
Signal
Current
Voltage
Output
Output
Input
VCO
VCO
2
Figure 2. Functional Block Diagram of XR-2212 Precision PLL System
(Optional)
External
Divider
0.1 F
0-DET
Input
%N
Figure 3. Generalized Circuit Connection for FM Detection, Signal
5
Amp
Detector
16
Pre
Phase
AMP
14
Tracking or Frequency Synthesis
VCO
Detector
Phase
10
C
O
13
C
1
12
5
R
R
1
0
0.1 F
R
Loop
Filter
3
VCO
R
C
9
7
11
R
F
Reference
Quadrature
Internal
Phase
6
8
Output
XR-2212
+
-
C
O
Op Amp
R
L
V
CC
Demod
Output
5.6K