XR2211 Exar Corporation, XR2211 Datasheet - Page 14

• Manufacturer Part Number: XR2211
• Description: FSK Demodulator/ Tone Decoder
• Manufacturer: Exar Corporation

XR-2211
Rev. 3.01
Input
Signal
Signal
Input
Figure 10. Circuit Connection for FSK Decoding of Caller Identification Signals
0.1 F
0.1 F
Figure 11. External Connectors for FSK Demodulation with Carrier
2
Between 400K and 600K
2
Phase
Detect
Phase
Detect
Quad
Loop
Phase
Detect
Phase
Detect
Loop
Quad
14
14
27nF
VCO
11
VCO
C
11
C
0
O
(Bell 202 Format)
13
5%
Detect Capability
2.7nF
C
13
5%
R
C
12
1
12
D
1
3
R
14
F
35.2K
20K
1%
1%
R
Rx
R
20K
R
R
Rx
178K
0
1
1
0
5%
0.1 F
0.1 F
R
1nF
C
Tune
VCO
Fine
F
D
10
10
8
10%
8
C
C
1.8m
F
F
Comp.
Detect
Comp.
Detect
Lock
Lock
R
R
+
+
B
B
Comp.
FSK
Comp.
FSK
Reference
5%
Reference
Internal
Internal
7
6 LDOQ
5 LDOQN
5
6
7
LDOQ
LDOQN
V
CC
5.1K
Output
5%
Data
R
L
V
CC
5.1k
R
L