XR-2211 Datasheet, PDF (2/24 Pages) Exar Corporation – FSK Demodulator/ Tone Decoder

XR-2211
BLOCK DIAGRAM
V_CC
GND
NC
1
4
9
INP 2
TIM C1 14
TIM C2 ¹³
TIM R ₁₂
V_REF 10
COMP I 8
Pre Amplifier
VCO
Internal
V_REF
Reference
Loop
q-Det
Quad
q-Det
Lock
Detect
Comparator
FSK Comp
11 _LDO
3 LDF
6 LDOQ
5 LDOQN
7 _DO
Figure 1. XR-2211 Block Diagram
Rev. 3.01
2