th71111 Melexis Company, th71111 Datasheet - Page 14
![no-image](/images/no-image-200.jpg)
th71111
Manufacturer Part Number
th71111
Description
Receiver - 868/915mhz Fsk/ask, Single-conversion Superhet Lqfp32
Manufacturer
Melexis Company
Datasheet
1.TH71111.pdf
(20 pages)
- Current page: 14 of 20
- Download datasheet (460Kb)
4.2
4.2.1
Circuit Features
39010 71111
Rev. 014
Narrow Band FSK Reception
Narrow Band FSK Application Circuit
• Applicable for narrow band FSK
L2
L1
6
1
ENRX
RF input
XTAL
R1
4
3
C5
C4
50
SAWFIL
VCC
Fig. 3: Test circuit for FSK reception (narrow band)
VCC
C1
C3
OUTP
25
26
27
28
29
30
31
32
C15
VEE
RO
VCC
ENRX
LF
VEE
IN_LNA
VCC
1
L3
2
C16
TH71111
R4
* each Vcc pin with blocking cap of 330pF
* one global Vcc blocking cap of 33nF
3
C7
Page 14 of 22
4
RSSI
C17
5
6
7
OUT_MIX2
FSK output
OUT_IFA
8
IN_IFA
FBC2
VCC
FBC1
VCC
VEE
CB*
16
15
14
12
10
13
11
9
C12
VCC
C9
CERDIS
R2
CP
CERFIL
FSK/ASK Receiver
C11
C10
VCC
TH71111
868/915MHz
Data Sheet
April/08
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