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TH71221 Datasheet(PDF) 34 Page - Melexis Microelectronic Systems

Part # TH71221
Description  FSK/FM/ASK Transceiver
PDF  44 Pages
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Manufacturer  MELEXIS [Melexis Microelectronic Systems]
Direct Link  http://www.melexis.com
Logo MELEXIS - Melexis Microelectronic Systems

TH71221 Datasheet(HTML) 34 Page - Melexis Microelectronic Systems

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TH71221
27 to 930MHz
FSK/FM/ASK Transceiver
39010 071221
Page 34 of 44
Data Sheet
Rev. 009
Nov/15
7.4
ASK Application Circuit Programmable User Mode (normal data slicer option)
Fig. 16: Test circuit for ASK operation in Programmable User Mode (normal data slicer option)
Software Settings for ASK
Channel
frequency
fRO = 8.0000MHz
CPCUR
VCOCUR
RR
NR
RT
NT
RX
TX
RX
TX
315.00 MHz
80
3043
8
315
260µA
1300µA
300 µA
900µA
434.00 MHz
80
4233
8
434
260µA
1300µA
300 µA
900µA
915.00 MHz
80
9043
8
915
260µA
1300µA
300 µA
900µA
CB7
C5
CRX0
CTX0
CB2
CF2
C2
L1
CB1
C1
LTX0
CTX4
SDEN
SDTA
SCLK
RSSI
ASK
input
XTAL CX1
C3
CF1
Lock
detect
L0
RF
RX_IN
TX_OUT
ASK
output
CB0
VCC
Combining
network
3wire bus
CB6
C0
CB5
TH71221
9
10
11
12
13
14
15
16
8
1
2
3
4
5
6
7
32L QFN 5x5
VEE_RO
RO
FSK_SW
IN_DTA
ASK/FSK
VCC_DIG
RE/SCLK
GAIN_LNA
VEE_IF
IN_MIX
OUT_MIX
OUT_PA
OUT_LNA
VEE_LNA
IN_LNA
32
31
30
29
28
27
26
25
RB1



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