th7122 Melexis Company, th7122 Datasheet - Page 34

• Manufacturer Part Number: th7122
• Description: Transceiver - 27 To 930mhz, Fsk/fm/ask, Multi-channel Lqfp32
• Manufacturer: Melexis Company

7.4
Software Settings for ASK
39010 07122
Rev. 008
315.00 MHz
434.00 MHz
915.00 MHz
frequency
Channel
Fig. 16: Test circuit for ASK operation in Programmable User Mode (normal data slicer option)
ASK Application Circuit Programmable User Mode (normal data slicer option)
TX_OUT
RX_IN
Combining
RR
80
80
80
network
L1
CB1
RB1
C1
LTX0
CRX0
CTX0
C2
CB2
f
3043
4233
9043
RO
NR
= 8.0000MHz
CTX4
25
26
27
28
29
30
32
31
OUT_PA
IN_LNA
VEE_LNA
OUT_LNA
GAIN_LNA
IN_MIX
VEE_IF
OUT_MIX
CB5
CF2
1
RT
8
8
8
2
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TH7122
3
RF
CF1
C0
C3
4
L0
CB6
315
434
915
5
NT
6
7
detect
Lock
C5
VCC_DIG
RE/SCLK
ASK/FSK
FSK_SW
260µA
260µA
260µA
IN_DTA
8
RX
RO
FSK/FM/ASK Transceiver
16
15
14
13
12
10
VEE_RO
CPCUR
11
9
RSSI
SDEN
CB7
SCLK
SDTA
1300µA
1300µA
1300µA
XTAL CX1
TX
VCC
3wire bus
output
input
ASK
ASK
27 to 930MHz
CB0
300 µA
300 µA
300 µA
TH7122
RX
VCOCUR
Data Sheet
900µA
900µA
900µA
June/07
TX