th7122 Melexis Company, th7122 Datasheet - Page 9

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

39010 07122
Rev. 008
Pin No.
27
28
26
29
30
31
32
GAIN_LNA
OUT_LNA
VEE_LNA
OUT_MIX
IN_LNA
VEE_IF
IN_MIX
Name
I/O Type
ground
ground
output
output
input
input
input
IN_MIX
30
GAIN_LNA
IN_LNA
26
OUT_MIX
Functional Schematic
VEE
29
32
210
VCC
VEE
Page 9 of 44
LO
3.8k
VEE
bias
120
VEE
VCC
100
37
VCC
VEE
VEE
0.8p
VEE
OUT_LNA
28
bias
FSK/FM/ASK Transceiver
ground of LNA and PA
LNA open-collector output,
connection to external LC
tank at RF
LNA input, single-ended
LNA gain control input
mixer input, approx. 200Ω
single-ended
ground of IFA, Demodulator,
OA1 and OA2
mixer output, approx. 330Ω
single-ended
Description
27 to 930MHz
TH7122
Data Sheet
June/07