th7122 Melexis Company, th7122 Datasheet - Page 8

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

39010 07122
Rev. 008
Pin No.
17
18
19
20
21
23
22
24
25
FS0/SDEN
VCC_PLL analog I/O
VEE_DIG
VEE_PLL
OUT_PA
TNK_LO
FS1/LD
PS_PA
Name
LF
analog I/O
analog I/O
analog I/O
I/O Type
ground
ground
input /
output
output
input
TNK_LO
21
23
PS_PA
LF
VCC
24
FS0/SDEN
OUT_PA
FS1/LD
25
17
19
Functional Schematic
VEE
6.5k
120
VEE
VEE
VEE
VCC
VCC
10µA
120
Page 8 of 44
VCC
VCC
VEE
VEE
6.3pF
20p
120
120
1k
VCC
VEE
VEE
VCOCUR
VD
VEE
VCC
VCC_PLL
FSK/FM/ASK Transceiver
VEE
20
frequency select input / se-
rial data enable input
ground of serial port and
control logic
frequency select input / lock
detector output
VCO open-collector output,
connection to VCC or exter-
nal LC tank
VCO open-collector output,
connection to external LC
tank
charge pump output, con-
nection to external loop filter
ground of PLL frequency
synthesizer
power-setting input
power amplifier open-
collector output
Description
27 to 930MHz
TH7122
Data Sheet
June/07