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TH7107
315/433MHz
FSK/FM/ASK Transmitter
3901007107
Page 1 of 14
Data Sheet
Rev. 005
Dec. 2001
Features
!
Fully integrated, PLL-stabilized VCO
!
Flexible frequency range from 310 MHz to 450 MHz
!
FSK through crystal pulling allows modulation from
DC to 20 kbit/s
!
High FSK deviation possible for wideband data
transmission
!
ASK achieved by on/off keying of internal
power amplifier
!
FM possible with external varactor
!
Wide power supply range from 2.2 V to 5.5 V
!
High over-all frequency accuracy
!
Very low standby current
!
Adjustable output power range from
-12 dBm to +2 dBm
!
Adjustable current consumption from
4.8 mA to 11.5 mA
!
FSK deviation and center frequency
independently adjustable
!
Differential output well-suited for loop
antenna
!
External clock available for µC drive,
down to 1.9 V supply
!
”Clock only” mode
!
Conforms to EN 300 220 and similar
standard
Ordering Information
Part No.
Temperature Range
Package
TH7107
-40 C° to 85 °C
SOIC16
Application Examples
Pin Description
!
Keyless car and central locking
!
Low-power telemetry
!
Alarm and security systems
!
General digital data transmission
!
General analog audio signal transmission
LF1
LF2
RO2
DATA
SUB
OUT1
VEE
VCC
TH7107
1
2
3
4
16
15
14
13
5
6
7
8
12
11
10
9
ENTX
RO1
CKOUT
ENCK
OUT2
PS
VCC
VEE
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