Features: · Fully integrated PLL-stabilized VCO· Frequency range from 290 MHz to 350 MHz· Single-ended RF output· ASK achieved by on/off keying of internal power amplifier up to 40 kbit/s· Wide power supply range from 1.95 V to 5.5 V· Very low standby current· On-chip low voltage detector· High ov...
TH72002: Features: · Fully integrated PLL-stabilized VCO· Frequency range from 290 MHz to 350 MHz· Single-ended RF output· ASK achieved by on/off keying of internal power amplifier up to 40 kbit/s· Wide powe...
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Parameter |
Symbol |
Condition |
Min |
Max |
Unit |
Supply voltage |
VCC |
0 |
7.0 |
V | |
Input voltage |
VIN |
-0.3 |
VCC+0.3 |
V | |
Storage temperature |
TSTG |
-65 |
150 |
°C | |
Junction temperature |
TJ |
150 |
°C | ||
Thermal Resistance |
RthJA |
163 |
K/W | ||
Power dissipation |
Pdiss |
0.12 |
W | ||
Electrostatic discharge |
VESD |
human body model (HBM) according to CDF-AECQ100- 002 |
±2.0 |
KV |
The TH72002 ASK transmitter IC is designed for applications in the 315 MHz industrial-scientific-medical (ISM) band. It can also be used for any other system with carrier frequencies ranging from 290 MHz to 350 MHz.
The transmitter TH72002's carrier frequency fc is determined by the frequency of the reference crystal fref. The integrated PLL synthesizer ensures that each RF value, ranging from 290 MHz to 350 MHz, can be achieved by using a crystal with a reference frequency according to: fref = fc/N, where N = 32 is the PLL feedback divider ratio.