1. General / Overview:

️· Device: TH72002 ASK Transmitter
️· Frequency: 315 MHz

2. Start-Up Parameters:

️· Start-Up Time (ton): 1.2 - 1.5 ms (from standby to transmit mode)

3. Frequency Stability:

️· Frequency Stability vs. Supply Voltage (dfVCC): ±3 ppm
️· Frequency Stability vs. Temperature (dfTA):
- ±10 ppm (crystal at constant temperature)
️· Frequency Stability vs. CRO Variation: ±20 ppm

4. Output Power Steps:

*This section is heavily dependent on a resistor (RPS) value. The table indicates the RPS value to use for each power step.*

Power Step	RPS (kΩ)	Output Power (dBm)
0	< 3	-70
1	22	-13 to -9.51
2	56	-2.5 to -0.51
3	120	2.5 to 5.1
4	Not Connected	5 to 11.1

5. Spurious Emissions:

️· According to EN 300 220-1:
- 47 MHz < f < 74 MHz: -54 dBm
- 87.5 MHz < f < 118 MHz: -54 dBm
- 174 MHz < f < 230 MHz: -36 dBm
- 470 MHz < f < 862 MHz: -30 dBm
- f > 1 GHz: -30 dBm

6. Notes & Conditions:

️· Output matching network tuned for a 5V supply.
️· The output power values are dependent on the RPS resistor used.

Important Considerations & Limitations:

️· Incomplete Data: This is an excerpt, so there's likely more information in the full datasheet.
️· Conditions: The data is presented under specific test conditions (e.g., voltage, temperature, load). Performance may vary outside of those conditions.
️· Resistor Dependence: The output power levels are very sensitive to the value of the RPS resistor. The provided table is essential for configuring the transmitter's output power.