Key facts
- Manuals
- 1
- Languages
- ZH
- Last added
- 2012-03-14
Featured TDL-9923 manuals
TDL TDL-9923 Low-Power Receive Module User Manual
The TDL-9923 is a high‑frequency receive module that uses imported SMD components, a 6.5 GHz transistor and high‑Q inductors. It offers high sensitivity, low power consumption and is suited for anti‑theft systems, industrial remote‑control, telemetry, and household appliance remote control.
Key technical parameters include a 3.0 VDC ±0.5 V supply, ≤300 µA current draw, super‑regeneration operation, OOK/ASK modulation, 250‑450 MHz frequency range, 2 MHz bandwidth, sensitivity better than –105 dBm, and TTL‑level output. Antenna length, stable power, and MCU clock below 4 MHz are important for optimal performance. This manual is written in Chinese.
Covers: Applicable Range · Technical Specifications · Usage Precautions · Dimensions and Pin Definition
Latest TDL-9923 manuals
TDL TDL-9923 Low-Power Receive Module User Manual
User Manual 1 pages · 246 KB · ZHThe TDL-9923 low‑power receive module user manual provides specifications, wiring, and usage guidelines for the 250‑450 MHz OOK/ASK receiver.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in TDL-9923 manuals
What antenna length should be used with the TDL-9923?
Use a 24 cm antenna for 315 MHz operation and an 18 cm antenna for 433.92 MHz operation.
What MCU clock frequency is recommended when the module is used with a microcontroller?
The MCU clock frequency should be below 4 MHz, and the crystal should be placed as far as possible from the RF module.