ADF7902 is a low power UHF receiver IC that supports FSK modulation/demodulation and 2kbps data rate. Its features include single-chip design, eight selectable RF channels, low power consumption, and a wide operating frequency range.
The ADF7902 is a low‑power UHF receiver that demodulates frequency‑shift‑keyed (FSK) signals up to 2 kbps with a 34.8 kHz deviation. It operates on eight selectable RF channels ranging from 369.5 MHz to 395.9 MHz, each selected via three digital control lines. The device is designed for low‑power applications, drawing 18.5 mA during normal operation and only 1 µA in standby.
The datasheet includes detailed specifications such as supply voltage, current consumption, input sensitivity, and pin descriptions, as well as typical performance graphs, absolute maximum ratings, and example application circuits for single‑ and dual‑receiver configurations.
| Supply Voltage | 5.0 V |
|---|---|
| Data Rate | 2 kbps |
| Frequency Range | 369.5 MHz to 395.9 MHz |
| Input Sensitivity | -110 dBm |
| Receiver Current Consumption (enabled) | 18.5 mA |
The device operates from a 5.0 V supply.
Eight RF channels are selectable via three digital inputs.
Typical current consumption is 18.5 mA with the receiver enabled.
The receiver supports data rates up to 2 kbps.