ADF7902 is a low power UHF receiver IC that supports 2 kbps data rate and 34.8 kHz frequency deviation. It operates at 5V and consumes 18.5mA of current.
The ADF7902 is a single‑chip, low‑power UHF receiver designed for ISM‑band applications. It demodulates FSK signals with a 34.8 kHz deviation at data rates up to 2 kbps and offers eight selectable RF channels between 369.5 MHz and 395.9 MHz, controlled by three digital inputs.
The device operates from a 5 V supply, drawing 18.5 mA in normal receive mode and as little as 1 µA in standby. Detailed specifications, pin functions, typical performance plots, and example application circuits are provided to aid integration into microcontroller‑based designs.
| Supply Voltage | 5.0 V |
|---|---|
| Frequency Range | 369.5 MHz to 395.9 MHz |
| Number of RF Channels | 8 |
| Data Rate | 2 kbps |
| Frequency Deviation | ±34.8 kHz |
| Input Sensitivity | -110 dBm |
| IF Filter Bandwidth | 200 kHz (‑3 dB) |
| Adjacent Channel Rejection | 60 dB @ 1 MHz offset |
| Current Consumption (Receiver Enabled) | 18.5 mA |
| Current Consumption (Sleep Mode) | 1 µA |
| Crystal Reference Frequency | 9.8304 MHz ±25 ppm |
| Input High Voltage | 0.7 V |
| Input Low Voltage | 0.2 V |
| Output High Voltage | 4.5 V |
| Output Low Voltage | 0.4 V |
| Output Drive Level | 2 mA |
The device operates from a 5.0 V supply.
Eight RF channels are selectable using three digital inputs.
Typical current consumption is 18.5 mA with the receiver enabled.
The input sensitivity is –110 dBm.