The OpenLuat Air724UG and Air723UG hardware design manual defines the modules' interfaces, electrical characteristics, and mechanical details.
This manual provides a complete description of the Air724UG and Air723UG cellular modules, covering their hardware interface specifications, electrical parameters, and mechanical dimensions. It includes functional block diagrams, pin descriptions, power‑on/off sequences, power‑saving modes, and detailed reference circuits for UART, USB, SIM, audio, and RF interfaces.
The document also outlines recommended PCB layout, storage conditions, and production guidelines, helping engineers integrate the modules into wireless applications quickly and reliably. This manual is written in Chinese.
| Module dimensions (Air724UG) | 24 mm × 24 mm × 2.3 mm |
|---|---|
| Module dimensions (Air723UG) | 23 mm × 23 mm × 2.3 mm |
| Supply voltage (VBAT) | 3.3 V ~ 4.3 V (typical 3.8 V) |
| Operating temperature (normal) | -35 °C ~ +70 °C |
| Operating temperature (extreme) | -40 °C ~ +85 °C |
| Number of pins | 117 |
| LTE‑FDD transmit power | Class 3 (23 dBm ± 2 dB) |
| LTE‑TDD transmit power | Class 3 (23 dBm ± 3 dB) |
| Supported LTE‑FDD bands | B1, B3, B5, B8 |
| Supported LTE‑TDD bands | B34, B38, B39, B40, B41 |
The modules operate normally from –35 °C to +70 °C.
The module is powered from VBAT 3.3 V to 4.3 V, with a typical value of 3.8 V.
The module provides 117 pins (SMT pads).