A typical Android mainboard integrates the following subsystems on a single PCBA:
- Application processor (SoC) — the compute core that drives system smoothness;
- Memory & storage — LPDDR memory and eMMC/UFS storage affect multitasking and load speed;
- Wireless modules — Wi-Fi, Bluetooth, NB-IoT and 4G provide connectivity;
- Display & I/O — HDMI/LVDS/MIPI, USB, UART and GPIO connect screens and peripherals.
Each subsystem must be balanced for the target use case — from cost-sensitive signage players to rugged industrial controllers. Wellchip provides matching platform solutions and PCBA delivery.