TechInsights Teardown: Xiaomi 12T mobile handset

The smartphone market may be struggling this year due to ongoing geopolitical issues, inflation and the global economic downturn. However, most are forecasting that a return to growth will occur at the end of the year or in early 2024.

Xiaomi has been placing itself in a position to capture a portion of the market that may not be served by the likes of the leaders in Apple, Samsung and other giant smartphone OEMs. Xiaomi is targeting the middle range smartphone market with smartphones that have a good number of features but are not a staggering price point that will break the bank.

Its 12T model was released last year for the global market for both the 4G and 5G market.

The smartphone includes the 8100 Dimensity chipset from MediaTek as well as massive 108-megapixel CMOS wide-angle camera. There is 8 GB mobile DRAM from Samsung and many other electronic components.

The following is a partial deep dive into the 12T smartphone from TechInsights.

Summary

• 6.68 inch AMOLD display
• 8 GB mobile SDRAM
• 20 MP BSI CMOS/108 MP BSI CMOS wide-angle/2 MP CMOS

Released: October 2022

Price: $680

Availability: Worldwide

Target market: Consumer/communications

The main board of the Xiaomi 12T smartphone includes the Dimensity 8100 applications/baseband processor from MediaTek as well as main memory. Source: TechInsights

Main board

The main board of the Xiaomi 12T smartphone includes the octa-core Dimensity 8100 applications/baseband processor and the multi-chip memory 8 GB mobile SDRAM from Samsung. Other electronic components include:

• Camera power management IC from OmniVision
• Envelope power tracker from MediaTek
• Class-D audio amplifier from Cirrus Logic
• Flash LED driver from Orient-Chip Semiconductor
• Single Cell 12 A switched capacity charger from Southchip
• Buck-boost converter from RichTek
• Skyworks’ LTE and 5G front-end module and quad-band GSM front end module
• Maxscend’s 5G NR front-end module
• Qorvo’s SP4T RF switch and RF antenna tuner
• Qualcomm’s RF switch with filters
• ST Microelectronics’ six-axis MEMS accelerometer and gyroscope
• Semtech’s capacitive proximity controller

(Learn more about LED drivers from Globalspec.com)

The battery board inside the Xiaomi 12T smartphone has circuit protection and other components used for battery operation. Source: TechInsights

Battery board

The battery board includes the electronic components to ensure operation of the lithium-ion batteries inside the Xiaomi 12T smartphone. This includes a battery fuel gauge from Essemi and battery protection ICs from Mitsumi.

(Learn more about circuit protection devices on Globalspec.com)

The 108-megapixel camera inside the Xiaomi 12T smartphone features a CMOS image sensor from Samsung and other components. Source: TechInsights

108 MP camera

The 108-megapixel camera is a wide-angle rear camera that includes numerous electronic components for operations. It includes:

• Samsung’s 108 MP BSI CMOS stacked image sensor
• Dongwoon Anatech’s autofocus VCM driver

(Learn more about CMOS image sensors on Globalspec.com)

The many components found inside the Xiaomi 12T smartphone. Source: TechInsights

Major components

• $100.03 — Octa-core Dimensity 8100-ultra applications/baseband processor — MediaTek (Qty: 1)
• $47.14 — 120 HZ display/touchscreen subsystem (Qty: 1)
• $44.23 — 108 MP wide-angle read camera subsystem (Qty: 1)
• $21.53 — Multichip memory 0 256 GB 3D TLC V-NAND flash — Samsung (Qty: 1)
• $20.80 — Multichip memory – 8 GB memory LPDDR5 SDREAM — Samsung (Qty: 1)
• $13.78 — RF Transceiver — MediaTek (Qty: 1)
• $11.71 — Back cover
• $8.03 — Battery subsystem Donguan Amperex (Qty: 1)
• $7.77 — Main enclosure (Qty: 1)