On May 22nd, Xiaomi Technology released its new flagship smartphone, the 15S Pro, which has attracted much attention. As a tribute to Xiaomi's 15th anniversary, this phone features the self-developed "Xuanjie O1 with second-generation 3nm process" flagship processor, which is the biggest highlight. This news means that Xiaomi has taken a milestone step in the field of core technologies. After years of technical accumulation and strategic layout, Xiaomi has achieved a qualitative leap in chip research and development, becoming the fourth global and second domestic mobile phone brand to master core self-developed chips.
In response to the new platform's pursuit of extreme low power consumption, it is reported that the "Xuanjie O1 3nm" SoC chip adopts a 1.2V IO design. However, most of the current mainstream peripheral ICs such as mobile phone baseband chips, camera modules, audio PAs, and motor drivers still use 1.8V digital IO ports. To realize signal communication between the main platform and peripherals, level conversion chips are needed to convert the level signals output by the main platform to adapt to the level standards of the peripherals. The technical adaptation of this link will be the key to ensuring the coordinated work of the new platform and peripheral components.
AWINIC has been deeply engaged in the signal chain product line for many years, among which the level conversion chip has a long-term layout. This series of products is rich and diverse, covering various specifications such as 2-channel, 4-channel, 6-channel, and 8-channel. In terms of performance, its Data Rate can reach up to 500Mbps, the signal conversion level range supports 0.8V - 5.5V, and it also has bidirectional automatic direction recognition, direction controllable function, and supports open drain and push-pull signal conversion, which can meet the signal conversion needs of various scenarios.
AWINIC is actively deploying in the automotive-grade market, and there are currently 3 automotive-grade models in the level conversion series. Among them, there are models corresponding to 4-channel high-speed and low-speed signal conversion, as well as 6-channel high-speed signal level conversion models. In the automotive market, AWINIC's level conversion series is widely used, having penetrated into TBOX, smart cockpit and other fields, providing strong support for the intelligent development of automobiles.
AWINIC Mass-produced Level Shift Models
1.2V IO I²C Application Level Conversion
AWINIC provides a series of chips suitable for I²C level conversion, including dual-channel, four-channel, and eight-channel specifications, supporting open-drain and push-pull device access, bidirectional signal transmission, and meeting the level adaptation condition of VCCA ≤ VCCB.
1.2V IO SPI Application Level Conversion
1.2V SPI and other signal level conversion supports high-speed signal push-pull applications. It is a 4-channel with automatic direction recognition, supporting bidirectional transmission (i.e., A→B, B→A) level conversion.
It integrates an one-shot module, which can increase the transmission rate to over 100Mbps. Thanks to this, it is very suitable for applications such as converting the MCLK, RESET, and SYNC signals of camera modules from 1.2V to 1.8V, as well as converting the I2S commands issued by the main platform to the digital PA from 1.2V to 1.8V, and general SPI and PWM signal applications, with rich mass production experience.
AWINIC's Strategic Layout for 1.2V IO Chips
With the continuous upgrading of the main chip platform's manufacturing process, the demand for 1.2V and lower voltage IO interfaces is increasingly prominent. As a leading domestic analog IC manufacturer, AWINIC focuses deeply on the three core product tracks of high-performance digital-analog mixed-signal, power management, and signal chain, and has taken the lead in deploying support for 1.2V IO level in many devices. The following are the technical highlights of several general-purpose products:
■AW95124FOR: 24-bit GPIO expansion (1.08V-3.6V)
■AW39103FOR: SIM card level conversion, supporting 1.2V IO, with EMI filter and ESD protection, CSP-9B package with 0.35mm pitch
■AW86938CSR: High-voltage linear motor driver, 1.2V IO, 11V/8kB Sram, 5W driving capability, supporting AAE closed-loop control, csp small-size package
■AW36515EFCR: Boost architecture, single-channel 2A, 1.2V IO, I²C control, 256-level dimming flash driver
With its technical accumulation and forward-looking layout in the analog chip field, AWINIC accurately matches the low-voltage and low-power consumption requirements of the new generation of mobile phone main chip platforms by optimizing device architecture and process design, providing terminal manufacturers with more efficient and reliable chip-level solutions.
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