[Mobile Home News] On December 14, OPPO held OPPO INNO DAY 2022, and a number of products were released at the conference. In addition to OPPO's first health concept product, OHealth H1 and Andes Intelligent Cloud, OPPO's second self-developed chip Mariana MariSilicon Y. This chip is a Bluetooth audio SoC chip, which adopts advanced N6RF process technology, bringing important breakthroughs in the field of wireless audio.
It is understood that OPPO Mariana MariSilicon Y can effectively improve the transmission rate and connection quality of Bluetooth audio, realize lossless transmission of wireless audio, and provide users with a more personalized audio experience.
OPPO MariSilicon Y pioneered the ultra-high-speed Bluetooth solution, with Bluetooth transmission rate up to 12Mbps. Such a large bandwidth combined with OPPO's customized URLC lossless encoding and decoding can achieve wireless transmission of 192kHz/24bit lossless audio. Currently, mainstream high-quality Bluetooth transmission codecs can transmit approximately 96kHz/24bit audio, while mainstream Bluetooth transmission codecs only support 44kHz/16bit sampling rate and bit width transmission.
Mariana MariSilicon Y's speed reaches 4 times that of standard Bluetooth. Even compared with the 8Mbps Bluetooth rate of the General Motors flagship chip in 2022, Mariana MariSilicon Y has reached a faster rate of 1.5 times.
At the same time, with the 590 GOPS computing power of the NPU unit in Mariana MariSilicon Y and the 25 GOPS computing power of the DSP, it can combine advanced AI algorithms to bring better computing audio. In addition to not relying on mobile phone computing power in terms of music playback, EQ adjustment, encoding and decoding, etc., effectively reducing latency, it can also provide better 3D audio functions and active noise reduction.
All this comes from the advanced process adopted by OPPO Mariana MariSilicon Y. Compared with the logic chip, it has evolved to 4nm now. The RF chip did not evolve to the N6 node for the first time until 2021. Mariana MariSilicon Y has further expanded to the world's most advanced N6RF RF chip technology based on 6nm.
Mariana MariSilicon Y adopts the world's leading RF chip process technology, which also means that OPPO has mastered the ability to apply advanced processes to RF systems. Mariana Y is also one of the most advanced Bluetooth SoC chips with manufacturing processes to date. The design of
RF chip is recognized by the industry as the most challenging area. On the one hand, RF chips need to be designed more by experience and exploration. Without such accumulation and accumulation, it is difficult to do very well. Design needs to challenge process limits and innovative circuit structures. On the other hand, today's limitations in process and packaging, such as the natural shortcomings in noise figures and linearity , add more uncertainty in the design. For OPPO's self-developed chips, it can be said that it is "crossing the river by feeling the stones".
But the ability to develop Mariana MariSilicon Y chip that adopts the top N6RF process also means that OPPO's self-developed chip has taken a solid first step in the field of wireless connectivity.
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