The electronics industry in the past 2023 can be summed up in one word - "difficult". The semiconductor industry is at the bottom of the cycle, destocking stage, consumer electronics is down, most of the electronics industry is facing a dilemma, looking forward to the dilemma reversal, but on the other hand, the explosive growth of generative artificial intelligence, the related AI computing industry chain has indeed been unique. However, although AIGC is popular, there has not been a phenomenal mobile hardware product that supports AIGC so far. Therefore, looking back on 2023, it is not difficult to find that the electronics industry has entered winter, and there are no creative or innovative leading products coming out. However, in such an environment, Hefei has found a lot of interesting or retro electronic products, which can be regarded as bringing a trace of comfort to the electronics industry in the cold winter. So, in this issue, let's review the TOP5 products on the 2023 and non-annual dismantling lists.
TOP5 - Self-entertainment products: JBL K song microphone, singing little dome
JBL karaoke microphone
Dismantling highlights: two electret microphones in parallel, one large and one small, two parallel microphones can increase the amplitude of the received signal, so that the sensitivity of the microphone after parallel connection has increased, a very interesting design. Dismantling the BOM:
- Zhipu Xin stereo class D audio amplifier CS837857
- Jerry Bluetooth Audio SOC (Silk Screen: BP0A944)
- Nanxin lithium battery charge management chip SC8930A
- Shengbang Microelectronics headset driver chip SGM4917AQ
- JBL's high-performance DSP chips are custom-made
- CSC Headphone Signal Switching IC CH8865
Sing about the Little Dome
Disassembly highlights: Singbar's exclusive customized DSP sound processor chip (CB8988) supports 8 kinds of karaoke sound effects. Based on the big data research and development of 450 million users of the singing bar, we have a better understanding of the needs of entertainment singing users. Dismantling the BOM:
- 中科蓝讯蓝牙SoC CHEC14C0B
- Herun stereo audio power amplifier HT8699R
- Singbar's exclusive custom DSP sound processor chip CB8988
- Topmicro linear lithium battery charging chip TP4056
- Herun Stereo Headphone Amplifier HT4832
TOP4 - Auto parts products: Tongbao Technology ETC
Dismantling highlights: The reader circuit, communication module, and control module all rely on the only chip on the board, which is realized by the BK5863N integrated by Broadcom, and the integration degree is quite high. Dismantling the BOM:
- ETC system low-power SOC chip Broadcom integrated BK5863N
TOP3-Evaluation products: Edge2, Station M3
EDGE2
Review highlights: A single-board computer with exceptionally powerful performance and a wide range of features
Arrangement:
- 瑞芯微SoC RK3588S
- Rockchip power management unit RK806-1
- Two Hynix 4GB LPDDR4 RAM
- Samsung 32GB eMMC5.1 storage
- STMicroelectronics coprocessor STM32G031K6
- Tangming Technology USB2.0 HUB chip
- Zhengji WiFi6 wireless module AP6275P
Station M3
Review highlights: Geek experience, mobile console in your trouser pocket. Disposition:
- 瑞芯微RK3588S SoC，
- Two Micron 2GB LPDDR4 memory,
- Low-power CMOS real-time clock/calendar chip, BM8563 from Jiemao Micro;
- The built-in storage is 32GB eMMC (YMEC6A2TB1A2C3) of YMTTC;
- Shunxin stereo audio codec chip (ES8388);
- The core of the power supply management area is the Rockchip power management unit (RK806-1);
- The USB2.0 HUB chip of ThinkWise Technology, one out of four, is suitable for the application of docking stations, hubs and other products.
- Realtek Gigabit Ethernet chips (RTL8211F);
- Gigabit Ethernet transformer SG24301G of Jingweida Technology;
- The wireless network chip is Realtek's RTL8821CU, dual-band WiFi + wireless Bluetooth.
TOP2 - Motorola Retro Department: Motorola BB machine, Motorola Big Brother
Motorola BB machine
Dismantling highlights: the most primitive circuit, the appearance of the classic circuit in the 80s~90s. Dismantling the BOM:
The hardware of the receiving circuit includes antennas, amplifiers, mixers, oscillators, crystal filters, ceramic filters, intermediate frequency demodulators, voltage regulation, etc.
The main functional hardware of the decoding circuit includes linear holding components, CMOS holding components, microcontrollers, I/O expansion components, RAM, ROM, voltage expansion components, display screens, etc.
According to the current understanding, the Motorola BB is actually a user receiver, which consists of a superheterodyne receiver, a decoder, a controller and a display.
Motorola Big Brother
Dismantling highlights: textbook-level component layout and PCB routing, neat and pleasing to the eye. Dismantling the BOM:
- 摩托罗拉调制解调器芯片（SC432098CFU）
- Atmel's EPROM (AT27C010L-25JI) and EEPROM (AT28C64)
- 摩托罗拉芯片(SC380036FB)&(SC403956CFB)&(SC390207FB)&(99T30 SC79954FB)
- Motorola Power Amplifier(34T07-2.10M)
- Motorola PLL Synthesizer (MC145158-2)
- 摩托罗拉自己的器件（99T35 AARG9535）&（94A12 AAVL9609）
TOP1-Health monitoring products: Yuyue finger clip oximeter, Lepu finger clip oximeter, German mediasana finger clip oximeter
Product Highlights: It is people's sustenance and peace of mind for health in the epidemic. Hardware Solution:
- The Yuyue oximeter adopts the 8-bit single-chip microcomputer of domestic Songhan Technology and integrates the enhanced 8051 core;
- Lepu oximeter adopts Alpha Micro's wireless Bluetooth SoC and integrates a 32-bit Arm Cortex-M4 core;
- The small German oximeter uses Nuvoton's 32-bit microcontroller and integrates the Arm Cortex-M0 core.
brief summary
The above is the product dismantling of the non-hot TOP5 series in 2023. In many cases, the popularity of a product depends on the direction of the market at that time, for example, when the virus was raging, the finger clip oximeter became a fragrant bun; Well, the past is gone, and we look forward to seeing if 2024 will see a lot of innovative electronics come to the fore.