Achieving a breakthrough! Jinghua Microelectronics insists on making "Chinese chips"
The "2021 Hard-core Chinese Chip" selection event hosted by Xin Shiye is in full swing. More than 100 domestic chip companies have signed up to participate in the selection, and more than 200 products will meet with a large number of electronic engineers.
We are now using the "cloud exhibition" to fully display Chinese chip products and enterprises for you. At the same time, please cast your precious vote for the advancement of Chinese chips!
Online voting time
August 15 - September 14
Come and support the Chinese chip you support!
The best domestic signal chain chip of 2021
The Most Promising IC Design Company in 2021
2021 Excellent Domestic Substitution Performance Enterprise
2021 Best IC Enterprise Manager Award
2021 Best IC Design Team Award
Hangzhou Jinghua Microelectronics Co., Ltd. was established in 2005. It is committed to the design and sales of high-performance, high-quality mixed-signal integrated circuits. With its innovative design capabilities of high integration and high reliability and advanced quality assurance system, it provides users with one-stop professional integrated circuit and product application solution design.
晶华微电子核心技术团队来自美国,拥有先进的模拟和数字集成电路设计、工艺、测试、可靠性技术、质量管理等丰富经验及国际化视野。多年来,公司坚持自主创新,已拥有低功耗和低噪声放大电路、不同结构的模/数及数/模转换器、电压基准源、8位和32位MCU、混合信号SoC等多项核心技术,并申请获得多项专利/软著。公司自主研发的工控HART通讯控制器芯片及4~20mA电流DAC打破工控行业国外垄断,实现国内突破。
Through years of technology accumulation and business development, the company's general-purpose analog integrated circuits and series of dedicated SoC products have excellent performance and reliable quality. The main products include medical electronic chips, smart health scale chips, industrial control and instrument chips, smart sensing chips, etc., which are widely used in many fields such as medical health, pressure measurement, industrial control, instrumentation, smart home, etc. Among them, the high-precision, low-power 24Bits ADC + 8Bits MCU SoC has always maintained an important position in the domestic electronic scale and infrared temperature gun market, with annual sales of hundreds of millions of chips.
Currently, the company is headquartered in Hangzhou, and has established a branch in Shanghai and a subsidiary in Shenzhen. Its business has covered the whole country, and its products are exported to the United States, Australia, Germany, Turkey, India, Sweden, Israel, etc.
In the future, the company will continue to focus on high-precision ADC and analog signal processing combined with 32-bit MCU technology, delve into the fields of smart healthcare, smart cities, smart manufacturing, industrial Internet of Things, etc., and reach strategic partnerships with more companies to promote the company's leapfrog development and provide society with excellent products and services.
(Video source: Core Master·“Hardcore Core Voice” interview)
Product 1: Industrial pressure/temperature sensor signal conditioning and transmission dedicated SoC chip (model: SD2322)
①Product performance:
SD2322 is a signal conditioning circuit for resistive or voltage type sensor applications. It integrates two 24-bit ADCs, which can be used for main signal measurement and auxiliary temperature signal measurement respectively. The main ADC supports EMI detection to reduce the impact of interference signals. It integrates a 32-bit programmable MCU to support customer development and can realize online debugging through serial mode. It integrates a 16-bit DAC, supports proportional voltage, absolute voltage, 4-20mA current and PWM output, and the analog output allows 10% over-range. Flexible serial interfaces SPI, UATR, I2C, OWI, among which the OWI interface can communicate in a single line with the help of the power line without additional lines. A variety of constant current source and constant voltage source excitation outputs meet the measurement requirements of thermal resistors, thermocouples, bridge pressure sensors, etc. The 6.5V~40V wide power supply voltage is suitable for a variety of industrial field application requirements.
• High precision, low noise, low power consumption, small size sensor signal conditioning circuit
• Two independent analog front-end (AFE) signal chains, each consisting of:
■ Low noise programmable gain amplifier
■24-bit Σ-Δ analog-to-digital converter (ADC)
■Programmable ADC output rate
■50 Hz/60 Hz synchronous noise suppression
■EMI detection function
• 16-bit DAC with built-in programmable gain amplifier, supporting output:
■Three-wire proportional voltage and absolute voltage output, 10% over-range allowed
■Two-wire 4-20mA current output
•Built-in high voltage power management module, supports 6.5~40V wide voltage power supply
• Programmable voltage source excitation
• Two programmable matched current source excitation
• Built-in high linearity temperature sensor, external temperature sensor can also be used
• Built-in low temperature drift reference, typical temperature drift 10ppm/℃
• Built-in microcontroller to support users to develop and implement calibration compensation algorithms
■ 32nd place: MCU
■Built-in 3.6864MHz RC oscillator, error less than ±1% after calibration
■With hardware multiplier
■Support serial line download and debugging
• Memory
■32k Bytes MTP
■2k Bytes SRAM
■512 Bytes EEPROM
• On-chip peripherals
■UART、I2C、SPI
■OWI communication (communication via power line)
■16-bit PWM controller
■10-pin multi-function GPIO
■2 general timers
■Multi-channel DMA and interrupt controller
•development tools
■Mature compiler and simulation tools
•Self-diagnosis function
•Supports 40V high voltage direct input and also supports external JFET controller
• Operating temperature range: -40℃~125℃
②Price competitiveness:
Benchmarking against European and American ADI and TI chip products, and integrating more functions, one SoC chip can realize the functions of two chips, European and American ADC+MCU, with obvious price advantage.
③Technological innovation:
1) Through coarse-fine sampling technology and rail-to-rail technology, a low-speed, high-precision Σ-Δ ADC with low noise and high input impedance is realized, where the ADC typical ENOB = 20.4Bits@10sps (Gain = 128).
2) Adopting new R2R DAC and novel calibration technology, high-precision, low-temperature drift and low-cost calibration of DAC can be achieved at room temperature.
3) The low-noise, high-input impedance preamplifier, combined with the company's own non-patented offset automatic correction function, can tolerate and correct abnormally large offset deviations of peripheral sensors, effectively reducing material losses for complete machine manufacturers.
4) Built-in EMI detection function module with patented technology can realize intelligent diagnosis and filtering of interference data, improving system reliability.
5)内置Chopper结构的高阶曲率补偿Bandgap电路,实现低噪声低温漂电压基准源,常温校准即可实现温漂系数小于10ppm/℃(@-40~85度范围内)。显著拓展了最终产品方案的使用温度范围,让产品更具竞争力。
6) Adopt optimized RC oscillator circuit structure and normal temperature calibration technology to realize high-precision clock signal that complies with UART communication protocol (3.6864MHz RC-OSC, deviation after calibration <±0.5%@normal temperature, deviation <±1.5%@-40℃~125℃).
④Customer Service:
It provides complete technical support and can provide complete solutions for customer application development; mature 32-bit CPU core related IDE tools, support C language programming; provide library functions and application examples, large MTP space is conducive to online maintenance and update programs of terminal products, built-in 16Bit high-precision 4~20mA current loop DAC related important circuits, can easily realize 2-wire loop power supply applications, etc., greatly improving the cost performance of terminal products.
⑤Application cases:
1) Application areas include:
Pressure Sensors and Transmitters
RTD, Thermocouple and Two-wire RTD Temperature Transmitters
Level Meters and Flow Meters
Weighing scales, load cells and strain gauges
Industrial Automation and Process Control
Intelligent precision detection system
Medical Devices
2) A typical pressure transmitter application case:
Taking the pressure transmitter with external sensor temperature compensation as an example, it realizes two-wire 4-20mA output and supports HART communication, and can expand LCD display and programming buttons.
Product 2: 32-bit general-purpose microprocessor with built-in 24-bit high-precision ADC (SD93F115)
①Product performance:
This chip is a 32-bit MCU SOC product with LCD driver and 24-bit high-precision ADC, providing 120KB Flash space for storing user programs.
This chip is a 32-bit system chip that can be accessed by byte, half word (16 bits), and full word (32 bits). The system clock is 12MHz by default when powered on. Different clocks can be selected as the system clock through register configuration, and the highest configurable clock is 24MHz.
This chip provides four working modes, allowing users to get the best choice in terms of work efficiency and energy consumption. The four modes are: normal working mode, standby (WAIT) mode, sleep (DOZE) mode and deep sleep (STOP) mode.
• High-precision ADC, ENOB = 18.6bits@8sps (Gain = 256), 4 differential channels or 8 single-ended channels
• Low noise, high input impedance preamplifier, 1, 4, 8, 16, 32, 64, 128 and 256 times gain selectable, with offset correction function
•Built-in 12-bit SAR ADC with self-calibration function, optional sampling time and working mode
•32位MCU(24MHz max),120k Bytes FLASH,8k Bytes Boot,8k Bytes SRAM
•Built-in high frequency RC oscillator, 24MHz, accuracy can reach ±1% after calibration
•Built-in low frequency RC oscillator, 32kHz
•Supports high frequency crystal oscillator, 8~24MHz
• Support low frequency crystal oscillator, 32.768kHz
• With RTC module, it can calculate year, month, week, day, hour, minute and second, and can automatically calculate leap year
• With LCD driver module, it can support up to four driving modes: 44SEG * 4COM, 43SEG * 5COM, 42SEG * 6COM and 40SEG * 8COM; it has ultra-low power consumption and large driving capability design, and contains a programmable boost module, which can maintain high brightness display under low voltage conditions; the driving voltage is optional, 2.7~5.2V
•Built-in sensor excitation output, output voltage selectable, 2.4~4.5V, step size is 0.3V
•Built-in Burnout Detect Current Source
•Can output 1.2V reference
• Built-in sine wave generator, output frequency optional: 5kHz, 50kHz, 100kHz and 200kHz, supports eight-electrode BIA fat measurement
• Built-in two operational amplifiers OPA and OPB
Built-in low voltage detection circuit, including an 8-bit DAC and a rail-to-rail input comparator, to achieve flexible battery detection and touch button detection functions. Voltage detection range 2.0~5.3V
• Built-in silicon temperature sensor, single-point calibration, supports automatic forward and reverse measurement
• Built-in up to 2 UART communication interfaces, RXD0/RXD1 falling edge automatically wakes up the MCU when in standby mode
•Built-in 1-way I2C communication interface
•Built-in 1-way SPI communication interface
• Built-in 2 independent 16-bit PWM/PDM outputs
•Built-in 1-channel capture input port CCP
•Built-in 16-bit Timer0/1/2 for timing interrupts, etc.
•Built-in buzzer output driver, the driver clock and frequency can be set
• 2 external interrupts, INT1~0
•7 key interrupts, KEY6~0
• All digital input ports have Schmitt trigger inputs, and you can choose whether to use a pull-up resistor. The pull-up resistor value is 50kΩ
• Operating voltage range: 2.4~5.5V
• Operating temperature range: -40~85℃
②Price competitiveness:
Benchmarking against European and American ADI, TI and Taiwanese manufacturers, our chip products integrate more functions. One SoC chip can realize the functions of two chips, European and American ADC + MCU, with obvious price advantages.
③Technological innovation:
1)拓展性地采用两组/两类模数转换器,显著扩展客户的应用场景范围。其中低速高精度Σ-Δ ADC的ENOB=18Bits@8sps (Gain = 128)。而高速中等精度的SAR ADC性能可达ENOB=12Bits@0.8Msps。
2) Adopt optimized RC oscillator circuit structure and normal temperature calibration technology to realize high-precision clock signal that complies with UART communication protocol (24MHz RC-OSC, deviation after calibration <±0.5%@normal temperature, deviation <±1.5%@-40℃~85℃).
3) The low-noise, high-input impedance preamplifier, combined with the company's own patented offset automatic correction function, can tolerate and correct abnormally large offset deviations of peripheral sensors, effectively reducing material losses for complete machine manufacturers.
4) Built-in EMI detection function module with patented technology can realize intelligent diagnosis and filtering of interference data, improving system reliability.
5)内置Chopper结构的高阶曲率补偿Bandgap电路,实现低噪声低温漂电压基准源,常温校准即可实现温漂系数小于10ppm/℃(@-40~85度范围内)。显著拓展了最终产品方案的使用温度范围,让产品更具竞争力。
6) Supports 8-electrode BIA body fat measurement, realizing resistance and phase angle measurement of human equivalent impedance, achieving more accurate analysis of human health parameters.
④Customer Service:
Complete technical support and can provide complete solutions for customer application development;
Mature 32-bit CPU core-related IDE tools, supporting C language programming;
Providing library functions and application examples and a larger Flash space are conducive to online maintenance and program updates of terminal products.
⑤Application cases:
1) Application areas include:
In the fields of blood pressure monitor, fat scale, blood glucose meter and infrared temperature measurement;
It can also be used as a general-purpose 32-bit MCU chip.
2) A typical blood pressure meter application based on SD93F115 chip:
Figure SD93F115-JQS blood pressure monitor typical application diagram
Reasons to vote for Jinghua Microelectronics:
Adhere to independent research and development, forward design, and master a number of core technologies and patents for analog signal processing.
In the field of industrial control, the foreign monopoly of HART chips has been broken, and body scales, infrared temperature measurements, and multimeter chips have been fully replaced by domestic products.
The company is named Jinghua, indicating that we are an enterprise of the Chinese nation, and we are committed to making China's own chips. This patriotic spirit has been passed down in Jinghua Microelectronics for 17 years.
Reasons to vote for this team:
1. In 2005, when he was 50 years old, Dr. Luo Weishao resolutely returned to China from the United States and founded Hangzhou Jinghua Electronics Co., Ltd., determined to contribute his own strength to the development of China's integrated circuits.
2. Dr. Luo Weishao brought internationally advanced R&D technology, international vision and many years of experience in analog chip R&D. While focusing on the R&D of analog signal processing chips, he personally taught and guided, and trained a large number of professional talents for the domestic integrated circuit industry.
3. For 17 years, Jinghua Micro has insisted on independent research and development and forward design, and has mastered a number of core technologies and patents in high-precision ADC and high-integration SoC chips.
4. HART modem chip breaks the foreign monopoly and achieves a breakthrough in domestic industrial control chips.
5. Body scales, multimeters, HART chips, infrared temperature measurement signal processing chips, etc., occupy an important domestic share (some exceeding 50%).
6. From 2020 to 2021, when the COVID-19 outbreak occurred, Jinghua Micro provided 50% of the domestic infrared temperature measurement chips in an emergency, and has been shipping large quantities and stably at regular market prices, without hoarding goods or selling at a fair price. It has made great contributions to the production of domestic epidemic detection products and won the China Core Excellent Anti-epidemic Chip Product Award and many awards from governments and associations at all levels.
The company is named Jinghua, indicating that we are an enterprise of the Chinese nation, and we are committed to making China's own chips. This patriotic spirit has been passed down in Jinghua Microelectronics for 17 years.
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