Zongxing Technology has officially launched a new upgraded version of the ZT1826 chip. This milestone innovation not only marks a new stage of development for narrowband communication technology, but also leads the exploration of unprecedented new fields in narrowband communication with its excellent performance and wide coverage of application scenarios, especially in industries that have extremely high requirements for communication stability and data transmission efficiency, such as industrial automation control, smart grids, and network less communication.

1、 Domestic substitution

On December 3, the Ministry of Commerce issued the announcement on strengthening the export control of relevant dual-use items to the United States, and the joint statement of China Semiconductor Industry Association, China Automobile Industry Association, China Internet Association, and China Communications Enterprise Association:

American chip products are no longer safe or reliable

Chinese related industries will have to be cautious in purchasing American chips

In the current complex and ever-changing international environment, ensuring national security and interests, and fulfilling international obligations such as non-proliferation have become important goals of China's export control policy. The latest announcement released by the Ministry of Commerce clarifies the control measures for dual-use items exported from the United States, demonstrating China's determination and actions in the high-tech field to independently control and replace domestic products. In this context, Zongxing Technology actively responded to the national call and launched a new domestically produced, long-distance narrowband communication chip - the upgraded version ZT1826. This chip not only has excellent performance, but also serves as the only domestic substitute for a certain imported chip in multiple scenarios.

2、 Unique functional advantages of the newly upgraded ZT1826 chip

The newly upgraded version of ZT1826 chip is an important achievement of Zongxing Technology in the LPWAN2.0 field. Its predecessor ZT1826 chip has already made a name for itself in the "2023 Most Promising IC Design Enterprise Award" and won the annual "Hardcore Chip" award. The original ZT1826 has a sensitivity of up to -149dBm, supports a rate range of 20bps-200kbps, different power consumption modes, as low as microampere level, suitable for 25-1020MHz wireless applications, and can meet various IoT scenarios such as logistics management, environmental monitoring, and smart cities.

The newly upgraded ZT1826 has further added multiple functions on this basis, not only supporting bidirectional Advanced M-FSK ® Communication and showcasing unique advantages such as industrial grade performance, wider speed range, and software defined programmability.

HARQ function: This chip introduces the new feature of HARQ (Hybrid Automatic Repeat reQuest), which significantly improves the reliability and stability of communication through intelligent retransmission mechanism. The sensitivity can be increased by 6dB, making it particularly suitable for data transmission in complex environments such as industry.

Advanced PSK function: The chip introduces a new modulation technology DPSK, namely differential PSK modulation, which supports BPSK, QPSK, and 8PSK modulation and demodulation. The 100kHz bandwidth can transmit up to 300kbps rate. A typical 100kHz bandwidth QPSK modulation rate is 100kbps, and the sensitivity can reach -110dBm. This technology also inherits the Advanced M-FSK scalable technology, which can select different rates based on bandwidth and modulation parameters to meet various scene requirements.

Support for voice transmission function: The chip adopts a flexible 'DSP+ASIC' architecture, with software defined programmability, and supports direct encoding and modulation of audio signals by DSP cores. It can be widely used in voice calls and audio transmission scenarios such as walkie talkies and wireless microphones. In the walkie talkie scenario, the chip supports a typical speed of 9.6kbps (sensitivity up to) -125dBm@PER =1%), achieving smooth voice communication while extending sound transmission; In wireless microphone scenarios, it supports high-quality audio and high-speed (up to 300kbps) encrypted transmission.

3、 Wide industry application prospects

Industrial grade applications: In response to the special needs of the industrial field, the newly upgraded ZT1826 chip has excellent anti-interference ability and stability, and can operate stably in harsh industrial environments. Its sensitivity is as high as -149dBm, supporting a larger speed range of 20bps-200kbps, as well as different power consumption modes, as low as microampere level, perfectly suitable for 25-1020MHz wireless applications. Make it an ideal choice for low-power wireless small data acquisition and control fields such as industrial control, instrumentation, and wireless data acquisition.

Grid/New Energy: In the field of power Internet of Things, the application of the newly upgraded ZT1826 chip significantly enhances the ability of remote monitoring and data acquisition of power equipment, thereby improving equipment operation efficiency and safety. We have developed specialized protocols and system equipment for the three key links of low-voltage distribution, transmission lines, and substation IoT in the power Internet of Things to meet the needs of different scenarios. This chip can provide stable and reliable communication support for power lines in signal free areas, effectively meeting the demand for domestic substitution.

Wireless communication/voice intercom: In the field of wireless communication, the newly upgraded ZT1826 chip has demonstrated strong application potential. Especially in the walkie talkie industry, this chip supports a typical speed of 9.6kbps (sensitivity up to) -125dBm@PER =1%) ensures the smoothness of voice communication and significantly extends the sound transmission distance, making the walkie talkie perform better in emergency communication, dispatch and command scenarios. In addition, in terms of wireless communication on mobile phones, the application of the ZT1826 Plus chip allows mobile phones to achieve voice communication and data transmission through point-to-point or local networks even in outdoor, mountain climbing, and other environments with no network coverage or poor network conditions, effectively ensuring the security and privacy protection of communication data.

Satellite ground communication: With the continuous advancement of satellite communication technology, the demand for low-power and long-distance communication chips in the field of satellite ground communication is becoming increasingly urgent. The application of this chip can assist ground equipment in collecting data and achieve stable and efficient communication connections between satellites and ground equipment over distances of 400 kilometers or even further through low orbit satellite communication.

In the current complex and ever-changing international situation, domestic substitution has become a core strategy in China's high-tech field. The newly upgraded version ZT1826 chip launched by Zongxing Technology, with its significantly improved performance and functionality, can be widely applied in multiple industry fields. It is not only a strong response to this national strategy, but also an important driving force for the rise of the domestic chip industry. We believe that in the near future, domestically produced chips will occupy a more important position in the global market, providing strong guarantees for China's technological development and national security.

Zongxing Technology will continue to be committed to technological innovation and product research and development, contributing more to the independent and controllable development of China's high-tech industry and the process of domestic substitution. At the same time, we also look forward to working together with more partners to create a better future for the domestic chip industry.