Current Status of the Communication Industry

The communication industry is currently undergoing rapid development, profoundly influencing our lives. The demand for high-speed and stable communication from users is growing increasingly. Technologies such as HFC data transmission, telephone communication, video modulation, and wireless base station transmission are continuously progressing. However, traditional chips face challenges in data processing and transmission. Clock synchronization issues lead to data errors and inefficiency, narrow analog output frequency bands and high phase noise affect signal quality, and high energy consumption and low integration increase costs and delay the development process. These have all become obstacles to the development of the communication industry.

Product Overview

After in-depth research and understanding of the actual needs of the communication industry, Corebai keenly captured the pain points of industry development and successfully launched the CBM99D57BQ chip. This chip is designed for high-end communication systems and integrates high-speed DDS, a 14-bit high-speed DAC, clock multiplication, digital filtering, and multiple DSP functions, becoming the core of the communication system. In wired systems, it can accurately achieve the up-conversion of baseband signals, ensuring the precise and efficient transmission of data. In the wireless domain, it provides a solid foundation for data processing in base stations, enhancing data throughput and transmission efficiency, strengthening system performance and reliability, while reducing costs and increasing efficiency, thus promoting the upgrading and innovation of the communication industry.

Core Technologies and Innovation Highlights

1、Precise Clock Architecture

The CBM99D57BQ chip features a built-in 1GSPS internal system clock and, in combination with an internal frequency divider and multiplier function with a reference frequency as high as 2GHz, constructs a precise and stable clock system. The accurate clock ensures the synchronization of data processing and transmission, significantly reducing signal transmission errors and jitter. It provides a solid time foundation for high-speed and reliable communication links, effectively improving transmission efficiency and reducing the bit error rate, guaranteeing the stable and efficient operation of the communication link.

2、High-Performance DAC

The built-in 1GSPS 14-bit DAC has its output phase noise strictly controlled at ≤−124dBc/Hz under the conditions of a 1kHz offset and a 400MHz carrier, and the narrowband SFDR exceeds 80dB. This enables the high-precision conversion of digital signals into analog signals, maintaining the purity and details of the signals, effectively withstanding complex electromagnetic interference, meeting the requirements of long-distance and large-capacity data transmission, and providing a stable signal foundation for scenarios such as high-definition video and massive data interaction.

3、Flexible and Programmable Characteristics

Equipped with 8 programmable profile registers, combined with a flexible interpolation factor ranging from 4 to 252, gain control DAC, and phase modulation function, as well as multi-chip synchronization capability, the chip can intelligently adapt according to communication scenarios and requirements. Whether it is diverse communication protocols or complex working conditions, it can accurately optimize the configuration, enhancing the flexibility, expandability, and compatibility of the system. It endows manufacturers with the ability to innovate rapidly, shortening the R&D cycle, reducing costs, and accelerating product launch.

Performance Parameters

1、Flexible Power Adaptation

Compatible with 1.8V and 3.3V power supply modes, it can be flexibly selected according to the system architecture and working conditions, optimizing the power supply layout, reducing energy consumption redundancy, and improving power utilization efficiency. This ensures the stable and efficient operation of communication equipment in various power supply environments, achieving significant energy conservation and efficiency improvement.

2、Efficient Data Processing

The 250MSPS input data rate and the 400MHz analog output frequency complement each other, realizing high-speed data capture and processing and smooth signal output. It broadens the spectrum utilization range, ensuring the efficient flow of multi-band and large-capacity data, strongly supporting the communication system to meet the needs of massive data transmission and enhancing the overall transmission efficiency.

3、Low Noise and Energy Saving

The ultra-low output phase noise improves signal quality, reducing transmission attenuation and distortion. The hardware/software collaborative power-saving function intelligently switches modes according to the load, achieving deep energy conservation and consumption reduction. This not only extends the battery life and service life of communication equipment but also reduces operating costs and environmental burdens, realizing green and efficient communication.

4、Highly Integrated Functions

Integrated with RAM cache to accelerate data processing, multi-chip synchronization ensures collaborative work, seamless docking with Blackfin SPORT simplifies integration, gain control DAC precisely regulates signal strength, and the internal oscillator enhances clock stability and reduces external interference. It comprehensively improves the functionality, reliability, and ease of use of the chip, optimizing the overall performance of the system.

Application Areas

1、Updating of HFC Networks

In the application of HFC networks, the CBM99D57BQ chip promotes the upgrading of data, telephone, and video modems. Precise modulation and efficient up-conversion improve network bandwidth utilization and transmission rate, providing stable and high-speed network support for multiple services such as smart homes and online education, optimizing user experience and promoting the intelligent development of HFC networks.

2、Enhancement of Wireless Base Stations

In wireless base station transmission, as the core of signal processing in 5G and future network base stations, the chip efficiently processes massive user data and high-speed signal modulation and transmission. It enhances signal coverage and anti-interference ability, ensuring high-quality communication in complex environments, accelerating the process of the Internet of Everything, and injecting strong impetus into the close connection of the digital world.

3、Improvement of Broadband Communication

In the field of broadband communication, the chip optimizes the signal spectrum and transmission quality, achieving high-speed transmission over extremely long distances. It strongly promotes the development of enterprise data interaction, cloud service transmission, and high-definition live broadcast services, leading broadband communication to a new realm of high speed, stability, and intelligence, and enhancing the service level and competitiveness of the industry.

4、Optimization of Voice Quality in Internet Telephony

In the application of Internet telephony, the chip accurately digitizes and modulates and transmits voice signals, strongly suppressing noise and distortion and restoring a clear and smooth calling experience. It breaks the limitations of time and space, improving the efficiency and quality of remote communication, reshapin.