General Overview

Oscilloscopes are indispensable precision measuring instruments in the field of electronics. Through intuitive waveform display, they convert the temporal variation of electrical signals into visual graphs, making complex electronic phenomena easy to understand. Used in scientific research, industrial testing, and communications, oscilloscopes play an irreplaceable role in helping engineers and technicians analyze signal details, pinpoint issues, and provide critical technical support for innovation.

I. Technical Bottlenecks Needing Resolution

1. Limited Performance Metrics

 Analog Front-End & ADC Constraints: Achieving high bandwidth and matching sampling rates in high-frequency bands is challenged by analog front-end and ADC chip technology.

 Vertical Resolution Limits: ADC precision and analog circuit noise restrict improvements in vertical resolution during weak signal measurement.

 Storage Depth Tradeoffs: Expanding storage depth introduces speed and cost challenges.

2. Inadequate Signal Processing

·Complex signal handling (multi-carrier, high-speed serial signals) is insufficient, with real-time processing prone to delays and 卡顿 (lag) due to large data volumes and algorithmic complexity.

3. Integration Challenges

 Multi-Channel Synchronization: Channel synchronization accuracy and crosstalk issues are prominent in multi-channel integration.

 Multi-Function Fusion: Coordinating functions, allocating resources, and designing circuits pose challenges in integrated systems.

II. Corebai Solutions

Corebai addresses these bottlenecks with optimized analog front-ends and ADC chips, offering the following products to enhance oscilloscope performance:

ADC (High-Speed Analog-to-Digital Converter)

In oscilloscopes, high-speed ADC chips precisely convert analog signals to digital form. Their high sampling rates and precision ensure detailed capture of high-frequency signals, enabling accurate waveform reconstruction.

USB (USB Controller)

USB controller chips act as a communication bridge between oscilloscopes and external devices, enabling efficient data transmission and sharing for in-depth signal analysis.

RS232 (Interface Chip)

RS232 chips support low-speed, long-distance communication, allowing oscilloscopes to connect with legacy equipment and expand application scenarios, especially in industrial environments.

 

Oscilloscope Application Block Diagram:

Recommended Products

 ADC: CBM08AD1500

 USB Controller: CBM9002

 RS232 Interface: CBM3232

Product Features

CBM08AD1500 High-Speed ADC

 High Sampling Rate: 1.5GSPS sampling rate with selectable SDR/DDR output clocks. In dual-edge sampling (DES) mode, it samples at 3GSPS via a single analog channel, ideal for radar and communication receivers requiring ultra-fast signal capture.

 8-Bit Resolution: Balances speed and precision for applications prioritizing high-speed signal conversion over extreme accuracy.

 Low Power Consumption: CMOS process ensures low power draw, critical for portable/battery-powered devices.

 Minimal Linear Error: Precise circuit design reduces conversion errors, enhancing signal fidelity.

 Automatic Calibration: 3-wire interface enables gain/offset calibration and inter-channel clock matching, minimizing external adjustment needs.

 Flexible I/O Modes:

 Differential analog input (AC/DC coupled).

 AC-coupled clock input with internal DC bias.

 LVDS output (32-bit parallel) for high-speed, low-noise data transfer.

 Pin-Compatibility: Direct replacement for TI’s ADC08D1500, simplifying design migration and supply chain stability.

CBM9002 USB Controller Chip

 Enhanced Processing: 8051 core operating at 48MHz/24MHz/12MHz (3x faster than standard 8051), handling complex control tasks efficiently.

 USB 2.0 Compliance: Supports high-speed (480Mbps) and full-speed (12Mbps) modes, with USBIF certification for reliable data transfer in applications like data acquisition.

 Rich Peripherals: 2 UARTs, 40 bidirectional I/Os, and support for I2C/SPI, enabling easy integration with sensors and external devices.

 Large On-Chip Memory: 16KB code/data RAM + 0.5KB data RAM reduces reliance on external storage.

 Low Power Design: Suspend mode ≤1mA, active mode ≤85mA, extending battery life in portable devices.

 High Integration: Monolithic design minimizes external components, reducing system cost and size.

 Domestic Replacement: Pin-compatible with Cypress CY7C68013A, offering competitive performance and supply chain control.

CBM3232 RS232 Interface Chip

 High Data Rate: Up to 120Kbps, future-proofing for emerging communication needs.

 ESD Resistance: ±15KV air discharge / ±8KV contact discharge (CBM3232ATS16: IEC61000-4-2 compliant, ±12KV contact / ±15KV air), enhancing interface reliability.

 Wide Voltage Range: Operates from 3.3V to 5.5V, adapting to diverse power environments.

 Simplified Design: Only five 0.1μF capacitors required for 3.3V operation, reducing BOM cost and design complexity.

 Standard Compliance: TIA/EIA-232 compatible, ensuring interoperability with legacy RS232 devices (laptops, printers, PDAs).

 Industrial Temperature Range: -40°C to 85°C (select models), suitable for harsh industrial and automotive applications.

III. Application Scenarios

Corebai’s oscilloscope solutions leverage its R&D strength to deliver precise signal processing, empowering advanced measurements across industries:

1. Electronic Integrated Circuits

·Observe voltage/current waveforms at circuit nodes, analyze amplitude/frequency parameters, and debug/tune circuit performance.

2. Communication Engineering

·Validate modulation/demodulation processes, test protocol compliance, and measure RF signal parameters (power, frequency).

3. Power Systems

·Monitor power signal waveforms, assess power quality, and debug power electronics equipment.

4. Automotive Electronics

·Diagnose vehicle circuit faults, optimize component R&D, and conduct EMC testing.

5. Education & Research

·Essential for teaching signal theory and circuit principles; supports advanced research like quantum physics experiments and bioelectrical signal measurement.