### Overview of MSO2 (Tektronix 2 Series Mixed Signal Oscilloscope) The **Tektronix MSO2** (Series 2) is a compact, portable mixed-signal oscilloscope. Its architecture is distinct because it integrates the performance of a benchtop lab scope into a thin, battery-operable form factor. --- ### Key Electronic Components & Architecture The internal electronics are categorized into the front-end signal conditioning, the processing engine, and the user interface modules. | Component Group | Specific Part/Technology | Function | | :--- | :--- | :--- | | **Front-End ASIC** | Tek-Custom "TekVPI" | Conditions incoming analog signals; manages gain, offset, and impedance. | | **ADC** | 8-bit / 10-bit Digitizers | Converts analog waveforms to digital data at up to 2.5 GS/s. | | **Processing Unit** | ARM-based SoC / FPGA | Handles the "waveform update rate" and math functions (FFT, decoding). | | **Digital Inputs** | P6316 Logic Probe Connector | Provides 16 digital channels for mixed-signal analysis. | | **Power Module** | Dual-slot Hot-swap Batteries | Optional DC-input circuitry for field portability. | --- ### Technical Specifications of Internal Electronics The electronic design allows the device to maintain a low noise floor despite its small size. 1. **Analog Channels:** Available in 2 or 4 channel configurations. 2. **Bandwidth Filters:** Integrated hardware filters allow for 70MHz, 100MHz, 200MHz, 350MHz, and 500MHz limits. 3. **Signal Path:** Uses a high-speed digital backplane to transfer data from the ADCs to the memory buffer, ensuring minimal lag on the capacitive touchscreen. 4. **Connectivity I/O:** * **USB 2.0 Host/Device:** For data storage and PC control. * **Ethernet (LAN):** For remote LXI control. * **VESA Mount Interface:** Electronic grounding points integrated into the back chassis. --- ### The MSO Capability (Mixed Signal) The "Electronic Brain" of the MSO2 includes a dedicated digital trigger system. Unlike older scopes that used analog comparators, the MSO2 processes digital thresholds in the digital domain, allowing for more precise triggering on complex serial patterns (I2C, SPI, UART, etc.). ---