The LeCroy MSO 44XS-A is a mixed-signal oscilloscope combining 4 analog channels and 18 digital channels for embedded system design, debugging, and signal analysis. With 400 MHz analog bandwidth, 2.5 GS/s sample rate, and up to 10 Mpts/ch record length, it delivers the acquisition depth and speed required for complex embedded applications. The 10.4-inch color touch screen and advanced triggering architecture streamline troubleshooting across analog and digital domains simultaneously.

Technical Specifications

Analog Channels (4)
• Bandwidth: 400 MHz
• Sample Rate: 2.5 GS/s
• Record Length: 5 Mpts/ch (standard), 10 Mpts/ch (optional)
• Vertical Resolution: 8-bit
• Vertical Sensitivity: 2 mV/div to 10 V/div (1 MΩ); 2 mV/div to 1 V/div (50 Ω)
• Vertical Accuracy: ±1.0% of full scale (typical); ±1.5% of full scale ≥ 10 mV/div (warranted)
• Input Impedance: 1 MΩ || 16 pF or 50 Ω selectable
• Maximum Input Voltage: 5 Vrms (50 Ω); 400 V max (1 MΩ)
• Input Coupling: AC, DC, GND
• Bandwidth Limit: 20 MHz, 200 MHz

Digital Channels (18)
• Maximum Input Frequency: 250 MHz
• Sample Rate: 1 GS/s per channel
• Record Length: 10 Mpts per channel
• Input Impedance: 100 kΩ || 5.0 pF
• Maximum Input Voltage: ±30 V non-destruct
• Threshold Groupings: D0–D8, D9–D17
• Threshold Levels: TTL, ECL, CMOS (2.5 V, 3.3 V, 5 V), PECL, LVDS, or user-defined

Horizontal & Trigger
• Timebase Range: 200 ps/div to 1000 s/div (roll mode from 500 ms/div)
• Timebase Accuracy: ≤ 5 ppm @ 25 °C (typical)
• Trigger Hold-off: 1 ns to 20 s or 1 to 1,000,000,000 events
• Trigger Types: Edge, Glitch, Width, Logic (Pattern), TV (NTSC, PAL, SECAM, HDTV 720p/1080i/1080p), Runt, Slew Rate, Interval, Dropout, Qualified (State or Edge)
• Pre-trigger Delay: 0–100% of full scale
• Post-trigger Delay: 0–10,000 divisions

Measurement Capabilities
• Up to 6 simultaneous parameters
• Gated measurements supported
• Parameters: Amplitude, Area, Delay, Duty, Fall Time, Frequency, Maximum, Mean, Minimum, Overshoot+/−, Period, Peak-Peak, Phase, Rise Time, RMS, Skew, Standard Deviation, Width+

– Key Features

• Dual-domain analysis with synchronized analog and digital capture
• Flexible trigger architecture supports pattern, state, and edge-qualified triggering
• High-resolution touch interface for rapid navigation and control
• Selectable bandwidth limits reduce noise in low-frequency measurements
• Configurable digital thresholds for mixed-voltage logic families

– Typical Applications

• Embedded system validation and protocol debugging
• Digital-analog interface characterization
• Low-speed serial and parallel protocol analysis
• Power supply and clock distribution troubleshooting

– Compatibility & Integration

Accepts AC, DC, and GND input coupling modes. External trigger input accepts EXT/10 (±4 V) or EXT (±400 mV) signals.