MSO7000X-AUDIO

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UNI-T MSO7000X Options Series

MSO7000X-AUDIO – Digital Audio Protocol Decode Option (I2S, LJ, RJ, TDM)

🎧 Embedded Audio Bus Decoding for Development & QA

The MSO7000X-AUDIO unlock equips your UNI-T MSO7000X Series oscilloscope with full trigger and decode support for today’s most widely used digital audio protocols: I²S, Left Justified (LJ), Right Justified (RJ), and TDM. Whether you're designing codec interfaces, debugging DSP chains, or verifying audio bus timing in embedded systems, this option gives you the tools to visualize and validate audio frame content in real time.

Designed for developers, test engineers, and educators working in consumer electronics, automotive infotainment, and embedded audio systems, this software unlock brings structure, timing, and content decoding together on a single screen.

🔍 Included Protocols

Protocol	Description & Use Case Example
I²S (Inter-IC Sound)	Standard audio interface for transmitting stereo PCM data between codecs, DSPs, and microcontrollers. 📌 Verify LRCK, BCLK, and data alignment in real time.
Left Justified (LJ)	Variant of I²S with data aligned to the left of word clock. 📌 Used for reduced-latency codec interfaces and simple playback chains.
Right Justified (RJ)	Timing scheme with MSB delayed to the right. 📌 Common in legacy and specialized audio ICs.
TDM (Time Division Multiplexed)	Supports multichannel audio over a single serial stream. 📌 Used in automotive head units, HDMI audio extraction, and pro audio gear.

🧠 Real-World Use Cases

✅ Codec Interface Debugging

Trigger on BCLK and LRCK edges to observe bit alignment and detect audio glitches or silence frames in I²S and LJ-based systems.

✅ TDM Bus Verification

Decode multiple audio channels carried over TDM. Confirm data slot timing, channel mapping, and signal integrity across all frames.

✅ Embedded Systems Audio Integration

Debug real-time audio streaming between SoCs, FPGAs, and DACs. Verify timing relationships and ensure clean synchronization with other serial buses.

✅ Voice Processing QA

Visualize speech waveform delivery over digital audio buses. Confirm zero-latency switching or mixing between inputs, and verify proper routing in multi-mic arrays.

🔧 Features & Capabilities

Trigger on word select (LRCK), BCLK, or specific data patterns
Live waveform decoding with bus field overlays for timing alignment
Event table export for batch audio packet inspection and verification
Multi-channel slot decoding on TDM for full-channel coverage
Overlay alongside analog waveform data to correlate audio content with signal anomalies
Combine with SENT, CAN-FD, or UART for mixed-signal system validation

🛠️ Ideal Applications

Consumer audio electronics R&D
Automotive infotainment system testing
Pro audio and recording interface design
Digital signal processing (DSP) validation
Audio codec bring-up and integration
Educational labs on digital sound and serial buses

🔗 Related Unlock Options

✅ MSO7000X-SENT → – Sensor protocol decoding for automotive audio control units
✅ MSO7000X-PWR → – Power analysis tools to monitor clean supply rails for audio ICs
✅ MSO7000X-AERO → – MIL/ARINC decoding for aviation audio systems
✅ MSO7000X-BND → – Complete software bundle including all serial protocols