Description
The NI PXIe-1491 HDMI Protocol, Audio, and Video Analyzer, with part number 151958D-01L, is categorized under Audio/Video Instruments. This sophisticated instrument offers a comprehensive suite of features tailored for HDMI protocol, audio, and video analysis. It supports 8 audio channels with an audio sample rate ranging from 32 kHz to 192 kHz, ensuring high fidelity and precision in audio signal analysis.
In addition to audio capabilities, the NI PXIe-1491 also features 2 ARC (Audio Return Channel) channels, with ARC sample rates of 32, 44.1, or 48 kHz and an ARC channel accuracy of a typical value of 35ppm, which underscores its precision in handling audio return channels. This functionality is particularly valuable for modern home theater systems and soundbars, allowing for the seamless transmission of audio from the television back to the audio device.
The analyzer is also adept at handling various HDMI functions such as Video, Audio, CEC (Consumer Electronics Control), ARC, HEC (HDMI Ethernet Channel), and HPD (Hot Plug Detect) analysis. This versatility makes it an indispensable tool for developers and technicians working with HDMI devices, ensuring comprehensive testing capabilities.
From a technical standpoint, the NI PXIe-1491 supports a TDMS (Transition Minimized Differential Signaling) clock rate from 25 MHz to 225 MHz and a video clock rate from 25 MHz to 165 MHz. It is capable of detecting a minimum pulse width of 64 nanoseconds, highlighting its capability to analyze high-speed digital signals accurately.
The physical dimensions of the analyzer are 8.5 x 0.8 x 5.1 inches, and it weighs 208 grams, making it a compact and lightweight option for labs and fieldwork. Its design is well-suited for integration into existing test rigs or for use as a standalone analyzer in a variety of settings.
| Specification | Description |
|---|---|
| Part Number | 151958D-01L |
| Category | Audio/Video Instruments |
| Model | PXIe-1491 |
| Description | NI PXIe-1491 HDMI Protocol, Audio, and Video Analyzer |
| Audio Channels | 8 channels |
| Audio Sample Rate | 32 kHz to 192 kHz |
| ARC Channels | 2 channels |
| ARC Sample Rates | 32, 44.1, or 48 kHz |
| ARC Channel Accuracy | Typical value of 35ppm |
| HDMI Functions | Video, Audio, CEC, ARC, HEC, HPD analysis |
| TDMS Clock Rate | 25 MHz to 225 MHz |
| Video Clock Rate | 25 MHz to 165 MHz |
| Minimum Pulse Width Detection | 64 nanoseconds |
| Dimensions | 8.5 x 0.8 x 5.1 inches |
| Weight | 208 grams |
|
Question 1: What is the part number of the NI PXIe-1491? Question 2: How many audio channels does the NI PXIe-1491 support? Question 3: What ARC sample rates does the PXIe-1491 support? Question 4: What is the TDMS clock rate range of the PXIe-1491? Question 5: What are the PXIe-1491’s physical dimensions? |



