Electrostatic test and solution of audio decoder board
Test product: audio decoding board
Temperature and humidity of Leimao laboratory: 26 degrees, 61%
Test standard: electrostatic test must pass IEC61000-4-2.
Test purpose: to judge whether the HDMI interface is discharged and ESD plays a protective role.
| IEC61000-4-5 |
Air discharge |
Contact discharge |
|
HDMI interface |
8KV | 4KV |
2. Lei Mao adopts circuit protection scheme (WeChat scanning applet QR code can see more protection schemes):
ULC0524P device protection is adopted.
3. Test photos and result data records：
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Select the model |
Anti-static ESD test record |
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ULC0524P |
Contact discharge |
4KV ±10C |
PASS |
|
|
6KV ±10C |
PASS |
|
|
|
8KV ±10C |
PASS |
|
|
|
10KV ±10C |
Can't recover or restart independently after a black screen. |
|
|
Air discharge |
6KV ±10C |
PASS |
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|
|
8KV ±10C |
PASS |
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|
|
10KV ±10C |
PASS |
|
|
|
14KV ±10C |
Can't recover or restart independently after a black screen. |
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Note: the selection of Leimao ULC0524P can meet the test standard IEC61000-4-2 of customer boards.
The above scheme is a typical scheme of Shanghai Leimao Electronics. If there are special packaging requirements, especially parameter requirements, you can contact the original factory to provide a personalized scheme. The original EMC Lab provides free diagnostic tests for various electronic module products, and engineers in need contact Leimao Electronic Lab to make an appointment to apply. Feel free to contact Hu Gong at 18016225001.