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Audio interface protection circuit

Source: InternetPublisher:偷熊计划 Keywords: Protection Circuit Updated: 2024/11/07

■G1 is a SMD triode ceramic tube LT-B3D230L, used as the front stage for common mode and differential mode protection.

■PTC1~PTC2 are used to isolate the front and rear stages of JK250-120U.

■T1~T3 are low voltage P4SMAJ6.5CA TVS tubes, used as post-stage protection.

■The protection capability of this solution is 5KV (10/7000μs).

■If there is no grounding, only differential mode protection is provided. G1 is LT-BC151N.

音频接口保护电路

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