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.
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