{"action":"opened","issue":{"url":"https://api.github.com/repos/ZeroPhone/ZeroPhone-PCBs/issues/42","repository_url":"https://api.github.com/repos/ZeroPhone/ZeroPhone-PCBs","labels_url":"https://api.github.com/repos/ZeroPhone/ZeroPhone-PCBs/issues/42/labels{/name}","comments_url":"https://api.github.com/repos/ZeroPhone/ZeroPhone-PCBs/issues/42/comments","events_url":"https://api.github.com/repos/ZeroPhone/ZeroPhone-PCBs/issues/42/events","html_url":"https://github.com/ZeroPhone/ZeroPhone-PCBs/issues/42","id":233668830,"number":42,"title":"Possible audio problems and improvements","user":{"login":"CRImier","id":3173633,"avatar_url":"https://avatars1.githubusercontent.com/u/3173633?v=3","gravatar_id":"","url":"https://api.github.com/users/CRImier","html_url":"https://github.com/CRImier","followers_url":"https://api.github.com/users/CRImier/followers","following_url":"https://api.github.com/users/CRImier/following{/other_user}","gists_url":"https://api.github.com/users/CRImier/gists{/gist_id}","starred_url":"https://api.github.com/users/CRImier/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/CRImier/subscriptions","organizations_url":"https://api.github.com/users/CRImier/orgs","repos_url":"https://api.github.com/users/CRImier/repos","events_url":"https://api.github.com/users/CRImier/events{/privacy}","received_events_url":"https://api.github.com/users/CRImier/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-06-05T18:20:53Z","updated_at":"2017-06-05T18:20:53Z","closed_at":null,"body":"1) The DC blocking capacitor footprints (right before audio output) are meant to be 0805 and 1206 compatible. However, their pads are too close, even for 0603, so spacing the pads further away, and decreasing their size to maintain their current dimensions, might be necessary.\r\n2) The current audio circuit might benefit from a ground plane split in order to reduce interference (needs to be investigated)\r\n3) 10pF and 33pF capacitors could be added on each channel in order to reduce the GSM frequency interference with the audio output"}}
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