{"type":"product","schema_version":"1.0","item_id":"100780083128","canonical_url":"https://tw.bid.yahoo.com/item/100780083128","title":"MAX9814 高性能 麥克風 AGC 放大器模組 CMA-4544PF-W W313-2[364584]","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-04-25T15:52:28.804Z","current_price":70,"original_price":null,"stock_status":"in_stock","available_quantity":30,"sold_quantity":0,"seller":{"id":"Y2831399681","name":"。BUY360。電子零件","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/879a51f3-4bc6-4ac6-94f7-ecbe830488cd.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/05b1ec10-ce59-41aa-8bd5-b383242221fe.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/610011d1-b1b4-4419-a397-ee68dce07d9e.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null}],"description":"MAX9814 高性能 麥克風 AGC 放大器模組 CMA-4544PF-W\n\n 資料  https://yunpan.taobao.com/s/1HJfAI5Rq2O\n\n Specifications:\n\n   - Supply Voltage: 2.7v-5.5v @ 3mA current\n  - Output: 2Vpp on 1.25V bias\n  - Frequency Response: 20Hz - 20 KHz\n  - Programmable Attack and Release Ratio\n  - Automatic gain, selectable max from 40dB, 50dB or 60dB\n  - Low Input-Referred Noise Density of 30nV/\n  - Low THD: 0.04% (typ)\n  -  \n   自動增益控制(AGC)\n  3種增益設置(40dB、50dB、60dB)\n  可程式設計動作時間\n  可程式設計動作和釋放時間比\n  2.7V至5.5V電源電壓範圍\n  低輸入雜訊密度30nV/\n  低THD：0.04% (典型值)\n  低功耗關斷模式\n  內置2V低雜訊麥克風偏置\n  提供節省空間的14引腳TDFN (3mm x 3mm)封裝\n  \n\n  -40°C至+85°C擴展級溫度範圍\n   \n  MAX9814是一款低成本、高性能麥克風放大器，具有自動增益控制(AGC)和低雜訊麥克風偏置。器件具有低雜訊前端放大器、可變增益放大器(VGA)、輸出放大器、麥克風偏置電壓發生器和AGC控制電路","shipping_methods":[{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"離島配送","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","信用卡一次付清","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092104064","category_name":"電子零件/材料","breadcrumb":[{"id":"23336","name":"電腦、平板與周邊","url":"/tw/%E9%9B%BB%E8%85%A6%E3%80%81%E5%B9%B3%E6%9D%BF%E8%88%87%E5%91%A8%E9%82%8A-23336-category.html"},{"id":"2092072621","name":"耗材與線材","url":"/tw/%E8%80%97%E6%9D%90%E8%88%87%E7%B7%9A%E6%9D%90-2092072621-category.html"},{"id":"2092104064","name":"電子零件/材料","url":"/tw/%E9%9B%BB%E5%AD%90%E9%9B%B6%E4%BB%B6-%E6%9D%90%E6%96%99-2092104064-category.html"}],"view_count":0,"watch_count":2}