Title:
AUDIO CIRCUIT AND MOBILE TERMINAL PROVIDED WITH AUDIO CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/259143
Kind Code:
A1
Abstract:
Disclosed are an audio circuit and a mobile terminal provided with the audio circuit. The audio circuit comprises a circuit main board and a circuit sub-board, which is arranged separate from the circuit main board. The circuit main board comprises an audio coding and decoding chip circuit, a radio frequency circuit and a circuit main board signal ground; and the circuit sub-board is provided with a microphone circuit, an antenna circuit, a decoupling capacitor of a circuit sub-board signal ground and a first anti-static device, wherein the audio coding and decoding chip circuit is configured to provide a bias voltage for the circuit sub-board through a transmission line in the circuit main board, and after the decoupling capacitor is connected to the first anti-static device in parallel, the decoupling capacitor is connected to the transmission line, the transmission line being in communication with the circuit main board signal ground through the decoupling capacitor and the first anti-static device, which are connected in parallel.
Inventors:
JIANG FABIAO (CN)
Application Number:
PCT/CN2020/091498
Publication Date:
December 30, 2020
Filing Date:
May 21, 2020
Export Citation:
Assignee:
XIAN ZHONGXING NEW SOFTWARE CO LTD (CN)
International Classes:
H04M1/02
Foreign References:
| CN105992098A | 2016-10-05 | |||
| CN106328157A | 2017-01-11 | |||
| CN102780938A | 2012-11-14 | |||
| US7882743B2 | 2011-02-08 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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