Invention Grant
- Patent Title: System on a chip with multiple independent outputs
- Patent Title (中): 具有多个独立输出的芯片上的系统
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Application No.: US11796968Application Date: 2007-04-30
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Publication No.: US07656331B2Publication Date: 2010-02-02
- Inventor: Matthew D. Felder , Charles Eric Seaberg
- Applicant: Matthew D. Felder , Charles Eric Seaberg
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agent Gary R. Stanford
- Main IPC: H03M3/00
- IPC: H03M3/00

Abstract:
An audio output circuit includes a DAC module, a line out circuit, and a headphone amplifier circuit. The digital to analog conversion (DAC) module is coupled to convert an audio component of digitized multimedia data into an analog audio signal. The line out circuit is coupled to amplify the analog audio signal based on a line out volume setting. The headphone amplifier is coupled to amplify the analog audio signal based on a volume setting to produce an amplified analog audio signal.
Public/Granted literature
- US20080100488A1 System on a chip with multiple independent outputs Public/Granted day:2008-05-01
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