单片电路音频芯片MM1407的应用 下载
- 文件类型:
- 音视频类电子资料,音视频类
- 文件大小:
- 6.63 MB
- 下载次数:
- [1000次]
- 日期:
- 08-10
- 解压密码:
- www.dianzi6.com
- Tag:
- 音视频类,音视频类电子资料
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- txt/doc/word/ppt/pdf 等
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正文:
This audio IC was developed for notebook PCs and allows major reduction of amp circuit board area. (To conform to PC98, includes built-in speaker drive amp, headphone amp, line amp. stereo/monaural switching,DC voltage control electronic volume, watchdog, logic control function.)
Applications
(1) Notebook PC audio control
Features
(1) Speaker amp: Stereo BTL output 0.7W (when VCC = 5.0V, RL = 8½)
(2) Electronic volume control (-60 ~ +20dB). THD = 0.5% (when POUT = 300mW, RL = 8½)
THD1 = 0.5% (when VOUT = 100mVrms, RL = 16½)
THD2 = 0.1% (when VOUT = 1VmVrms, RL = 10k½)
(4) Line amp: Mixes 4 inputs ( 2ch signals and outputs on 3 outputs ( 2ch. Stereo/monaural switching
possible on one line. THD = 0.1% (when VOUT = 1Vrms, RL = 10k½)
(5) Microphone amp: Switch pin selects 1 of 4 inputs
(6) Logic control: Speaker, headphone and line amp (including microphone amp and mix amp) logic
controllable. Current consumption 300μA during power save mode.
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