Sound bytes

被引：0
|
作者：
Israelsohn, J
机构：
来源：
EDN | 2004年 / 49卷 / 13期
关键词：
Amplifiers (electronic) - Hand held computers - Interfaces (computer) - Microphones - Personal digital assistants - Tactile reading aids - Telephone;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The variability in the set of desirable audio-converter traits is discussed. The WM9713L from Wolfson Microelectronics integrates dual codecs with a touchpanel interface for PDA, smart phones, and handheld computers. A high-fidelity stereo codec provides dual microphone preamplifiers, a signal-source selector, an ADC, an automatic level control, tone control, a DAC, output amplifiers and a compatible interface. The TSC2101 also integrates an audio codec with speaker and headphone amplifiers and a four-wire touchscreen controller for PDA, smart phones, and MP3 players. It is found that the digital-audio converters for home-entertainment equipment demand high levels of integration.
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页码：40 / +
页数：9
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