In the circuit design, unit current source arrays and digital synchronizing cells are used to improve the matching and dynamic range of DAC.

电路设计中使用单位电流源阵列和数字同步控制单元来提高电流源的匹配性和动态范围；

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The principle of the most significant bits digital decoder-13 bits DAC is described in detail, and the gain controlled amplifier is theoretically analysed.

详细叙述了高位数字译码器13位DAC的工作原理，并对可变增益放大器作了理论分析。

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It is also proposed in this paper that the digital PWM is a DAC in essence and its resolution selection rules should also follow that of DAC.

文中同时指出，数字式pwm的实质也是一种DAC，它的位数选择同样遵循DAC的选择原则。

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VAMP's audiophile-grade, high fidelity DAC processor extracts the digital signal of the iPhone to bypass the iPhone's internal DAC.

ENGADGET: V-Moda VAMP for the iPhone: an analog converter and headphone amp with a $650 pricetag

As a test, I downloaded files from HDtracks.com, an online retailer specializing in hi-res audio, plugged a device known as a digital-to-analog converter (DAC) into my computer and listened over earphones.

WSJ: Sonic Truth

Case in point: the Icon iDo integrated digital-to-analog converter (also called a DAC) and integrated amplifier is geared specifically toward Apple portable devices like the iPhone and iPad.

FORBES: How Nuforce is Reinventing High-End Audio for the Digital Age