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參數(shù)資料
| 型號(hào)： | YAC520-EZ |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20 |
| 封裝： | LEAD FREE, PLASTIC, SSOP-20 |
| 文件頁(yè)數(shù)： | 6/16頁(yè) |
| 文件大?。?/td> | 2153K |
| 代理商： | YAC520-EZ |
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YAC520
14
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Example of PCB Layout
To achieve the maximum performance of this device, it is necessary to take special care for the power supply and the
method of grounding. (The above figure shows an example of the layout on the PCB that assumes the daisy chain
connection of two HGVC1s.) Connect a regulated low noise 5 V power supply to AVDD, and de-couple with DVDD
through a resistor for the purpose of avoiding mixing of noise that is generated in the serial interface. (Refer to ■ Example
of System Configuration) At this time, the decoupling
capacitor should be located as close as possible to HGVC1. The analog domain and digital domain should be grounded
separately, and HGVC1 should be located in the analog domain side, so that a pattern layout with minimized impedance to
AVSS and DVSS pins can be achieved. The analog ground and digital ground should be given sufficiently wide areas
respectively so that the radiation of the noise can be suppressed effectively.
Control signals such as serial interface should be placed collectively in the area nearer to the digital ground plane (upper
side), and analog signals and digital signals should be arranged without crossing each other and without running side by
side to prevent their interference.
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