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WM8721 数据表(PDF) 33 Page - Wolfson Microelectronics plc |
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WM8721 数据表(HTML) 33 Page - Wolfson Microelectronics plc |
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33 / 34 page ![]() WM8721 Product Preview WOLFSON MICROELECTRONICS LTD PP Rev 1.3 November 2000 33 RECOMMENDED EXTERNAL COMPONENTS WM8721 DAC RHPOUT VMID LOUT + 470nF 47k Ω 100 Ω 9 LHPOUT + 47k Ω 220 µF 6 AVDD AGND 11 12 3.3V HPVDD HPGND 8 5 3.3V ROUT + 470nF 47k Ω 100 Ω 10 + 47k Ω 220 µF 7 0.1 µF 10 µF + 13 DACLRC DACDAT DBVDD DCVDD 3.3V DGND 1.5V - 3.3V 1 20 19 BCLK 2 Audio Serial Data I/F 4 3 3-wire or 2-wire MPU Interface 3-wire Interface 2-wire Interface SDIN 16 CSB 15 SCLK 17 MODE 14 10 µF0.1µF 10k Ω 3.3V MCLK 10 µF 18 0.1 µF 10µF 0.1 µF 0.1 µF 10µF Figure 34 External Components Diagram |
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