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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LC823450 датащи(PDF) 92 Page - ON Semiconductor |
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LC823450 датащи(HTML) 92 Page - ON Semiconductor |
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92 / 112 page  LC823450 www.onsemi.com 92 PLL2(Audio) The figure below shows the PLL2 circuit. Place the decoupling capacitor in the terminal neighborhood on the board, and keep low noise by apart from other power supply lines. Figure 41. PLL2 (Audio) VCNT2 R1 C1 C2 + C4 C3 R2 AVSSPLL2 AVDDPLL2 AVSSPLL2 AVDDPLL2 Table 57. PLL2 (AUDIO) Symbol Value1 (Note 73) Value2 (Note 74) Serial Number or Accuracy R1 120 Ω 560 Ω ±5% R2 *M Ω *M Ω ±5% C1 4.7 μF 0.33 μF Capacitor ：±10% Temperature ：±15% ( −20_C to +65_C ) C2 0.047 μF 0.015 μF C3 0.1 μF 0.1 μF C4 33 μF 33 μF 16CV33BS 72. C4 : refers to the part of mounting on the catalog of our company (CV−B S Series). 73. appropriate value for Fre ≥ 6.4 kHz 74. appropriate value for Fref ≥ 38.4 kHz 75. Use R2 basically by unmounting. The characteristic of PLL might be improved by mounting R2. Prepare the wire pattern. 76. The values of parts are for reference. There is a possibility that the adjustment is needed according to the situation of the set. 77. Connect with decoupling capacitor in the terminal neighborhood on the board, and keep low noise by apart from other power supply lines. |
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