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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SSM4567ACBZ-R7 датащи(PDF) 27 Page - Analog Devices |
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SSM4567ACBZ-R7 датащи(HTML) 27 Page - Analog Devices |
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27 / 52 page  Data Sheet SSM4567 Rev. 0| Page 27 of 52 POWER SUPPLY DECOUPLING To ensure high efficiency, low total harmonic distortion (THD) and high PSRR, proper power supply decoupling is necessary. Noise transients on the power supply lines are short duration voltage spikes. These spikes can contain frequency components that extend into the hundreds of megahertz. Both the battery supply and internally generated VBST must be decoupled with a good quality, low ESL, low ESR capacitor, with a minimum value of 10 μF. This capacitor bypasses low frequency noises to the ground plane. For high frequency transient noises, use a 1 μF capacitor as close as possible to the VBAT and VBST pins of the device. If possible, avoid vias between the pins of the capacitor and the pin of the device. Placing the decoupling capacitors as close as possible to the SSM4567 helps to maintain good performance. Table 20. Suggested Inductors Part No. Manufacturer Value (μH) Rated Current (mA) DCR (Ω) Size (mm) IFSC1008ABER2R2M01 Vishay Dale 2.2 1850 0.09 2.50 × 2.00 × 1.20 IFSC1111ABER2R2M01 Vishay Dale 2.2 1900 0.098 2.90 × 2.90 × 1.20 MAMK2520T2R2M Taiyo Yuden 2.2 1900 0.117 2.50 × 2.00 × 1.20 L1210R2R2MDWIT Kemet 2.2 2000 0.08 3.20 × 2.49 × 2.49 LQM2HPN2R2MGHL Murata 2.2 1500 0.110 2.5 × 2.00 × 0.90 |
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