Datenblatt-Suchmaschine für elektronische Bauteile |
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ADMP521 Datenblatt(PDF) 11 Page - Analog Devices |
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ADMP521 Datenblatt(HTML) 11 Page - Analog Devices |
11 / 16 page Data Sheet ADMP521 Rev. A | Page 11 of 16 PCB DESIGN AND LAYOUT The recommended PCB land pattern for the ADMP521 should be laid out to a 1:1 ratio to the solder pads on the microphone package, as shown in Figure 15. Take care to avoid applying solder paste to the sound hole in the PCB. A suggested solder paste stencil pattern layout is shown in Figure 16. The response of the ADMP521 is not affected by the PCB hole size as long as the hole is not smaller than the sound port of the microphone (0.25 mm, or 0.010”, in diameter). A 0.5 mm to 1 mm (0.020 inch to 0.040 inch) diameter for the hole is recommended. Take care to align the hole in the microphone package with the hole in the PCB. The exact degree of the alignment does not affect the microphone performance as long as the holes are not partially or completely blocked. 4× 0.40 × 0.60 (0.30) 0.90 (0.30) ø1.70 3.80 (0.30) 0.35 2.80 2× R0.10 (0.30) 0.35 2.05 0.70 ø1.10 (1.000) (0.550) CENTER LINE Figure 15. Suggested PCB Land Pattern Layout 1.45 0.9 2.45 0.7 1.525 1.000 0.35 1.849 1.849 1.498 0.205 WIDE 0.248 × 0.498 (2×) 0.248 × 1.148 (2×) 0.248 × 0.948 (2×) 1.498 × 0.248 0.398 × 0.298 (4×) 0.362 CUT (3×) 1.17 24° 24° 0.375 CENTER LINE Figure 16. Suggested Solder Paste Stencil Pattern Layout |
Ähnliche Teilenummer - ADMP521 |
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Ähnliche Beschreibung - ADMP521 |
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