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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCM4220PFB датащи(PDF) 26 Page - Texas Instruments |
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PCM4220PFB датащи(HTML) 26 Page - Texas Instruments |
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26 / 34 page  www.ti.com 560W 40.2W 40.2W 270W 270W 1nF 1nF 100nF VINL orVINR - - VINL orVINR+ + C 1 + + 560W C 2 U2 2.7nF U1 VCOML or VCOMR INPUT+ INPUT- U1,U2=NE5534A,OPA227,orsimilar R W 1 10kW 10kW 40.2W 40.2W 1.5kW 1.5kW 1nF 1nF VINL + + orVINR VINL - - orVINR C 1 + + R W 2 C 2 U2 2.7nF U3 U1 INPUT+ INPUT- VCOML or VCOMR U1,U2=NE5534A,OPA227,orsimilar. U3=OPA227orequivalent. PCM4220 SBAS407A – DECEMBER 2006 – REVISED MAY 2007 C1 and C2 provide ac coupling. They may be removed if the dc offset from the circuit is negligible. Figure 46. Alternative Buffer Circuit Using Standard Op Amps R1 and R2 are optional. When used, values may be selected for the desired attenuation. C1 and C2 provide ac coupling. They may be removed if the dc offset from the circuit is negligible. Figure 47. Noninverting Differential Input Buffer Utilizing Standard Op Amps 26 Submit Documentation Feedback |
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