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PCM1609APT Datasheet(PDF) 33 Page - Texas Instruments |
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PCM1609APT Datasheet(HTML) 33 Page - Texas Instruments |
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33 / 43 page ![]() www.ti.com – PCM1609A A V + * R 2 R 1 VCOM OPA2134 + 2 3 1 C1 R3 R2 C2 R1 C3 10 µF + S0056-04 R4 + OPA337 − To Additional Low-Pass Filter Circuits VOUT VIN PCB LAYOUT GUIDELINES Digital Logic and Audio Processor Digital Power +VD DGND Digital Section Analog Section Return Path for Digital Signals Analog Power +VS AGND −VS +5VA Digital Ground Analog Ground Output Circuits PCM1609A AGND VCC VDD DGND REG B0031-05 PCM1609A SLES145A – AUGUST 2005 – REVISED AUGUST 2006 APPLICATION INFORMATION (continued) Figure 33. Single-Supply Filter Circuit A typical PCB floor plan for the PCM1609A is shown in Figure 34. A ground plane is recommended, with the analog and digital sections being isolated from one another using a split or cut in the circuit board. The PCM1609A should be oriented with the digital I/O pins facing the ground plane split/cut to allow for short, direct connections to the digital audio interface and control signals originating from the digital section of the board. Figure 34. Recommended PCB Layout 33 Submit Documentation Feedback |
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