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PCM5252 Datasheet(PDF) 63 Page - Texas Instruments |
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PCM5252 Datasheet(HTML) 63 Page - Texas Instruments |
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63 / 119 page  PCM5252 www.ti.com SLASE63 – NOVEMBER 2014 11.5 PCM5252 Power Modes 11.5.1 Setting Digital Power Supplies and I/O Voltage Rails The internal digital core of the PCM5252 runs from a 1.8V supply. This can be generated by the internal LDO, or by an external 1.8V supply. DVDD is used to set the I/O voltage, and to be used as the input to the onchip LDO that creates the 1.8V required by the digital core. For systems that require 3.3V IO support, but lower power consumption, DVDD should be connected to 3.3V and LDOO can be connected to an external 1.8V source. Doing so will disable the onchip LDO. When setting IO voltage to be 1.8V, both DVDD and LDOO must be provided with an external 1.8V supply. Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 63 Product Folder Links: PCM5252 |
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