USB controller circuit with PCM2902
Making USB controller
This PCM2902 single chip USB stereo audio codec with the protocol controller with full-speed USB and S / PDIF. USB protocol controller works with no software code. PCM2900 PCM2902 employs a unique system of USB data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter [...]
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USB controller circuit with PCM2902
EPROM burner card circuit diagram
EPROM progrogramer does NOT use any device to output a voltage to the PC printer port, only a current sink. All inputs from the printer port are buffered. In this way there is little or no possibility of damage to the printer port, even with most wiring error possibilties during construction. This EPROM burner will [...]
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