The DX7 runs on a Hitachi HD63B03RP CPU. Among other things, the DX7's firmware is responsible for handling user input, MIDI I/O, and processing the synth's LFO, pitch, and operator amplitude ...
We present the first all-digital PLL and polar transmitter for mobile phones. They are part of a single-chip GSM/EDGE transceiver SoC fabricated in a 90 nm digital CMOS process. The circuits are ...
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