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overview
 Wikipedia: Mixed-signal integrated circuit
A mixed-signal integrated circuit combines analog circuits with digital signal processing (DSP) circuits on a single semiconductor die. An integrated circuit that includes both analog and digital circuitry (but no DSP), like a 555 timer, is generally not considered a mixed-signal integrated circuit.
Typically, mixed-signal chips perform some whole function or sub-function in a larger assembly such as the radio subsystem of a cell phone,...
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http://en.wikipedia.org/wiki/Mixed-signal_integrated_circuit
2/11/2008
Tags: analog
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