CXA2677GA chipset equivalent, (cxa2676ga / cxa2677ga) optical pickup chipset.
two additional pins: WPP1 (A + B) and WPP2 (C + D). This allows the generation of the WRF signal used in earlier (CXA2660N) CD-R/RW systems with the WPP1 + WPP2 signal an.
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