CXA2677GA - Sony Corporation

CXA2677GA (CXA2676GA / CXA2677GA) Optical Pickup Chipset

Optical Pickup Chipset with CD/DVD Recording Photodetector IC (PDIC) Supports High-Speed Writing to both CD and DVD Media CXA2677GA CXA2676GA The signal processing required for DVD is far more complex than that for CD. Sony has now developed an optical pickup chipset, the CXA2677GA and CXA2676GA, that is appropriate for this complex signal processing. These.

Features

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 and the detection of address bit signal unique to DVD ±R/RW with the WPP1
  – WPP2 signal. Also, it adopts a three-stage structure with a write mode and two read modes with high gain and low gain mode settings. The band limiter function used in write mode provides an average value signal with high precision. LGA COB (chip on board) Small Package To increase the number of pins while retaining the package dimensions (4.5 × 3.2 mm).