The S5L1462B01 is used for CD and DVD playback. It receives optical signal from the optical pick-up to produce the data-generating RF signal, the servo error signal for stable servo control, and the monitor signal. This RF IC can be used in the CD 1x, 2x, or the DVD 1x CLV (Constant Linear Velocity) mode. The DVD mode is compatible with the Single/Dual Layer disc. The CD mode is compatible with the CD-ROM, CD-R and CD-RW disc.