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LC895299L 데이터시트(PDF) 1 Page - Sanyo Semicon Device |
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LC895299L 데이터시트(HTML) 1 Page - Sanyo Semicon Device |
1 / 12 page Ordering number : ENN6249A 13100TH (OT)/31599HA (OT) No. 6249-1/12 Overview The LC895299W and LC895299L are CD-ROM drive digital servo system ICs that integrate all signal- processing functions after the RF head amplifier on a single chip. Functions • Built-in digital servo and ATAPI (IDE) CD-ROM, CD-DSP, CAV audio, and1-Mbit DRAM functions Features CD-DSP Block • Supports full CAV operation at 48 × speed • Assures stable data readout by performing frame sync signal detection, protection, and interpolation. • Demodulates the EFM signal to produce 8-bit symbol data. • Applies a CRC check to the subcode Q signal and then outputs that signal via parallel I/O to the system microprocessor. • Performs unscrambling and deinterleaving operations to rearrange the demodulated EFM signal in the stipulated order. • Detects and corrects error signals and processes flags (C1: 2 errors, C2: 4 errors) • References the C1 flags and the C2 error check result to set the C2 flags and interpolates or mutes the signal depending on the C2 flags. • Provides two types of muting: zero-cross muting and soft muting. • Independent left and right channel digital attenuators (8-bit resolution) Provides two types of attenuation: direct attenuation and soft attenuation. • Bilingual support • Built-in digital audio interface (supports both CLV and CAV) • Built-in digital deemphasis • Built-in 8 × oversampling digital filters • Built-in D/A converters CD-ROM Decoder and ATAPI (IDE) Interface Block • Built-in ATAPI (IDE) interface • The user can freely set the CD main channel, C2 flag, and subcode areas in internal DRAM. • Batch transfer function (Function for transferring the CD main channel, C2 flag, or subcode data in a single operation.) • Multiple transfer function (Function for transferring multiple blocks automatically in a single operation.) • CAV audio functions • Intelligent functions (auto buffering, auto decoding, and CD-R functions) • Subcode P to W buffering function (No ECC) and CD-TEXT support • Supports Ultra DMA MODE2, MODE1, and MODE0 • Built in 1-Mbit DRAM LC895299W, 895299L SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 48 × Speed ATAPI (IDE) CD-ROM Decoder with On-Chip Digital Servo System CMOS IC Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein. |
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