LC7874E Schematic ( PDF Datasheet ) - Sanyo Semicon Device

Teilenummer	LC7874E
Beschreibung	CD Graphics Decorder
Hersteller	Sanyo Semicon Device
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Gesamt 22 Seiten Ordering number : EN5521 CMOS LSI LC7874E CD Graphics Decorder Overview The LC7874E is a CMOS LSI that provides the signal processing needed for compact disc graphics (CD-G) on a single chip. The LC7874E accepts subcode R to W signals output from a CD player DSP LC786X Series, LC7862XE Series, or LC7863XE Series device, and performs de-interleaving, error detection and correction, graphic instruction processing, and image processing. Features • A CD-G decoder can be configured using a three-chip combination of this LSI—the LC7874E—with external RAM (64K × 4 bits) and an LC78010E digital RGB encoder. • Performs insertion and protection of CD subcode R to W sync signals and detection of R to W signal de- interleave error signals. • Has two crystal oscillators, for NTSC and PAL, with simple switchover by means of a control pin. Connecting a crystal resonator of 14.31818 MHz for NTSC and 17.734476 MHz for PAL enables the standard clock and other necessary timings to be generated internally. • Performs CD graphics instruction processing and drawing functions, and controls image display. • Has microcomputer interface functions, allowing set upgrading. • Provides superimposition support. • Has a color bar signal output function. • DRAM interface and RGB output and sync signal output are 3-state outputs. Package Dimensions unit: mm 3159-QFP64E [LC7874E] SANYO: QIP64E • CCB is a trademark of SANYO ELECTRIC CO., LTD. • CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO. Specifications Electrical Characteristics at Ta = –30°C to +85°C Parameter Power supply voltage Input voltage Output voltage Allowable power dissipation Operating temperature Storage temperature Symbol VDD VIN VOUT Pd max Topr Tstg Conditions Ratings VDD S1, S2, SFSY, PW, SBSY, CE, DI, CL, MUTE, DB0 to 3, VSS – 0.3 to VSS + 7.0 CB, CE1, CE2, CE3, LINE, HRESET, VRESET, INIT, RESET, N/P, SON, XIN1, XIN2 VSS – 0.3 to VDD + 0.3 SBCK, DO, CDGM, WE, RAS, A0 to 7, DB0 to 3, CAS, OE, ROUT0 to 3, GOUT0 to 3, BOUT0 to 3, HSYNC, CSYNC, BLANK, YS, 4FSCO, EFLG, FSCO, XOUT1, XOUT2 VSS – 0.3 to VDD +0 .3 Ta = 25°C 500 –30 to +85 –40 to +125 Unit V V V mW °C °C SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 13097HA(OT) No. 5521-1/22 DRAM Early Write Cycle LC7874E No. 5521-6/22 6 Page Block Diagram LC7874E No. 5521-12/22 12 Page
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Teilenummer	Beschreibung	Hersteller
LC7874E	CD Graphics Decorder	Sanyo Semicon Device

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