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Text: SANYO SEMICONDUCTOR CORP~ LC7990! 7990MI 15E D I 7^707^, 0003152 T -SÌ- 1/ I 3059 3073A CMOS LSI ©2239A Digital Servo Circuit for HDD, General-Purpose Use The LC7990, 7990M are digital servo LSIs for HDD (Hard Disk Drive) spindle motor use. Since the LC7990, 7990M contain a serial data input circuit, the servo characteristics can be set by an external microcomputer and the LC7990, 7990M may be also used as a general-purpose digital servo. Features . On-chip speed control circuit and

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PDF LC7990! 7990MI LC7990, 7990M QD03 3 phase speed control hdd spindle motor INT2028 LC7990 LC7990M
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