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LA1787M Arkusz danych(PDF) 1 Page - Sanyo Semicon Device |
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1 / 54 page 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. Overview The LA1787M integrates all six blocks required in a car radio tuner on a single chip. Functions • FM front end • FM IF • Noise canceller • Multiplex • AM up-conversion • FM/AM switch • MRC Features • Improved noise reduction methods — The FM front end provides excellent 3-signal characteristics equivalent to those of the LA1193M. — Superlative listenability due to improved medium and weak field noise canceller characteristics. — Improved separation characteristics — Anti-birdie filter — Improved AM and FM thermal characteristics — Excellent FM signal meter linearity — Modified N.C. circuit for improved noise rejection • Improved AM adjacent channel interference characteristics ( ∆40 kHz) • Double conversion AM tuner (up conversion) Reduces the number of external components required as compared to earlier double conversion tuners, in particular, no crystal is required (when used in conjunction with the LC72144). • Sample-to-sample variation reduction circuit built into the FM IF circuit. (Fixed resistors are used for the SD, keyed AGC, mute on adjustment, ATT, SNC, and HCC functions.) • Improved FM separation temperature characteristics • The LA1787 inherits the block arrangement of the LA1780M and supports pin-compatible designs. Package Dimensions Unit:mm 3159A-QIP64E (14 × 14) Monolithic Linear IC Ordering number : ENN6655 72602RM (OT) No. 6655-1/54 SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN Single-Chip Tuner IC for Car Radios LA1787M 14.0 17.2 0.15 0.35 0.8 (1.0) 116 17 32 33 48 49 64 Ambient temperature, Ta — °C Mounted on a 40 × 80 × 1.3 mm3 glass epoxy printed circuit board Independent IC SANYO: QIP64E (14 × 14) [LA1787M] |
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