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LA7577 데이터시트(PDF) 1 Page - Sanyo Semicon Device |
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LA7577 데이터시트(HTML) 1 Page - Sanyo Semicon Device |
1 / 16 page LA7577N SANYO Electric Co., Ltd. Semiconductor Business Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 60597HA(ID) / 11795TH(ID) No. 4037—1/16 Ordering number: EN 4037C Monolithic Linear IC Super-split PLL-II VIF and SIF IF Signal Processor for TV/VTRs Overview The LA7577N is a high tone quality and high picture qual- ity, video IF and sound IF IC. It employs split processing of the video IF signal and sound IF signal using SAW fil- ters and a PLL detector. Further, the PLL detector incorpo- rates a buzz canceler for Nyquist buzz interference suppression to achieve high tone quality. Functions VIF stage • VIF amplifier • PLL detector • B/W noise canceler • RF AGC • VCO • Equalizer amplifier • AFT • APC detector • APC filter • Lock detector • IF AGC • Buzz canceler 1st SIF stage • Preamplifier with AGC • 1st SIF detector SIF stage • SIF limiter amplifier • FM quadrature detector Mute stage • Sound mute (pin 2) • AV mute (pin 4) • IS-15 switch (pin 13) Features • Employs split processing for wide bandwidth video characteristics • PLL detector with buzz canceler for excellent buzz and buzz beat characteristics • APC time constant switch built-in • High-speed AGC supports double time constant method • SIF carrier level AGC in the 1st SIF stage for good SIF weak electric field characteristics • Good differential gain and phase characteristics • RF AGC easily adjusted using a variable resistor Package Dimensions unit: mm 3067-DIP24S [LA7577N] Specifications Absolute Maximum Ratings at Ta = 25 °C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max 13.8 V Allowable power dissipation Pd max Ta ≤ 50°C 1200 mW Circuit voltages V3, V13 VCC V V11 VCC V V23 VCC V |
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