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SA572D
SA572 Programmable analog compandor Rev. 03 — 3 November 1998 Product data 1. Description The SA572 is a dual-channel, high-performance gain control circuit in which either channel may be used for dynamic range compression or expansion. Each channel has a full-wave rectifier to detect the average value of input signal, a linearized, temperature-compensated variable gain cell (∆G) and a dynamic time constant buffer. The buffer permits independent control of dynamic attack and recovery time with minimum external components and improved low frequency gain control ripple distortion over previous compandors. The SA572 is intended for noise reduction in high-performance audio systems. It can also be used in a wide range of communication systems and video recording applications. 2. Features c c s s s s s s s s s Independent control of attack and recovery time Improved low frequency gain control ripple Complementary gain compression and expansion with external op amp Wide dynamic rangegreater than 110 dB Temperature-compensated gain control Low distortion gain cell Low noise6 µV typical Wide supply voltage range6 to 22 µV System level adjustable with external components s s s s s s s Dynamic noise reduction system Voltage control amplifier Stereo expandor Automatic level control High-level limiter Low-level noise gate State variable filter 3. Applications
PHILIPS
2006年8月フィリップス社が半導体部門を投資家グループに売却しKASLION Acquisition B.V.の名称で法人化。2010年5月 社名を現在のNXPセミコンダクターズN.V.に変更。
NXP
NXP Semiconductors
オランダ
高性能ミックスドシグナルICのほか、ディスクリートなどの汎用製品をグローバルに提供している。
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