LA4587M

Ordering number: EN5204A Monolithic Linear IC LA4587M Preamplifier + Power Amplifier for 1.5 V Headphone Stereos Overview The LA4587M is a system IC that includes all of the necessary functions for a playback set on a single chip, reducing the number of external components needed. Package Dimensions unit : mm 3102-QFP48D [LA4587M] Functions . Stereo preamplifier (supports auto reverse function, between metal and normal tape) . switchable Stereo power amplifier (OCL, mute function) . Ripple filter . Low boost function (BTL operation in low-frequency range) . AMSS (Automatic Music Select System) . Power switch Features CC preamplifier and power amplifier inputs; anti-buzz provision. Specifications Maximum Ratings at Ta = 25 °C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Allowable power dissipation, Pd max − mW . Preamplifier has a high open-loop gain (VG = 73 dB). . Preamplifier requires no NF capacitor. . Virtual ground capacitor can be 1 µF or less. (Lower amplifier built in.) is achieved by having a V . impedance Ripple filter requires no capacitor for preventing oscillation. . Powerful output is obtained in low boost output = 21 mW/V = 1.2 V, f = 100 Hz). . (Po A high-frequency cutoff capacitor is built into the O REF SANYO : QIP48D Ambient temperature, Ta − °C Ratings 3.0 635 –10 to +60 –40 to +125 Unit V mW °C °C Conditions SANYO Electric Co.,Ltd. Semiconductor Bussi...