HA12133MP

      The HA12133MP is a bipolar IC developed for RDAT(rotary head digital audio tape recorder). It incorporates a playback amplifier , equalizer amplifier , and recording amplifier on one chip.
      HA12133MP has four applications which is as follows: The first one is playback amplifier. The second one is equalizer amplifier. The third one is recording amplifier. The forth one is  interface logic. At the same time , it also has four unique features : The first one is it incorporates a swithching circuit for ATF PILOT area recording level. The second one is it males possible direct interface connection to CMOS LSL. The third one is it allows two kinds of waveform equalizing circuit to be constructed. The forth one is that it is operated on 5 V single power supply voltage. The fifth one is that it allows board miniaturization through small surface mount package.
       Then, there are some absolute maximum ratings (Ta is 25 )about HA12133MP. Supply voltage (Vcc) is 6.0 V . Allowable disspation (Pd) is 600 mW. Operation temeprature (Topr) is from -20  to +75 . Storage temeprature (Tstg) is from -55  to +125. There are also some electrical characteristics about it . Operating voltage (Vcc) is 4.5 V min , 5.0 V typ and 5.5 V max. Preamp band width (BWPRE) is 13 MHZ typ. EQ2 voltage gain 1 (GvEQ21) is 21.0 dB min, 24.5 dB, and 28.0 dB when the f is 1 MHZ and r is 8.2 K. EQ2 voltage gain 2 (GvEQ22) is 16.2 dB min, 19.7 dB, and 23.2 dB when the f is 1 MHZ and r is 16 K. EQ2 band width(BWEQ) is 30 MHZ. EQ2 maximum output voltage is 1.0 V.
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