34119

      The 34119 is a low power audio amplifier integrated circuit. It is mainly used in the field of telephone, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages (2.0 V minimum).Coupling capacitors to the speaker are not required. Open loop gain is 80 dB, and the closed loop gain is set with two external resistors. A Chip Disable pin permits powering down and/or muting the input signal.
      Then we give you some information about the features.34119 has ten features as follows.The first one is that it has wide operating supply voltage range (2.0V to 16V) and allows telephone line powered applications.The second one is that it has low quiescent aupply current (2.7 mA Typ) for battery oowered applications.The third one is that it has chip disable input to power down the IC.The fourth one is that it has low power--down quiescent current (65 A Typ).The fifth one is that it drives a wide range of speaker loads (8.0 and up).The sixth one is that the output power exceeds 250 mW with 32 Speaker.The seventh one is that it has low total harmonic distortion (0.5% Typ).The eighth one is that the gain is adjustable from <0 dB to >46 dB for voice band.The ninth one is that it requires few external components.The tenth one is that it has Pb-Free packaging designated by suffix code EF.
      You have to get some detail information about the maximum ratings if you want to purchase the 34119.It has five maximum ratings.The first one is that the minimum load impedance (at VIN) (R_L) is 8.0.The second one is that the minimum peak load current (IL) is 200 mA and the maximum is 200 mA.The third one is that the differential gain (5.0 kHz Bandwidth) (AVD) ranges from 0.0 to 46 dB.The fourth one is the minimum supply voltage (V_DC) is 2.0V and the maximum is 16V.The fifth one is that the ambient temperature (TA) is from -20 to 70 °C.