TA7709F

The TA7709F is a dual preamplifier designed for use in a playback amplifier of low voltage operating tape recorder.It is consist of two channels preamplifier and two transistors of collector common grounded.

Features of the TA7709F are:(1)high voltage gain at open loop : GVO=85dB(Typ.)(VCC=3V,f=1kHz);(2)non-necessary the input coupling condensers;(3)operating supply voltage range : VCC=1.6 to 5V (Ta=25);(4)TA7709F (SO) is standard model of flat package.

The maximum ratings of the TA7709F can be summarized as:(1):the characteristic is supply voltage,thesymbol is VCC,the rating is 7,the unit is V;(2):the characteristic is power dissipation,thesymbol is PD,the rating is 350,the unit is mW;(3):the characteristic is operating temperature,thesymbol is Topr,the rating is -25 to 75,the unit is ;(4):the characteristic is storage temperature,thesymbol is Tstg,the rating is -55 to 125,the unit is .

The electrical characteristics of the TA7709F can be summarized as:(1):the characteristic is quiescent current,the symbol is ICCQ,the Typ is 2.0,the Max is 3.4,the unit is mA;(2):the characteristic is open loop gain,the symbol is GVO,the Min is 70,the Typ is 85,the unit is dB;(3):the characteristic is maximum output voltage,the symbol is Vom,the Min is 0.5,the Typ is 0.9,the unit is Vrms;(4):the characteristic is total harmonic distortion,the symbol is THD,the Typ is 0.07,the Max is 0.5,the unit is %;(5):the characteristic is output noise voltage,the symbol is Vno,the Typ is 0.14,the Max is 0.22,the unit is mVrms;(6):the characteristic is cross talk,the symbol is CT,the Typ is 60,the unit is dB;(7):the characteristic is muting attenuation,the symbol is ATT,the Typ is 43,the unit is dB;(8):the characteristic is input resistance,the symbol is RIN,the Min is 20,the Typ is 30,the unit is k.