TBA2800

The TBA2800 preamplifier IC contains four main parts:the gain-controlled amplifier I,the amplifier II,the pulse-separating amplifer III,and the inverter IV,as shown in Fig.1.Bipolar integrated circuit,intended as a receiver preamplifier for central control unit for the infrared remote-control systems designed with integrated circuits of ITT.

The absolute maximum ratings of the TBA2800 can be summarized as:(1):the symbol is V3,the parameter is supply voltage,the rating is 6,the unit is V;(2):the symbol is Ts,the storage temperature range,the rating is -30 to 125,the unit is ;(3):the symbol is TA,the ambient operating temperature,the rating is 0 to +65,the unit is .

The characteristics of the TBA2800 can be summarized as:(1):the symbol is I2,the parameter is current consumption,the Typ is 1,the Max is 2,the unit is mA;(2):the symbol is G,the parameter is gain between pins 14 and 7,the Min is 70,the unit is dB;(3):the symbol is Ro,the parameter is output resistance pins 7 and 8 fromed by the pull-up resistor of an NPN transistor,the Typ is 20,the unit is k;(4):the symbol is VOL,the parameter is output loe voltage pins 7 and 8 at ICL=1.6mA,the Typ is 0.4,the Max is 0.8,the unit is V;(5):the symbol is L1,the parameter is one transmitter diode CQY99,the Typ is 12,the unit is m;(6):the symbol is L2,the parameter is two transmitter diode CQY99,the Typ is 19,the unit is m;(7):the symbol is L3,the parameter is three transmitter diode CQY99,the Typ is 26,the unit is m.