TDA8452A

      The TDA8452A is a monolithic intergrated P2CCD (Profiled Peristaltic Charge Coupled Device) filter combination which has been designed to be used in conjunction with various colour decoder ICs (e.g. TDA8466,TDA8391).The device incoporates a video input switch,a luminancw delay line with different delay lengths for the 3.58 MHz and the 4.43 MHz TV systems,chrominance trap,a chrominance band-pass filter and clock drivers for the filters which are driven from an internal voltage controlled oscillator (VCD) locked to the 2*fSC signal.The 2*fSC signal is obtained from the decoder IC.
      There are the ratings about TDA8452A to follow.The maximum supply voltage (analog) (V_p(a)) is 13.2 V and the maximum supply voltage (digital) (V_p(d))  is 13.2 V.The maximum total power dissipation (P_tot) is 1.45 W.The operating ambient temperature range (T_amb) is from -25 to +70.The storage temperature range (Tamb) is from -55 to +150.The maximum thermal resistance from junction to ambient (in free air) (R_{th j-a}) is 55 K/W.The following is about the characteristics.First is about the supplies.The minimum supply voltage (pin 2) analog (V_p(a)) is 10.8 V,the typical is 12.0 V and the maximum is 13.2 V.The minimum supply current (pin 2) analog (I_p(a)) is 10 mA,the typical is 20 mA and the maximum is 28 mA.The typical supply voltage (pin 2) ripple rejection at 100 mVeff (SVRR) is 7 dB at f=100 Hz.The minimum supply voltage (pin 12) digital (V_p(d)) is 10.8 V,the typical is 12.0 V and the maximum is 13.2 V at f=100 Hz.The minimum supply current (pin 12) digital (I_p(d)) is 20 A,the typical is 45 A and the maximum is 70 A.The typical supply voltage (pin 12) ripple rejection at 100 mVeff (SVRR) is 7 dB at f=100 Hz.The typical total power dissipation (P_tot) is 0.78 W.Then  is about the composite video inputs (pins 14 and 16).The typical input signal (peak-to-peak value) (V_I(p-p)) is 0.7 V and the maximum is 1.0 V.The maximum input current (non-selected input) (I_I) is 0.1A.The typical input capacitance (C_I) is 5 pF.