TEA5114A

TEA5114A RGB SWITCHING CIRCUIT . . . . . 25MHz BANDWIDTH CROSSTALK : 55dB SHORT CIRCUIT TO GROUND OR VCC PROTECTED ANTI SATURATION GAIN CHANGING VIDEO SWITCHING DIP16 (Plastic Package) ORDER CODE : TEA5114A PIN CONNECTIONS DESCRIPTION This integrated circuit provides RGB switching allowing connections between peri TV plug, internal RGB generator and video processor in a TV set. The input signal black level is tied to the same reference voltage on each input in order to have no differential voltage when switching two RGB generators. An AC output signal higher than 2 Vpp makes gain going slowly down to 0dB to protect the TV set video amplifier from saturation. Fast blanking output is a logicial OR between FB1 (Pin 8) and FB2 (Pin 10). BLOCK DIAGRAM R1 INPUT GND R 2 INPUT G1 INPUT G2 INPUT B 1 INPUT B 2 INPUT FB 1 INPUT 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 R OUTPUT FB R INPUT V CC G OUTPUT FB G INPUT B OUTPUT FB 2 + FB B INPUT FB OUTPUT 5114A-01.EPS 16 15 14 13 12 11 10 9 G=2 VREF G=2 G=2 OR 1 2 3 4 5 6 7 8 May 1996 1/4 5114A-02.EPS TEA5114A TEA5114A ABSOLUTE MAXIMUM RATINGS Symbol VCC Tj Tstg ZL Tamb Supply Voltage Junction Temperature Storage Temperature Minimum Load Resistor on Each Output Operating Ambient Temperature VCC = 12 V VCC = 10 V Parameter Value 18 – 40 to 150 – 40 to 150 300 150 0 to 70 Unit V °C °C 5114A-01.TBL 5114A-03.TBL 5114A-02.TBL Ω Ω °C THERMAL DATA Symbol R th(j-a) Parameter Junction-ambient Thermal Resistance Value 80 ...