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TDA9178 integrated block internal box circuit

2017-01-08 22:17  
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TDA9178 integrated block internal box circuit
TDA9178 integrated block internal box circuit
TDA7297--Two-channel power amplifier IC The TDA7297 is one kind of audio power amplifier which is produced by the PHILIPS company, and it can be used in TV and audio equipments. The TDA7297 is the two-channel stereo power amplifier IC that has the M Dingwang (Mute) control function, the output power is 15Wx2. The audio output mode of the TDA7297 is BTL mode. So this device can be used in wide range of supply voltage (6-8V), and has the function of short-circuit protection, overload protection. The TDA7297 is in the 15-pin single in-line package, the pin functions and data of the Haier Hp-2969U large screen color TV is as shown in table 38. Table 38 the pin functions and data of TDA7297 TDA9178--Single chip YUV picture improvement processing integrated circuit The TDA9178 is one kind of video signal process integrated circuit which is produced by the PHILIPS company, it can be used in large screen and rear projection TV such as the Changhong 51PD28A. 1.Features The TDA9178 uses the YUV input/output mode to complete the Y, U, V signal vector-processing. This circuit includes the luminance signal transient improve circuit, the color signal transient improve circuit (CTL), the line width control circuit (OWC), the video noise reduction TV (VDC), the color clarity improve circuit (CDS).etc. In the luminance signal vector process, you can expand the black level, process the quadrant and correct Y. The TDA9178 IC has the I(2)C bus interface circuit, and the I(2)C bus interface circuit controls the whole circuit. The TDA9178 integrated block internal box circuit is as shown in figure 38.