akira LCT-17CHST, Руководство по обслуживанию

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Model No.: LCT17CHST.doc
Version: 1.0
3 TDA9178 :
TDA9178 is an analog signal processor with standard YUV input and output interface .It
provide three main process functions: luminance vector, color vector and spectrum
process. It can finish comprehensive picture improving function independently. The
characteristics of the TDA9178 are below:
z Luminance Transient Improvement (LTI), Colour Transient Improvement (CTI)
z Variable gamma control
z
Self-suitable black level extend control
z Skin color correction, green intensity ,blue extend
z Noise measurement and reduced noise process function
z Line Width Control (LWC)
TDA9178 PIN FUNCTION
Pin Definition Pin Function
1 Sandcastle input Sandcastle input
2 Not connected Grounding
3 ADC input 1 A/D converter input 1
4 ADC input 2 A/D converter input 2
5 ADC input 3 A/D converter input 3
6 Luminance input Y input
7 Address selection input I2C address choose input port
8 U signal input U input
9 V signal input V input
10 Test pin Grounding
11 Serial clock input (I2C-bus) I2C bus clock signal
12 Not connected Not connected
13 Not connected Not connected
14
Serial data input/output
(I2C-bus)
I2C bus data signal
15 Decoupling digital supply Connect decouple capacitor external
16 V signal output V signal output
17 U signal output U signal output
18 Ground Ground
19 Luminance output Y signal input
20 Supply voltage Supply power
21 SCAVEM output Scan velocity modulate output
23 Not connected Grounding
24 Not connected Grounding