CXA2543R Просмотр технического описания (PDF) - Sony Semiconductor

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CXA2543R

Decoder/Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

CXA2543R

Setting Conditions for Measuring Electrical Characteristics

Use the electrical characteristics measurement circuit on page 30 when measuring electrical characteristics.

Also, the TG (timing generator) block must be initialized by performing Settings 1 and 2 below.

Setting 1. System reset

After turning on the power, set SW64 to ON and start up V64 from GND in order to activate the TG block

system reset. (See Fig. 1-1.)

The serial bus will be set to default values.

Setting 2. Horizontal AFC adjustment

Input SIG5 (VL = 0mV) to (A) and adjust V14 so that WL and WH of the TP12 output waveform are the

same. (See Fig. 1-2.)

Note) When measuring a band of 2MHz or more for Y signal frequency response or sharpness response

among the items being measured, the measurement must be made with sample-and-hold timing (serial

bus) set to through (sample-and- hold not performed).

VDD

V64 (PWRST)

TR

TR > 10µs

Fig. 1-1. System reset

SIG5

WS

TP12

WL

WH WL = WH

Fig. 1-2. Horizontal AFC adjustment

– 10 –

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