LV4141W Datasheet, PDF (6/27 Pages) Sanyo Semicon Device – Bi-CMOS LSI For LCD Panel Drive Single Chip IC

LV4141W
Conditions of setting to measure the electric characteristic
Following settings must be made before measurement of electric characteristics.
Setting 1. System reset
Turn ON SW56 and start V56 from GND in order to perform system reset for MOS block.
(See fig. 1-1.)
The default value is set for the serial bus.
Setting 2. Horizontal AFC adjustment
Enter SIG4 (VL = 0mV) to (A) and adjust VR1 so that the width of WL and WH
becomes equal in the TP2 output waveform.(See fig 1-2.)
(Note) In order to measure the 2MHz or more band for measurement items, such as the RGB signal frequency
characteristics, etc., it is necessary to pass through the sample hold circuit via serial bus.
VDD1,VDD2
V56 (RESET)
Tr
Tr > 10μs
Fig.1-1 System reset
SIG4
V-sync
TP2
TP2
Approx.1/2VDD
Fig.1-2 Horizontal AFC adjustment
No.8927-6/27