Bar LCM Specification SL4238ML-L1

SL4238ML-L1
# APPENDIX-6
Systems Technology Inc.
Bar LCM Specification
■ EXTVBR-B & Local Dimming Design Guide
1) When L-Dim Enable is “L", Vertical Sync Signal = System Dimming with 100Hz or 120Hz frequency.
2) Local Dimming signals are synchronized with V-Sync Freq. of System in T-Con Board.
3) EXTVBR-B Specification ( VCC = 3.3V ) @ Local Dimming
a) High Voltage Range : 2.5 V ~ 3.6 V
b) Low Voltage Range : 0.0 V ~ 0.8 V
EXTVBR-B
Frequency
Rising Time
Falling Time
MAX 1KHz
Recommendation :
100 Hz for PAL
120 Hz for NTSC
MAX 10.0 us
MAX 10.0 us
VDD
VDD*0.9
VDD*0.1
0
Rising Time
Falling Time
Document No.: 1101-4238540L1 Version 0.1
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