UPD16750 데이터 시트보기 (PDF) - NEC => Renesas Technology
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UPD16750 Datasheet PDF : 24 Pages
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µPD16750
5. RELATIONSHIP BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE
This product incorporates a 8-bit D/A converter whose odd output pins and even output pins output respectively gray
scale voltages of differing polarity with respect to the LCD’s counter electrode (common electrode) voltage. The D/A
converter consists of ladder resistors.
Figure 5−1 shows the relationship between the driving voltages such as liquid-crystal driving voltages VDD2 and VSS2,
common electrode potential VCOM, and γ -corrected voltages V0 to V15 and the input data. Be sure to maintain the
voltage relationships of
VDD2 − 0.2 V > V0 > V1 > V2 > V3 > V4 > V5 > V6 > V7 > 0.5 VDD2,
0.5 VDD2 − 0.3 V > V8 > V9 > V10 > V11 > V12 > V13 > V14 > V15 > VSS2 + 0.2 V
Figures 5−2 and 5−3 show the relationship between the input data and the output voltage. This driver IC is designed
for only single-sided mounting. Therefore, please do not use it for γ -corrected power supply level inversion in
double-sided mounting.
Figure 5–1. Relationship between Input Data and γ -corrected Power Supplies
0.2 V
VDD2
V0
V1
V2
V3
V4
V5
V6
V7
0.3 V
0.5 VDD2
V8
V9
V10
V11
V12
V13
V14
V15
0.2 V
VSS2
00
20
40
80
Input data (HEX)
C0
E0
FEFF
32
32
64
64
32
32
Split interval
32
32
64
64
32
32
6
Data Sheet S13719EJ4V0DS00
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