BU91530KVT-M Datasheet, PDF (38/60 Pages) Rohm – Multi-function LCD Segment Drivers

BU91530KVT-M
3. Line Inversion 1/4 Duty 1/3 Bias Drive Scheme
fo[Hz]
COM1
COM2
COM3
COM4
LCD driver output when all LCD
segment corresponding to COM1,
COM2, COM3 and COM4 are off
LCD driver output when only LCD segments
corresponding to COM1 is on
LCD driver output when only LCD segments
corresponding to COM2 is on.
LCD driver output when only LCD segments
corresponding to COM1 and COM2 are on.
LCD driver output when only LCD segments
corresponding to COM3 is on.
LCD driver output when LCD segments
corresponding to COM4 is on.
LCD driver output when LCD segments
corresponding to COM2 and COM3 are on
LCD driver output when LCD segments
corresponding to COM1, COM2, COM3,
COM4 are on
Figure 26. LCD Waveform (Line Inversion, 1/4 DUTY, 1/3 BIAS)
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
V_LCD
V_LCD1
V_LCD2
0V
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TSZ22111・15・001
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TSZ02201-0P4P0D301190-1-2
19.Aug.2015 Rev.001