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NHD-7.0C-FT813 Datasheet(PDF) 6 Page - Newhaven Display International, Inc. |
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NHD-7.0C-FT813 Datasheet(HTML) 6 Page - Newhaven Display International, Inc. |
6 / 12 page [6] Electrical Characteristics Item Symbol Condition Min. Typ. Max. Unit Operating Temperature Range TOP Absolute Max -20 - +70 ⁰C Storage Temperature Range TST Absolute Max -30 - +80 ⁰C Supply Voltage VDD - 3.0 3.3 3.6 V Supply Current IDD VDD = 3.3V - 100 - mA “H” Level Input VIH - 2.0 - - V “L” Level Input VIL - - - 0.8 V “H” Level Output VOH - VDD-0.4 - - V “L” Level Output VOL - - - 0.4 V Supply Voltage for LED Backlight Driver VBL - 2.8 3.3 5.5 V Supply Current for LED Backlight Driver IBL VBL = 3.3V - 760 - mA IBL VBL = 5.0V - 440 - mA Backlight PWM Frequency fPWM - 250 - 1000 Hz Optical Characteristics Item Symbol Condition Min. Typ. Max. Unit Optimal Viewing Angles Top ϕY+ CR ≥ 10 - 60 - ⁰ Bottom ϕY- - 50 - ⁰ Left θX- - 60 - ⁰ Right θX+ - 60 - ⁰ Contrast Ratio CR - - 400 - - Luminance LV - 660 830 - cd/m2 Response Time Rise + Fall TR + TF TOP = 25°C - 25 35 ms Capacitive Touch Panel Material Characteristics Property Value Unit IC FT5406EE8 - ITO Glass thickness 0.55 mm Cover Lens Thickness 0.70 mm Surface Hardness ≥6 H Light transmission ≥83% - Operating Humidity 20~90 RH Storage Humidity 20~90 RH Backlight Driver Configuration The Backlight Driver Enable signal is connected to the FT81x backlight control pin. This signal is controlled by two registers: REG_PWM_HZ and REG_PWM_DUTY. REG_PWM_HZ specifies the PWM output frequency – the range available on the FT81x is 250 to 10000Hz, however the on-board backlight driver’s max PWM frequency is 1000Hz. Therefore, for proper use of the PWM function available on this module, the PWM frequency should not exceed 1000Hz. REG_PWM_DUTY specifies the duty cycle – the range is 0 to 128. A value of 0 turns the backlight completely off, while a value of 128 provides maximum backlight brightness. For the above register definitions, please refer to pages 80-81 of the official FT81x Series Programmers Guide: http://www.ftdichip.com/Support/Documents/ProgramGuides/FT81X_Series_Programmer_Guide.pdf |
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