Newhaven Display International NHD-7.0-HDMI-N-RSXN, Руководство пользователя

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NHD 7.0” HDMI TFT User Guide
Rev 1.1
Copyright © 2018 | Newhaven Display International, Inc.
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5
] www.newhavendisplay.com
Interface Description
(Capacitive Touch model shown above as reference)
Num. Description
1)
(LED2)
LED Indicator for Touch – Resistive Touch models only
This is a Red LED that will blink slowly (once per second) if the RTP controller is powered ON, awake, and no touch is
detected. This LED will blink rapidly (5 times per second) if the RTP controller detects a touch.
2)
(LED4)
LED Indicator for Touch – Capacitive Touch models only
This is a Red LED that will illuminate when there is a touch sensed on the CTP.
3)
(LED3)
LED Indicator for Power
This is a Green LED that will illuminate when DC power is supplied to the module.
4)
(CN3)
DC Jack (Center-Positive), 2.00mm ID, 5.50mm OD
This is used to supply power to the display module. A DC power supply in the range of 5V – 7.5V must be used.
The output current rating of the DC power supply should be at least the maximum Supply Current (I
DD
) listed in the Electrical
Characteristics section on the previous page.
5)
(CN4)
Surface Mount Pin Header, 2.54mm pitch, for Backlight PWM
The pin labelled ‘PWM’ is connected directly to the LED driver’s CTRL pin (T.I. TPS61165). This is a multifunctional pin which
can be used for enable control, PWM, and digital dimming. A PWM frequency in the range of 5kHz – 100kHz must be used.
6)
(CN2)
Micro-USB (Type-B) Connector for Touch – Touch Panel models only
This is to connect the Touch Panel of this module to a USB input to act as a USB-HID device.
7)
(LED1)
LED Indicator for Video
This is a Blue LED that will illuminate when there is an active video signal detected.
8)
(CN1)
HDMI (Type-A) Connector
This is a full-size HDMI connector meant to connect the HDMI source signal (Video only) to this module.
The on-board T.I. TFP401A HDMI/DVI Receiver does not scale video resolutions. Therefore, the output resolution of the
source must be 800x480 (WVGA). In most applications, this is automatically detected by the HDMI source.