LS-1920-HDMI (PRELIMINARY) 
LCD Controller

An efficient switching power architecture generates the board’s internal voltage rails and helps minimize controller power consumption and thermal load. Selectable 3.3V, 5V and 12V panel power allows the standard board to support a range of LVDS panels. 

Firmware can be updated in the field over USB.

The feature set ensures suitability for many commercial display applications, including kiosks, industrial, medical, digital signage, and corporate AV. A full summary of Digital View LCD controllers can be seen here: LCD Controller Summary.

LCD Panel Connectivity

• Panel connection: LVDS (2 channel)
• Panel resolutions: Up to 1920x1080 @ 100Hz, includes standard and custom resolutions
• Colors: 6 or 8-bit per color
• LVDS mapping: VESA and/or JEIDA LVDS mapping, configurable via software/hardware
• Panel timing: Up to 16 stored
• Controller power: +12VDC +/-5%, [TBC - wattage to be measured]
• Panel power: 3.3V, 5V, 12V (jumper selectable), max panel power up to 2A
• Backlight inverter/driver support: PWM, Enable pin (3.3V or 5V, jumper selectable)
• Backlight brightness: PWM control, plus analog brightness VR input
• Panel Matching & Connection Diagrams: For Connection Diagrams showing setup details for connecting specific LCD panels see the Digital View Controller Solution Generator, click here.

Function Interface

• On-screen display (OSD) menu
• Buttons (5-button OSD support, momentary buttons) or IR remote control.
• Serial port (RS-232), Baud rate 9600, 8 bits, 1 stop bit, and no parity, Digital View RS-232 command protocol
• I2C: 3.3V I2C connector (shared with RS-232)
• USB firmware-update via 4-pin header

Functions

• Basic: Black level brightness, Contrast, Sharpness, Color temperature, Gamma
• Other: OSD timeout, OSD position, OSD menu rotation, OSD transparency, OSD menu language.
• Volume control, Load factory defaults.

Audio

• Stereo line-output: Single stereo line output connected to audio line out header
• Output level and impedance: 20mW @ 32 ohm or 40mW @ 16 ohm
• Volume and mute control: 60-step analog PGA control (-60dB to +6dB) and digital PGA volume control (-112dB to +12dB) with fading/mute
• External amplifier not required for low-power audio; required for driving > 2W high-power speakers
• Compatible audio accessory: Onboard 4-pin audio header

Mechanical & Environmental

• Board dimensions: 97mm x 70mm x 11mm with 5 mounting holes
• Maximum component height and board mass: 10mm and 40g
• Operating temperature: 0 C to +70 C
• Storage temperature: -40 C to +85 C
• Operating humidity: 10 % to 90 % RH, non-condensing
• Storage humidity: 5 % to 95 % RH, non-condensing
• ESD: HDMI and USB data lines protected to IEC 61000-4-2 Level 4 (±8 kV contact, ±15 kV air). System-level ESD immunity depends on the final enclosure and grounding, and is the responsibility of the integrator.
• Latency: [TBC - to be measured, DV standard Leo Bodnar test]
• MTBF figure, assumptions and calculation standard

Other

• EDID: EEPROM on the HDMI DDC channel, plus 16KByte system EEPROM for panel EDID and settings storage 
• Audio line out (header) with pre-amp mute control
• Status indicator on board: Power LED (green)
• ESD protection on HDMI and USB ports
• Standby power consumption: [TBC]
• Plug & Play: VESA DDC2B compatible

Customization
(options*)

• Panel timing
• Video input timing support
• Custom EDID
• Splash screen logo, ie during start-up
• Build options to omit connectors
• Full PCBA relayout, conformal coatings & other hardware changes
• Software utilities or Apps for RS-232 control
• Alternative builds - VGA, DP-combo and eDP

Reliability

• MTBF [TBC - to be calculated using Telcordia SR-332 procedure]
• Warranty [TBC - confirm whether standard 3 years applies]