ALC-1920 LCD Controller Board

The ALC-1920 combines three of the most popular input formats, HDMI, DisplayPort, and USB-C in a compact general purpose solution for LCD panels up to 1920x1200 resolution. It is an excellent board to start with for panel and project evaluation as well as ideal for many display products. One of the key features of this compact highly reliable controller is the low signal latency from input signal to panel output signal. In addition the controller now uses ceramic capacitors to further improve reliability.

The ALC-1920 is similar to the long-running models ALR-1920 and ALT-1920. There is also a 4K equivalent, the ALC-4096

LCD Panel Connectivity

• Panel connection: LVDS, single or dual channel
• Panel resolutions: Up to 1920x1200. The range of panel resolutions includes all standard panel resolutions as well as custom LCD panel resolutions. For example custom cut panel resolutions can also be supported. The minimum panel resolution supported is 800x600.
• Colors: Up to 3 x 10-bit — 1.06 billion colors
• Panel power: 3.3V, 5V, 10V, 12V, 18V
• Backlight inverter/driver support: PWM (8 bit), DPMS Enable pin (5V or 3.3V)
• Panel Matching & Connection Diagrams: For Connection Diagrams showing setup details for connecting specific LCD panels see the Digital View Controller Solution Generator, click here.
  

Input: HDMI 1.4 (x1)

• 60Hz up to 1920x1200
• 480p, 576p, 720p, 1080i, 1080p

Controls & Interface

• On Screen Display (OSD) menu
• Functions can be called by buttons or via serial port (RS-232)
• DDC/CI is supported on HDMI and DisplayPort
• Infra-red remote control
• USB 2.0 internal header for a touch controller
• Status indicators: dual-color LED
• Plug & Play: DDC 1.2/b compatible

Functions

• Black level, Contrast, Sharpness, Color temperature, Image position, Gamma, Auto source seek, OSD timeout, OSD position, OSD menu rotation, OSD transparency, Select input source, Volume control, Load factory defaults, On-board temperature sensor, Support for ambient light sensor

Audio

• Line out, stereo, no amplification.
• Supports Digital View audio add-on board with OSD volume control.

Power

• Connectors: Molex 43650-0200 compatible or Model 2-pin 0.156" pitch
• Requirements: +12/24VDC, ±5%
• Power consumption: 3W approximately (controller only, not panel or backlight)
• Power limit: 3A total current
• Fuse: resettable type

Performance

• Latency: 12 ms — measured with a Leo Bodnar Video Signal Input Lag Tester, HDMI input, Samsung LTM230HT10 (1920x1080) panel

Mechanical & Environmental

• Board dimensions: 127.0 mm x 101.6 mm (5.00" x 4.00")
• Mounting: 5 grounded mounting holes
• Operating temperature: 0°C to +60°C
• Storage temperature: −40°C to +70°C
• Operating humidity: 10 % to 90 % RH, non-condensing
• Storage humidity: 5 % to 95 % RH, non-condensing
• Board mass: approx. 80 g
• ESD: IEC 61000-4-2 Level 4 (±8 kV contact, ±15 kV air) on the DisplayPort, HDMI and USB-C ports
• 2D and 3D drawings: see Downloads on this page

Firmware update

• Use the Programming board accessory listed below, model PB-MT1. 
• Firmware is obtained directly from Digital View, please use the contact form below.

Compliance & Lifecycle

• RoHS compliant
• REACH SVHC declared
• Conflict Minerals declared
• TAA compliant
• Statement of Volatility: available, see Downloads on this page
• MTBF: in excess of 500,000 hours @ 25°C (calculated using Telcordia SR-332 procedure)
• Warranty: 3 years

Customization

(options*)

• Panel timing
• Video input timing support
• Custom EDID
• Splash screen logo, ie during start-up
• Custom hotkeys , menus, commands
• Build options to omit connectors
• Full PCBA relayout, conformal coatings & other hardware changes
• Software utilities or Apps for RS-232 control