ZHCSIF5F December 2015 – April 2019 TPS99000-Q1
PRODUCTION DATA.
This section provides a generalized overview, describing the concepts to provide a framework for understanding how the functions within the TPS99000-Q1 support the high dynamic dimming scheme of the full chipset and software.
A Head-Up Display (HUD) system must typically meet a target white point requirement over a wide range of brightness. Covering a wide brightness range requires a combination of continuous and discontinuous modes. Continuous mode will utilize different combinations of RGB sequence duty cycles, time attenuation, and amplitude attenuation. Discontinuous mode will utilize different combinations of the number of discrete pulses of light, photo feedback (TIA) gain, peak current limit settings, and light amplitude DAC settings. These adjustments can be categorized as coarse adjustments and fine adjustments.
Coarse adjustments include:
Fine adjustments include: