CH7511B-BF

The Chrontel CH7511B-BF is a cost-effective, low-power semiconductor device that translates Embedded DisplayPort (eDP) signals to LVDS (Low-Voltage Differential Signaling). This device integrates an eDP receiver with an LVDS transmitter, making it suitable for All-In-One PC and notebook applications. It supports eDP Specification version 1.2, with two Main Link Lanes operating at either 1.62Gb/s or 2.7Gb/s. The CH7511B-BF can accept RGB digital formats in 18-bit (6:6:6) or 24-bit (8:8:8) for LVDS output up to a resolution of 1920x1200.

Key features include dynamic refresh rate switching for power saving and support for single or dual port LVDS outputs. The device also incorporates Spread Spectrum control to reduce EMI emissions. Luminance control functions such as Backlight On/Off and PWM are integrated, allowing brightness adjustments via the AUX Channel. The CH7511B-BF supports panel selection via GPIO pins or chip registers and can store the last brightness setting in BOOT ROM for automatic restoration upon power-up.

Designed for seamless integration, the CH7511B-BF leverages the eDP's Link Training routine for quick display bring-up. It supports VESA and CEA timing standards and offers programmable LCD panel power sequences. Panel tuning methods like dithering and 6-bit + FRC are also supported, along with eDP Authentication features.