CH7101B-BF

The Chrontel CH7101B-BF is a low-cost, low-power semiconductor device that integrates an HDMI receiver, three 9-bit video Digital-to-Analog Converters (DACs), and an audio encoder. This IC is capable of converting HDMI signals into VGA outputs with a maximum conversion rate of 200 MHz and supports IIS or SPDIF audio output.

The HDMI receiver is compliant with HDMI 1.4b specification. The DACs are built on a current source architecture, and the VGA output meets the VESA VSIS v1r2 clock jitter target. The device includes an embedded MCU and on-chip flash, enabling features like auto-boot and EDID buffering. Firmware loaded from the embedded flash allows for automatic HDMI input detection, DAC connection detection, and entry into power-saving mode.

Key features include support for CVBS output in NTSC or PAL formats, on-chip audio encoding for 2-channel IIS/SPDIF audio, and support for device boot-up by automatically loading firmware from on-chip flash. It also offers an integrated EDID buffer, TV connection detection, and HDMI input detection. The CH7101B supports Auto Power Saving mode and low stand-by current. It can perform RGB to YCC conversion in ITU-R BT.601 and 709 color spaces. Debugging and firmware updates can be performed via the IIC slave interface and HDMI DDC interface.

The CH7101B-BF is offered in a 40-Pin QFN package measuring 5 x 5 mm. It is RoHS compliant and Halogen free. The commercial version operates within a temperature range of -20 to 70°C.