What happen on voltage level output of DE pin when I set VDD = 1.8V...
AD9880
Not Recommended for New Designs
The AD9880 offers designers the flexibility of an analog interface and High-Definition Multimedia Interface (HDMI™) receiver integrated on a single chip...
Datasheet
AD9880 on Analog.com
AD9980
Not Recommended for New Designs
The AD9980 is a complete, 8-bit, 95 MSPS, monolithic analog interface optimized for capturing YPbPr video and RGB graphics signals. Its 95 MSPS encode...
Datasheet
AD9980 on Analog.com
What happen on voltage level output of DE pin when I set VDD = 1.8V...
Hi,
First of all, AD9880 is not recommended for new designs as per AD9880 Datasheet and Product Info | Analog Devices
The replacement part is ADV7842. So we cannot provide support beyond existing documentation and existing EngineerZone posts. If you have an existing platform for AD9880, we suggest you experiment with that and documentation of AD9880 is available at http://www.analog.com/en/products/audio-video/hdmidvi-switches/ad9880.html#product-documentation
Best Regards,
Jeyasudha.M