IT6605
Functional Description
The IT6605 is the 3nd generation HDMI receiver and provides complete solutions for HDMI v1.4 Sink
systems, supporting reception and processing of Deep Color video and state-of-the-art digital audio
such as DTS-HD and Dolby TrueHD. The IT6605 with its two HDMI input ports supports color depths
of 10 bits and 12 bits up to 1080p. Advanced processing algorithms are employed to optimize the
performance of video processing such as color space conversion and up/down sampling. The
following picture is the functional block digram of the IT6605, which describes clearly the data flow.
Note that only one the two inputs can be activated at a time.
Figure 2. Functional block diagram of the IT6605
Receiver Analog Frontend (Rcvr. AFE)
The two integrated TMDS receiver analog frontend macros are capable of receiving and decoding
HDMI data at up to 2.25Gbps (with a TMDS clock of 225MHz). Adaptive equalization is employed to
support long cables. Only one port can be actived at a time and the system firmware has total control
over this through register settings.
While not indicated in Figure 2, the two HDMI PWR5V signals of the two respective inputs are also
monitored by the IT6605. The system controller could poll registers to confirm the existence of actually
Feb-2012 Rev:0.92 8/38
www.ite.com.tw
ITE [ ITE TECH.INC. ]
