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General Description

The IT66121 is a high-performance and low-power single channel HDMI transmitter, fully compliant

with HDMI 1.3a, HDCP 1.2 and backward compatible to DVI 1.0 specifications. IT66121 also provide

the HDMI1.4 3D feature, which enables direct 3D displays through an HDMI link. The IT66121 serves

to provide the most cost-effective HDMI solution for DTV-ready consumer electronics such as set-top

boxes, DVD players and A/V receivers, as well as DTV-enriched PC products such as notebooks and

desktops, without compromising the performance. Its backward compatibility to DVI standard allows

connectivity to myriad video displays such as LCD and CRT monitors, in addition to the

ever-so-flourishing Flat Panel TVs.

Aside from the various video output formats supported, the IT66121 also supports 8 channels of I2S

digital audio, with sampling rate up to 192kHz and sample size up to 24 bits. IT66121 also support

S/PDIF input of up to 192kHz sampling rate.

The newly supported High-Bit Rate (HBR) audio by HDMI Specifications v1.3 is provided by the

IT66121 in two interfaces: with the four I2S input ports or the S/PDIF input port. With both interfaces

the highest possible HBR frame rate is supported at up to 768kHz

By default the IT66121 comes with integrated HDCP ROMs which are pre-programmed with HDCP

keys that ensures secure digital content transmission. Users need not worry about the procurement

and maintenance of the HDCP keys.

The IT66121 also provides a complete solution of Consumer Electronics Control (CEC) function. This

optional CEC feature of HDMI specification allows the user to control two or more CEC-enabled

devices through HDMI network. With IT66121 embedded CEC PHY, user can use high-level software

API to easily implement all the necessary remote control commands. The CEC bus related protocol is

handled by the CEC PHY which eliminates extra loading of the MCU.

Features

Single channel HDMI transmitter

Compliant with HDMI 1.3a, HDCP 1.2 and DVI 1.0 specifications

Supporting pixel rates from 25MHz to 165MHz

DTV resolutions: 480i, 576i, 480p, 576p, 720p, 1080i up to 1080p

PC resolutions: VGA, SVGA, XGA, SXGA up to UXGA

Various video input interface supporting digital video standards such as:

24-bit RGB/YCbCr 4:4:4 with RB swap option

16/20/24-bit YCbCr 4:2:2 with YC swap option

8/10/12-bit YCbCr 4:2:2 (CCIR-656)

BTA-T1004 format

DE-only interface

DDR option

Support HDMI1.4 3D feature

Frame packing mode up to 1080P@23.98/24Hz and 720P@59.94/60Hz

Top and Bottom up to 1080P@59.94/60Hz

Side-by-Side (Half) up to 1080P@59.94/60Hz

Side-by-Side (Full) up to 720P@59.94/60Hz

Bi-direction Color Space Conversion (CSC) between RGB and YCbCr color spaces with

programmable coefficients.

Digital audio input interface supporting

audio sample rate: 32~192 kHz

sample size: 16~24 bits

four I2S interfaces supporting 8-channel audio

S/PDIF interface supporting PCM, Dolby Digital, DTS digital audio transmission at up to

192kHz

Support for high-bit-rate (HBR) audio such as DTS-HD and Dolby TrueHD through the four I2S

interface or the S/PDIF interface, with frame rates as high as 768kHz

Compatible with IEC 60958 and IEC 61937

Software programmable HDMI output current, enabling user to optimize the performance for

fixed-cable systems or those with pre-defined cable length

MCLK input is optional for audio operation. Users could opt to implement audio input interface with

or without MCLK.

Integrated pre-programmed HDCP keys

Purely hardware HDCP engine increasing the robustness and security of HDCP operation

Monitor detection through Hot Plug Detection and Receiver Termination Detection

Embedded full-function pattern generator

Intelligent, programmable power management

Embedded hardware controlled CEC PHY

Ultra low power consumption, operation power is less than 70mw at 1080p@60Hz format.

64-pin (9x9 mm) QFN package