Low Power HDMI/DVI Transmitter

ADV7526

Rev. Sp0

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FEATURES

General

Low power HDMI/DVI transmitter ideal for portable

applications

CEC controller and expanded message buffer (3 messages)

reduce system overhead

HDMI v.1.4a features supported

3D video

Extended colorimetry

Compatible with DVI v.1.0

Optional embedded HDCP keys to support HDCP 1.3

1.8 V supplies for ultralow operating power

Video/audio inputs accept logic levels from 1.8 V to 3.3 V

Digital video

150 MHz operation supports all video and graphics

resolutions from 480i to 1080p

Programmable 2-way color space converter

Supports RGB, YCbCr, DDR

Supports ITU656-based embedded syncs

Automatic input video format timing detection (CEA-861E)

Digital audio

Supports standard SPDIF for stereo LPCM or compressed

audio up to 192 kHz

Special features for easy system design

HDCP operations; reports HDMI events through interrupts

and registers

No audio master clock needed for supporting SPDIF

Compatible with AD9394 HDMI companion chip

5 V generator for Hot Plug detect in portable applications

APPLICATIONS

Cellular handsets

Digital video cameras

Digital still cameras

Personal media players

Gaming

DVD players and recorders

Digital set-top boxes

HDMI repeater

FUNCTIONAL BLOCK DIAGRAM

D[23:0]

VSYNC

HSYNC

DE

CLK

SLAVE

SDA

SCL

HDCP

CORE

HDCP AND EDID

MICRO-

CONTROLLER

MASTER

INT

HPD

DDCSCL

DDCSDA

ADV7526

TMDS

OUTPUTS

CEC

CEC_CLK

CEC CONTROLLER

BUFFER-3MSG

COLOR

SPACE

CONVERSION

SYNC

ADJUSTMENT

AND

GENERATION

AUDIO

DATA

CAPTURE

VIDEO

DATA

CAPTURE

REGISTER

CONFIGURATION

LOGIC

HDCP

KEYS

Tx0±

Tx1±

Tx2±

TxC±

SPDIF

I2S[3:0]

LRCLK

MCLK

SCLK

Figure 1.

GENERAL DESCRIPTION

The ADV7526 is a 150 MHz, high definition multimedia

interface (HDMI®) transmitter with expanded CEC buffer. It

supports HDTV formats up to 1080p and computer graphic

resolutions up to SXGA at 75 Hz.

With the inclusion of embedded HDCP keys, the ADV7526

allows the secure transmission of protected content, as specified

by the HDCP 1.3 protocol.

sampling rate. The SPDIF can carry stereo LPCM audio or

compressed audio, including Dolby® Digital and DTS®.

The ADV7526 helps to reduce system design complexity and

Fabricated in an advanced CMOS process, the ADV7526 is

available in a space-saving, 64-ball, WLCSP surface-mount

package. This package is RoHS compliant and specified to

operate from −25°C to +85°C.

For more information on the ADV7526, contact Analog Devices, Inc., at ATV_VideoTx_Apps@analog.com.