Low Power HDMI/DVI Transmitter ADV7526
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 8-channel uncompressed LPCM I2S audio up to 192 kHz Special features for easy system design On-chip MPU with I2C master to perform EDID reading and HDCP operations; reports HDMI events through interrupts and registers 5 V tolerant I2C and HPD I/Os, no extra device needed No audio master clock needed for supporting SPDIF and I2S Compatible with AD9394 HDMI companion chip 5 V generator for Hot Plug detect in portable applications
FUNCTIONAL BLOCK DIAGRAM
SCL SDA INT
I2C SLAVE
HDCP CORE
HDCP AND EDID MICROCONTROLLER
HPD
REGISTER CONFIGURATION LOGIC CLK VSYNC HSYNC DE D[23:0] SPDIF MCLK I2S[3:0] LRCLK SCLK AUDIO DATA CAPTURE VIDEO DATA CAPTURE
HDCP KEYS
I2C MASTER CEC CONTROLLER BUFFER-3MSG
DDCSCL DDCSDA CEC CEC_CLK
SYNC ADJUSTMENT AND GENERATION Tx0± COLOR SPACE CONVERSION Tx1± TMDS OUTPUTS Tx2±
ADV7526
TxC±
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. The ADV7526 supports both SPDIF and 8-channel I2S audio. Its high fidelity 8-channel I2S can transmit stereo up to a 192 kHz 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 cost by incorporating such features as an I2C master for EDID reading and 5 V tolerance on the I2C and Hot Plug™ detect pins. 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.
APPLICATIONS
Cellular handsets Digital video cameras Digital still cameras Personal media players Gaming DVD players and recorders Digital set-top boxes www.DataSheet4U.com HDMI repeater
For more information on the ADV7526, contact Analog Devices, Inc., at
[email protected].
Rev. Sp0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsi.