ADV7525 Datasheet, PDF (1/2 Pages) Analog Devices – Low Power HDMI/DVI Transmitter

Low Power HDMI/DVI Transmitter
ADV7525
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
80 MHz operation supports all video and graphics
resolutions from 480i to 1080i
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
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
SCL SDA
INT
I²C
SLAVE
HDCP
CORE
HDCP AND EDID
MICRO-
CONTROLLER
HPD
CLK
VSYNC
HSYNC
DE
D[23:0]
SPDIF
MCLK
I2S[3:0]
LRCLK
SCLK
REGISTER
CONFIGURATION
LOGIC
HDCP
KEYS
I²C
MASTER
CEC CONTROLLER
BUFFER-3MSG
VIDEO
DATA
CAPTURE
SYNC
ADJUSTMENT
AND
GENERATION
AUDIO
DATA
CAPTURE
COLOR
SPACE
CONVERSION
ADV7525
TMDS
OUTPUTS
DDCSCL
DDCSDA
CEC
CEC_CLK
Tx0±
Tx1±
Tx2±
TxC±
Figure 1.
GENERAL DESCRIPTION
The ADV7525 is an 80 MHz, high definition multimedia
interface (HDMI®) transmitter with expanded CEC buffer. It
supports HDTV formats up to 1080i and computer graphic
resolutions up to XGA at 75 Hz.
With the inclusion of embedded HDCP keys, the ADV7525
allows the secure transmission of protected content, as specified
by the HDCP 1.3 protocol.
The ADV7525 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 ADV7525 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 ADV7525 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 ADV7525, contact Analog Devices, Inc., at [e-mail].
Rev. Sp0
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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