ADV7520 Datasheet, PDF (1/8 Pages) Analog Devices – Low Power HDMI/DVI Transmitter with Consumer Electronic Control (CEC)

Low Power HDMI/DVI Transmitter with
Consumer Electronic Control (CEC)
ADV7520
FEATURES
General
Low power HDMI/DVI transmitter ideal for portable
applications
CEC controller and buffer reduce system overhead
Incorporates HDMI (v.1.3 with x.v.Color) technology
Compatible with DVI v.1.0 and HDCP 1.3
Single 1.8 V power supply
Video/audio inputs accept logic levels from 1.8 V to 3.3 V
Digital video
80 MHz operation supports all HDTV resolutions from
480i to 1080i
Programmable 2-way color space converter
Supports RGB, YCbCr, and DDR
Supports ITU656-based embedded syncs
Automatic input video format timing detection (CEA-861D)
Digital audio
Supports standard S/PDIF 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
Embedded HDCP keys
On-chip MPU with I²C master to perform HDCP operations
and EDID reading operations
5 V tolerant I²C and HPD I/Os, no extra device needed
No audio master clock needed for supporting S/PDIF and I²S
On-chip MPU reports HDMI events through interrupts and
registers
GENERAL DESCRIPTION
The ADV7520 is an 80 MHz, High-Definition Multimedia
Interface (HDMI™) transmitter with consumer electronic
control (CEC). It supports HDTV formats up to 720p and 1080i
and computer graphic resolutions up to XGA (1024 × 768 @
75 Hz). With the inclusion of HDCP, the ADV7520 allows the
secure transmission of protected content, as specified by the
HDCP 1.3 protocol.
The ADV7520 supports x.v.Color™ (Gamut Metadata) for a
wider color gamut.
The ADV7520 supports both S/PDIF and 8-channel I²S audio. Its
high fidelity, 8-channel I²S can transmit either stereo or 7.1
surround audio at 192 kHz. The S/PDIF can carry stereo linear
APPLICATIONS
Digital video cameras
Digital still cameras
Personal media players
DVD players and recorders
Digital set-top boxes
A/V receivers
HDMI repeaters/splitters
FUNCTIONAL BLOCK DIAGRAM
SCL SDA
INT
I²C
SLAVE
HDCP
CORE
HDCP AND EDID
MICRO-
CONTROLLER
HPD
CLK
VSYNC
HSYNC
DE
D[23:0]
S/PDIF
MCLK
I²S[3:0]
LRCLK
SCLK
REGISTER
CONFIGURATION
LOGIC
HDCP
KEYS
I²C
MASTER
CEC CONTROLLER
BUFFER
VIDEO
DATA
CAPTURE
SYNC
ADJUSTMENT
AND
GENERATION
AUDIO
DATA
CAPTURE
COLOR
SPACE
CONVERSION
ADV7520
TMDS
OUTPUTS
Figure 1.
DDCSCL
DDCSDA
CEC_IO
CEC_CLK
Tx0+/–
Tx1+/–
Tx2+/–
TxC+/–
pulse-code modulation (LPCM) audio or compressed audio,
including Dolby® Digital and DTS®.
The ADV7520 helps reduce system design complexity and cost
by incorporating features such as an internal microprocessor for
high-bandwidth digital content protection (HDCP) operations, an
I²C® master for extended display identification data (EDID)
reading, a single 1.8 V power supply, and 5 V tolerance on the
I²C and hot plug detect pins. For additional information and
resources, see the Applications Information section.
Fabricated in an advanced CMOS process, the ADV7520
is available in a space saving, 64-lead LFCSP. The package is RoHS
compliant and is specified for −25°C to +85°C operation.
Rev. 0
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