ANALOG DEVICES ADV7520 Service Manual
Low Power HDMI/DVI Transmitter with
A
T
www.BDTIC.com/IC
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 I
Special features for easy system design
Embedded HDCP keys
On-chip MPU with I
2
C master to perform HDCP operations
and EDID reading operations
5 V tolerant I
2
C and HPD I/Os, no extra device needed
No audio master clock needed for supporting S/PDIF and I
On-chip MPU reports HDMI events through interrupts and
registers
2
S audio up to 192 kHz
Consumer Electronic Control (CEC)
ADV7520
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
SD
SCL
I2C
SLAVE
REGISTER
CONFIGURATION
LOGIC
CLK
VSYNC
HSYNC
DE
D[23:0]
S/PDIF
2
S
MCLK
I2S[3:0]
LRCLK
SCLK
VIDEO
DATA
CAPTURE
AUDIO
DATA
CAPTURE
HDCP
CORE
HDCP
KEYS
SYNC
ADJUSTMENT
AND
GENERATION
COLOR
SPACE
CONVERSION
ADV7520
Figure 1.
IN
HDCP AND EDID
MICRO-
CONTROLLER
I2C
MASTER
CEC CONTROLLER
BUFFER
TMDS
OUTPUTS
HPD
DDCSCL
DDCSDA
CEC_IO
CEC_CLK
Tx0+/–
Tx1+/–
Tx2+/–
TxC+/–
07349-001
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 I
2
high fidelity, 8-channel I
S can transmit either stereo or 7.1
2
S audio. Its
surround audio at 192 kHz. The S/PDIF can carr y stereo linear
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devi ces for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
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
2
I
C® master for extended display identification data (EDID)
reading, a single 1.8 V power supply, and 5 V tolerance on the
2
I
C 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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved.
ADV7520
www.BDTIC.com/IC
TABLE OF CONTENTS
Features .............................................................................................. 1
ESD Caution...................................................................................4
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
Explanation of Test Levels ........................................................... 4
REVISION HISTORY
5/08—Revision 0: Initial Version
Terminology .......................................................................................5
Applications Information .................................................................6
Design Resources ..........................................................................6
Document Conventions ...............................................................6
Outline Dimensions ..........................................................................7
Ordering Guide .............................................................................7
Rev. 0 | Page 2 of 8
ADV7520
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SPECIFICATIONS
Table 1.
Parameter Conditions Temp Test Level1 Min Typ Max Unit
DIGITAL INPUTS
Input Voltage, High (VIH) Full VI 1.4 3.5 V
Input Voltage, Low (VIL) Full VI −0.3 +0.7 V
Input Capacitance 25°C VIII 1.5 pF
THERMAL CHARACTERISTICS
Thermal Resistance
Junction-to-Case (θJC) V 15.2 °C/W
Junction-to-Ambient (θJA) V 59 °C/W
Ambient Temperature Full V −25 +25 +85 °C
DC SPECIFICATIONS
Input Leakage Current (IIL) Full VI −1 +1 μA
AC SPECIFICATIONS
CLK Frequency Full IV 13.5 80 MHz
TMDS Output CLK Duty Cycle Full IV 48 52 %
Input Data Setup Time Full IV 1 ns
Input Data Hold Time Full IV 0.7 ns
TMDS Differential Swing VI 900 1000 1100 mV
VSYNC and HSYNC Delay from DE Falling Edge IV 1 UI2
VSYNC and HSYNC Delay to DE Rising Edge IV 1 UI2
Differential Output Swing
Low-to-High Transition Time 25°C VII 75 175 ps
High-to-Low Transition Time 25°C VII 75 175 ps
AUDIO AC TIMING
Sample Rate I2S and S/PDIF Full IV 32 192 kHz
I2S Setup Time 25°C IV 2 ns
I2S Hold Time 25°C IV 2 ns
1
See the Explanation of Test Levels section.
2
UI = unit interval.
Rev. 0 | Page 3 of 8
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