ANALOG DEVICES ADV7520NK Service Manual
Low Power HDMI/DVI Transmitter with
www.BDTIC.com/IC
FEATURES
General
Low power HDMI/DVI transmitter ideal for portable
applications
CEC c
ontroller and buffer reduce system overhead
Compatible with HDMI v.1.3, DVI v.1.0, and HDCP 1.3
Supports xvYCC functionality
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
8-channel, uncompressed LPCM I
Special features for easy system design
On-chip MPU with I
and EDID reading operations
5 V tolerant I
No audio master clock needed for supporting S/PDIF and I
On-chip MPU reports HDMI events through interrupts and
registers
2 kHz
to 19
2
C master to perform HDCP operations
2
C and HPD I/Os, no extra device needed
2
S audio up to 192 kHz
Consumer Electronic Control (CEC)
ADV7520NK
FUNCTIONAL BLOCK DIAGRAM
SDASCL
I2C
SLAVE
REGISTERCON
FIGURATION
LOGIC
CLK
VSYNC
HSYNC
DE
D[23:0]
S/PDIF
MCLK
I2S[3:0]
LRCLK
SCLK
VIDEO
DATA
CAPTURE
AUDIO
DATA
CAPTURE
The ADV7520NK supports both S/PDIF and 8-channel I2S audio.
Its high fidelity, 8-channel I
2
S
surround audio at 192 kHz. The S/PDIF can carr y stereo linear
pulse-code modulation (LPCM) audio or compressed audio,
including Dolby® Digital and DTS®.
MDA
MCL
HDCP
CORE
SYNC
ADJUSTMENT
AND
GENERATION
COLOR
SPACE
CONVERSION
ADV7520NK
Figure 1.
2
S can transmit either stereo or 7.1
INT
HDCP AND EDID
MICRO-
CONTROLLER
I2C
MASTER
CEC CONTROLLER
BUFFER
HDMI Tx
CORE
HPD
DDCSCL
DDCSDA
CEC
Tx0[1:0]
Tx1[1:0]
Tx2[1:0]
TxC[1:0]
06968-001
APPLICATIONS
Digital video cameras
Digital still cameras
Personal media players
Cellular handsets
DVD players and recorders
Digital set-top boxes
A/V receivers
HDMI repeater/splitter
GENERAL DESCRIPTION
The ADV7520NK is an 80 MHz, high definition multimedia
interface (HDMI™) v.1.3 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 ADV7520NK allows
the secure transmission of protected content, as specified by the
HDCP 1.3 protocol.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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.
The ADV7520NK helps reduce system design complexity and
cost by
incorporating such features as an internal microprocessor
for high-bandwidth digital content protection (HDCP) operations,
2
an 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 ADV7520NK
is a
ble in a space saving, 76-ball CSP_BGA. The package is
vaila
RoHS compliant and is specified for −25°C to +90°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.
ADV7520NK
www.BDTIC.com/IC
TABLE OF CONTENTS
Features.............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
REVISION HISTORY
1/08—Revision 0: Initial Version
Explanation of Test Levels............................................................4
ESD Caution...................................................................................4
Applications Information.................................................................5
Design Resources ..........................................................................5
Document Conventions ...............................................................5
Outline Dimensions..........................................................................6
Ordering Guide .............................................................................6
Rev. 0 | Page 2 of 8
ADV7520NK
www.BDTIC.com/IC
SPECIFICATIONS
Table 1.
Parameter Conditions Temp Test Level
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 BGA (θJC) V 15.2 °C/W
Junction-to-Ambient (θJA) V 59 °C/W
Ambient Temperature Full V −25 +25 +90 °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 UI
VSYNC and HSYNC Delay to DE Rising Edge IV 1 UI
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.
1
Min Typ Max Unit
2
2
Rev. 0 | Page 3 of 8
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