Vizio VX32L HDTV Schematic
Service Manual
Model #: VIZIO VX32L HDTV
V, Inc
320A Kalmus Drive Costa Mesa, CA 92626
TEL : +714-668-0588 FAX :+714-668-9099
Top Confidential
Table of Contents
CONTENTS PAGE
Sections
1. Features 1-1
2. Specifications 2-1
3. On Screen Display 3-1
4. Factory Preset Timings
5. Pin Assignment
4-1
5-1
6. Main Board I/O Connections 6-1
7. Theory of Circuit Operation 7-1
8. Waveforms 8-1
9. Trouble Shooting 9-1
10. Block Diagram 10-1
11. Spare parts list 11-1
12. Complete Parts List 12-1
Appendix
1. Main Board Circuit Diagram
2. Main Board PCB Layout
3. Assembly Explosion Drawing
Block Diagram
VIZIO VX32L HDTV Service Manual
VINC Service Manual
VIZIO VX32L HDTV
COPYRIGHT © 2000 V, INC. ALL RIGHTS RESERVED.
IBM and IBM products are registered trademarks of International Business Machines
Corporation.
Macintosh and Power Macintosh are registered trademarks of Apple Computer, Inc.
VINC and VINC products are registered trademarks of V, Inc.
VESA, EDID, DPMS and DDC are registered trademarks of Video Electronics Standards
Association (VESA).
Energy Star is a registered trademark of the US Environmental Protection Agency (EPA).
No part of this document may be copied, reproduced or transmitted by any means for any
purpose without prior written permission from VINC.
FCC INFORMATION
This equipment has been tested and found to comply with the limits of a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy, and if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that the interference will not occur in a particular installation. If this equipment
does cause unacceptable interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures -- reorient or relocate the receiving
antenna; increase the separation between equipment and receiver; or connect the into an
outlet on a circuit different from that to which the receiver is connected.
FCC WARNING
To assure continued FCC compliance, the user must use a grounded power supply cord and
the provided shielded video interface cable with bonded ferrite cores. Also, any unauthorized
changes or modifications to Amtrak products will void the user’s authority to operate this
device. Thus VINC Will not be held responsible for the product and its safety.
CE CERTIFICATION
This device complies with the requirements of the EEC directive 89/336/EEC with regard to
“Electromagnetic compatibility.”
SAFETY CAUTION
Use a power cable that is properly grounded. Always use the AC cords as follows – USA (UL);
Canada (CSA); Germany (VDE); Switzerland (SEV); Britain (BASEC/BS); Japan (Electric
Appliance Control Act); or an AC cord that meets the local safety standards.
VIZIO VX32L HDTV Service Manual
Chapter 1 Features
1. Built in TV channel selector for TV viewing
2. Simulatnueous display of PC and TV images
3. Connectable to PC’s analog RGB port
4. Built in S-video, HDTV, composite video, HDMI and TV out
5. Built in auto adjust function for automatic adjument of screen display
6. Smoothing function enables display of smooth texts and graphics even if
image withresolution lower than 1366x768 is magnified
7. Picture In Picture (PIP) funtion to show TV or VCR/DVD images
8. Power saving to reduce consumption power too less than 3W
9. On Screen Display: user can define display mode (i.e. color, brightness,
contrast, sharpness, backlight), sound setting, PIP, TV channel program,
aspect and gamma or reset all setting.
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Chapter 2 Specification
1. LCD CHARACTERISTICS
LC320W01
Item Specification
Active Screen Size
31.51(800.4mm) inch diagonal
Outline Dimension
Pixel Pitch
Pixel Format 1366 (R,G,Bx3) x 768
Display Color 16.7 M (8-bit + FRC for R,G,B)
Luminance, White 500 cd/m2 (Typ)
Viewing Angle(L/R/U/D) 89/89/89/89
Power Consumption 84 Watt (Typ.) (Vdd line +CCFL line)(at 3.5A)
Weight 6900g (Typ)
Display Mode Transmissive mode, normally black
Surface Treatment Hard coating(3H), AG
760.0mm(H) x 450.0mm(V) x 48.0mm(D) (Typ.)
0.17025mm x 0.51075mm xRGB
2. OPTICAL CHARACTERISTICS
Viewing Angle (CR>10)
Left: 89°typ.
Right: 89°typ.
Top: 89°typ.
Bottom: 89°typ.
3. SIGNAL (Refer to the Timing Chart)
Sync Signal
1) Type: TMDS
2) Input Voltage Level: 100~240 Vac, 50/ 60 Hz
4.Input Connectors
RJ11, D-SUB15PIN (MINI, 3rows), HDMIX2, RCAX2 (component), RCAX2 (AUDIO
in), RCAX2 (composite), RCAX2 (AUDIO in), S-Video, Tuner
Output Connectors
Analog audio out (Stereo RCA Jack) , Digital audio out (Optical)
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5. POWER SUPPLY
Power Consumption: 180W MAX
Power OFF: to less than 3W MAX
6.Speaker
Output 10W (max) X2
7. ENVIRONMENT
7-1. Operating Temperature: 5c~35c (Ambient)
7-2. Operating Humidity: Ta= 35 °C, 90%RH (Non-condensing)
7-3. Operating Altitude: 0 - 14,000 feet (Non-Operating)
8. DIMENSIONS (Physical dimension)
Width: 797.00 mm.
Depth: 593.00mm
Height: 263.7mm
9. WEIGHT (Physical weight)
a. Net: 15.0+/-0.5kgs
b. Gross: 20+/-0.5kgs
Please pay attention to the followings when you use this TFT LCD module.
9-1. MOUNTING PRECAUTIONS
(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted
stress) is not applied to the module. And the case on which a module is mounted
should have sufficient strength so that external force is not transmitted directly to
the module.
(3) Please attach the surface transparent protective plate to the surface in order to
protect the polarizer.
Transparent protective plate should have sufficient strength in order to the resist
external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
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(5) Acetic acid type and chlorine type materials for the cover case are not desirable
because the former generates corrosive gas of attacking the polarizer at high
temperature and the latter causes circuit break by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizes with glass, tweezers or
anything harder than HB pencil lead. And please do not rub with dust clothes
with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.(Some
cosmetics are detrimental to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or
other soft materials like chamois soaks with petroleum benzene. Normal-hexane
is recommended for cleaning the adhesives used to attach front / rear polarizers.
Do not use acetone, toluene and alcohol because they cause chemical damage
to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with
polarizer causes deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
9-2. OPERATING PRECAUTIONS
(1) The spike noise causes the mis-operation of circuits. It should be lower than
following voltage :
V=±200mV(Over and under shoot voltage)
(2) Response time depends on the temperature. (In lower temperature, it becomes
longer.)
(3) Brightness depends on the temperature. (In lower temperature, it becomes
lower.)And in lower temperature, response time (required time that brightness is
stable after turned on) becomes longer.
(4) Be careful for condensation at sudden temperature change. Condensation
makes damage to polarizer or electrical contacted parts. And after fading
condensation, smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely to
occur.
(6) Module has high frequency circuits. System manufacturers shall do sufficient
suppression to the electromagnetic interference. Grounding and shielding
methods may be important to minimize the interference.
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9-3. HANDLING PRECAUTIONS FOR PROTECTION
(1) The protection film is attached to the bezel with a small masking tape. When the
protection film is peeled off, static electricity is generated between the film and
polarizer. This should be peeled off slowly and carefully by people who are
electrically grounded and with well ion-blown equipment or in such a condition,
etc.
(2) When the module with protection film attached is stored for a long time,
sometimes there remains a very small amount of glue still on the bezel after the
protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the bezel surface or
its vestige is recognized, please wipe them off with absorbent cotton waste or
other soft material like chamois soaked with normal-hexane.
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Chapter 3 On Screen Display
Main unit button
Power
MENU
CH ▲
CH ▼
VOL +
VOL -
Input
TV Source
A. PICTURE：
a. PICTURE MODE (CUSTOM/ STANDARD / MOVIE / GAME)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR (0~100)
f. TINT (-32~32)
g. SHARPNESS (0~100)
h. COLOR TEMPERATURE (CUSTOM/COOL/NORMAL/WARM)
i. ADVANCED VIDEO
i-1. DNR(OFF/LOW/MEDIUM/STRONG)
i-2. BLACK LEVEL EXTENDER (ON/OFF)
i-3. WHITE PEAK LIMITATOR (ON/OFF)
i-4 CTI(OFF/LOW/MEDIUM/STRONG)
i-5 FLESH TONE (ON/OFF)
i-6 ADAPTIVE LUMA (ON/OFF)
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B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. SPEAKERS (ON/OFF)
C. TV：
a. TUNER MODE (ANTENNA/CABLE)
b. AUTO SEARCH (RUN)
c. SKIP CHANNEL (TABLE)
d. TIME ZONE
(HAWALL/EASTTERN/INDIANA/CENTRAL/MOUNTAIN/ARIZONA/PACIFIC/ALA
SKA)
e. Daylight Saving(ON/OFF)
D. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
c. ANALOG CC (OFF/CC1/CC2/CC3/CC4)
d. DIGITAL CC(OFF/SERVICE1/ SERVICE2/ SERVICE3/ SERVICE4/ SERVICE5/
SERVICE6)
e. DIGITAL CC STYLE
e-1. CAPTION STYLE
(AS BROADCASTER/CUSTOM)
e-2. FONT SIZE(SMALL/MEDIUM/LARGE)
e-3. FONT COLOR
(GREEN/BLUE//RED/CYAN/YELLOW/MAGENTA/BLACK/WHITE)
e-4. FONT OPACITY
(SOLID/TRANSLUCENT/TRANSPARENT)
e-5. BACKGROUND COLOR
(GREEN/BLUE//RED/CYAN/YELLOW/MAGENTA/BLACK/WHITE)
e-6. BACKGROUND OPACITY
(SOLID/TRANSLUCENT/TRANSPARENT)
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e-7. WINDOW COLOR
(GREEN/BLUE//RED/CYAN/YELLOW/MAGENTA/BLACK/WHITE)
e-8. WINDOW OPATITY
(SOLID/TRANSLUCENT/TRANSPARENT)
f. RESET ALL SETTING
E. PARENTAL：
a. PASSWORD
a-1. CHANNEL BLOCK
a-2. TV RATING
a-3. MOVIE RATING
a-4. BLOCK TV UNRATED
a-5. ACCESS CODE EDIT
RGB Mode
A. PICTURE ADJUST：
a. AUTO PICTURE (Run)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR TEMPERATURE(CUSTOM, 6500K, 9300K)
f. H-SIZE (0~255)
g. H-POSITION (0~100)
h. V-POSITION (0~100)
i. FINE TUNE (0~31)
B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. SPEAKERS (ON/OFF)
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C. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
RESET ALL SETTING
AV COMPONENT MODE
AV-C、AV-S、COMPONENT
A. PICTURE：
a. PICTURE MODE (CUSTOM/ STANDARD / MOVIE / GAME)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR (0~100)
f. TINT (-32~32)
g. SHARPNESS (0~100)
h. COLOR TEMPERATURE (CUSTOM/COOL/NORMAL/WARM)
i. ADVANCED VIDEO
i-1. DNR(OFF/LOW/MEDIUM/STRONG)
i-2. BLACK LEVEL EXTENDER (ON/OFF)
i-3. WHITE PEAK LIMITATOR (ON/OFF)
i-4 CTI(OFF/LOW/MEDIUM/STRONG)
i-5 FLESH TONE (ON/OFF)
i-6 ADAPTIVE LUMA (ON/OFF)
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B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. SPEAKERS (ON/OFF)
D. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
c. RESET ALL SETTING
E. PARENTAL：
a. PASSWORD
a-1. CHANNEL BLOCK
a-2. TV RATING
a-3. MOVIE RATING
a-4. BLOCK TV UNRATED
a-5. ACCESS CODE EDIT
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HDMI MODE：
A. PICTURE：
a. PICTURE MODE (CUSTOM/ STANDARD / MOVIE / GAME)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR (0~100)
f. TINT (-32~32)
g. SHARPNESS (0~100)
h. COLOR TEMPERATURE (CUSTOM/COOL/NORMAL/WARM)
i. ADVANCED VIDEO
i-1. DNR(OFF/LOW/MEDIUM/STRONG)
i-2. BLACK LEVEL EXTENDER (ON/OFF)
i-3. WHITE PEAK LIMITATOR (ON/OFF)
i-4 CTI(OFF/LOW/MEDIUM/STRONG)
i-5 FLESH TONE (ON/OFF)
i-6 ADAPTIVE LUMA (ON/OFF)
B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. SPEAKERS (ON/OFF)
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C. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
RESET ALL SETTING
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Chapter4 Factory preset timings
This timing chart is already preset for the TFT LCD analog & digital display
monitors.
Resolution
Refresh
rate
640x480 60Hz 31.5kHz 59.94Hz N N 25.175
640x480 75Hz 37.5kHz 75.00Hz N N 31.500
800X600 60Hz 37.9kHz 60.317Hz P P 40.000
800x600 75Hz 46.9kHz 75.00Hz P P 49.500
800X600 85Hz 53.7kHz 85.06Hz P P 56.250
1024x768 60Hz 48.4kHz 60.01Hz N N 65.000
1024X768 75Hz 60.0kHz 75.03Hz P P 78.750
720x400 70Hz 31.46kHz 70.08Hz N P 28.320
1366X768 60 47.7KHZ 60.00HZ P N 85.500
Remark: P: positive N: negative
Horizontal
Frequency
Vertical
Frequency
Horizontal
Polarity
Vertical
Polarity
Pixel
Rate
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Chapter5 Pin Assignment
The TFT LCD analog display monitors use a 15 Pin Mini D-Sub connector as
video input source.
Pin Description
1 Red
2 Green
3 Blue
4 Ground
5 Ground
6 R-Ground
7 G-Ground
8 B-Ground
9 +5V for DDC
10 Ground
11 No Connection
12 (SDA)
13 H-Sync (Composite Sync)
14 V-Sync
15 (SCL)
1
11
5
106
15
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HDMI CONNECT PIN ASSIGNMENT
PIN SIGNAL ASSIGNMENT
1 TMDS Data2+
2 TMDS Data2 Shield
3 TMDS Data2-
4 TMDS Data1+
5 TMDS Data1 Shield
6 TMDS Data1-
7 TMDS Data0+
8 TMDS Data0 Shield
9 TMDS Data0-
10 TMDS Clock+
11 TMDS Clock Shield
12 TMDS Clock-
13 CEC
14 Reserved (N.C on device)
15 SCL
16 SDA
17 DDC/CEC Ground
18 +5V Power
19 Hot Plug Detect
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Four-Pin mini DIN S-Video Connector
a. Pin Assignment
b. Signal Level Video (Y): Analog 0.1Vp-p/75
Video (C): Analog 0.286p-p/75
Sync (H+V): 0.3V below Video (Y)
c. Frequency H: 15.734KHz V: 60Hz (NTSC)
Signal Level Video (Y) : Analog 0.1Vp-p/75
Video (C) : Analog 0.286p-p/75
Sync (H+V): 0.3V below Video (Y)
Frequency H: 15.734Khz V: 60HZ (NTSC)
F-Type TV RF connector
a. Signal Level 60dBµV typical
b. System NTSC
c. Frequency 55~801MHz (NTSC)
PC connector 15 pin male D-sub connector
a. Pin Assignment Refer to Section 2.3.10
b. Signal Level Video (R, G, B): Analog 0.7Vp-p/75
Sync (H, V): TTL level
RGB Signal:
a. Sync Type TTL (Separate / Composite) or Sync. On Green
b. Sync polarity Positive or Negative
c. Video Amplitude RGB: 0.7Vp-p
d. Frequency H: support to 30K~70KHz
V: support to 50~85Hz
Pixel Clock: support to 110MHz
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HDMI Signal (HDMI):
a. Pin Assignment Refer to HDNI Pin Assignment
b. Type A
c. Polarity Positive or Negative
d. Frequency
H: 15.734KHz V: 60Hz (NTSC-480i)
H: 31KHz V: 60Hz (NTSC-480p)
H: 45KHz V: 60Hz (NTSC-720p)
Component signal
Component
a. Frequency H: 15.734KHz V: 60Hz (NTSC-480i)
b. Signal level Y: 1Vp-p Pb: ±0.350Vp-p Pr: ±0.350Vp-p
c. Impedance 75
H: 33KHz V: 60Hz (NTSC-1080i)
H: 31KHz V: 60Hz (NTSC-480p)
H: 45KHz V: 60Hz (NTSC-720p)
H: 33KHz V: 60Hz (NTSC-1080i)
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Chapter 6 Main Board I/o Connections
J2 CONNECTION (TOP→BOTTOM)
Pin Description
1 “LED WHITE”
2 “LED AMBER”
3 “+5V”
4 “+5V”
5 “IR”
6 “GND”
7 “GND”
8 “ADIN1”
9 “ADIN2”
10 “+3.3V”
J1 CONNECTION (TOP→BOTTOM)
Pin Description
1 “POWRSW”
2 “+12V”
3 “+12V”
4 “+12V”
5 “+12V”
6 “GND”
7 “GND”
8 “GND”
9 “+5V”
10 “+5V”
11 “+5V”
12 “PWM”
13 “BL ON/OFF”
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Chapter 7 Theory of Circuit Operation
The operation of D-SUB 15pin route
The D-SUB 15pin is input analog signal to the MT5372 transfer A/D converter then generates the
vertical and horizontal timing signals for display device.
The operation of HDMII CON route
.Then transfer to the MT5372, the MT5372 generates the vertical and horizontal timing signals for
display device.
The operation of HDTV & Component route
HDTV & Component signal is input to the MT5372 then MT5372 generates the vertical and
horizontal timing signals for display device.
The operation of Video & S-Video route
The Video and S-Video signal is transmission signal to the MT5372 then MT5372 generates the
vertical and horizontal timing signals for display device.
The operation of TV route
TV signal is processes to the tuner and output to MT5372 then MT5372 generates the vertical and
horizontal timing signals for display device. Audio is processes to the tuner output to SIF circuit and
output to MT5372.Then MT5372 process to wm8776 and output to TDA8946AJ transfer to speaker
The operation of DTV route
DTV signal is processes to the tuner and transmission to MT5112 and output signal to MT5372
generates the vertical and horizontal timing signals for display device.
The operation of keypad
There are 7 keys to control and select the function of VX32L and also has one LED to indicate the
status of operation. They are “Power, ▼▲, + -, Input, OSD”.
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MT5372 Application
MT5372 is a highly integrated video and audio single chip processor for emerging
HDTV-Ready LCD TV. It includes one 3D/2D TV Decoder recovering the best image from
CVBS, and in addition, its analog input also support popular S-Video, Component, VGA
video source. On-chip advanced motion adaptive de-interlacer (MDDitm) converts
accordingly the interlace video into smooth non-flicking progressive motion pictures. With
on-chip advanced 2D Graphic processor,MT5372 provides customers with high quality UI
adding significant end product value. Flexible scalar provides wide adoption to various LCD
panel for different video sources. Its on-chip audio processor decodes whole world standard
audio signals from tuner with lip sync control, delivering high quality post-processed sound
effect to customers. On-chip microprocessor and reference FW reduces the system BOM
and shortens the schedule of UI design by high-level C program. With truly SOC design,
MT5372 offers our customers the real cost-effective high performance HDTV-ready solution.
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1. Video input
a. Input Multiplexing
1.component X2
2.composite X2
3.s-videoX1
4.HDMI X1
5.VGA X1
6.RF&DTV X1
b. Input formats:
1.support HDTV 480i/480p/720p/1080p
2.support Y/C signal 1VP-P/75Ω
3.support Y/C signal 1VP-P/75Ω
4.support 480i/408p/720p/1080i/1080p
5.support VGA input up to 1366x168@60HZ
6.support RF NTSC system Frequency 55~801MHZ;DTV 480i/480p/720p/1080p
2. Decoder
TVD
1.Single 2nd generation TV decoder
2.Automatic TV standard detection supporting NTSC, NTSC-4.43,
3.Enhanced 2nd generation NTSC Motion Adaptive 3D comb filter
4.Motion Adaptive 3D Noise Reduction
5.Embedded VBI decoder for Closed-Caption/XDS/ Teletext/WSS/VPS
6.Supporting Macro vision detection
YPbPr
1.Supporting HDTV 480i/480p/576i/576p/720p/1080i input
2.Smart detection on Scart function for European region
VGA
1.Supporting various VGA input timings up to SXGA (1280x1024@75Hz).
2.Supporting Separate/Composite/SOG sync types
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Digital port
1.1 digital port supporting DVI 24-bit RGB or CCIR-656/601 digital video input format
2.1 additional 8 bit digital port for ITU656 video format
VBI
1.Dual VBI decoders for the application of V-Chip/Closed-Caption/XDS/ Teletext/WSS/VPS
2.Supporting external VBI decoder by YPrPb input
3.VBI decoder up to 1000 pages Teletext.
3. Support Formats:
Support NTSC, NTSC-4.43
Automatic Luma / Chroma gain control
Automatic TV standard detection
NTSC Motion Adaptive 3D comb filter
Motion adaptive 3D Noise Reduction
VBI decoder for closed-caption/XDS/Teletext/WSS/VPS
Macro vision detection
4. 2D-Graphic/OSD processor
Embedded two backend RGB domain OSD planes and one YUV domain OSD plane. to support
Main/PIP Teletext/Close-caption functions together with setup menu
1.Supporting alpha blending among these two planes and video
2.Supporting Text/Bitmap decoder
3.Supporting line/rectangle/gradient fill
4.Supporting bitblt
5.Supporting color Key function
6.Supporting Clip Mask
7.65535/256/16/4/2-color bitmap format OSD,
8.Automatic vertical scrolling of OSD image
9.Supporting OSD mirror and upside down
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5. Microprocessor interface
When power is supplied and power key is pressed then the rest circuit lets Reset to low state that
will reset the MT5372 to initial state. After that the Reset will transits to high state and the MT5372
start to work that microprocessor executes the programs and configures the internal registers. The
execution speed of CPU is 162 MHz.
PIP/POP HARDWARE LIMITION:
AV1(S) ATV YPbPr RGB HDMI1 DTV
AV1/2 v v v v
ATV v v v
YPbPr v v
RGB v v
HDMI1 v v v v
DTV v v v v
v v
v v
v
6. Video processor
1.Color Management
Fully 10-bit processing to enhance the video quality
Advanced flesh tone and multiple-color enhancement. (For skin, sky, and grass…)
Gamma/anti-Gamma correction
Advanced Color Transient Improvement (CTI)
Saturation/hue adjustment
2.Contrast/Brightness/Sharpness Management
Sharpness and DLTI/DCTI
Brightness and contrast adjustment
Black level extender
White peak level limiter
Adaptive Luma/Chroma management
3.De-interlacing
2nd generation advanced Motion adaptive de-interlacing
Automatic detect film or video source
3:2/2:2 pull down source detection
Main/PIP 2 independent de-interlacing processor
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4.Scaling
2nd generation high resolution arbitrary ratio vertical/horizontal scaling of video, from 1/32X to
32X
Advanced linear and non-linear Panorama scaling
Programmable Zoom viewer
Picture-in-Picture (PIP)
Picture-Out-Picture (POP)
5.Display
Advanced dithering processing for LCD display with 6/8/10 bit output
10bit gamma correction
Supporting alpha blending for Video and two OSD planes
Frame rate conversion
6.Seamless performance comparing demonstration function
Support Left/Right video processing comparing function without additional resources (DRAM…)
for customers’ demonstration
All the video functions (De-interlace/3D comb/NR/Flesh tone/CTI) can be included
7. DRAM Usage
1.For features of 5372, Dual for enhance features support, and single 8x16 DDR for
simple function support Lists are the comparison chart between function support lists
of (2xDDR) and (1xDDR)
2.For single DDR,5372only support 1080i bob mode de-interlacing. (Non-3D de interlace)
3.With single DDR, it is suggested not to support PIP/POP features. Due to DDR Bandwidth
limitation on PIP when single DDR.
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WM8776 Application
The WM8776 is a high performance, stereo audio codec with five channel input selector. The
WM8776 is ideal for surround sound processing applications for home hi-fi, DVD-RW and other
audiovisual equipment. Etch ADC channel has programmable gain control with automatic level
control. Digital audio output word lengths from 16-32 bits and sampling rates from 32kHZ to 96KHZ
are supported. The DAC has an input mixer allowing an external analogue signal to be mixed with
the DAC signal. There are also Headphone and line outputs, with control for the headphone
The WM8776 supports fully independent sample rates for the ADC and DAC. The audio data
interface supports I2S, left justified, right justified and DSP formats.
BLOCK DIAGRAM
1. Audio sample rate
The master clock forWM8776 supports DAC and ADC audio sampling rates 256fs to 768fs, where
fs is the audio sample frequency (DACLRC or ADCLRC) typically 32KHZ, 44.1KHZ, 48KHZ or
96KHZ (the DAC also supports operation at 128fs and 192fs and 192KHZ sample rate). The
master clock is used to operate the digital filters and the noise shaping circuits.
In slave mode the WM8776 has a master detection circuit that automatically determines the
relationship between the master clock frequency and the sampling rate (to within +/- 32 system
clocks) If there is a greater than 32 clocks error the interface is disabled and ADCLRC/DACLRC
for optical performance, although the WM8776 is tolerant of phase variations or jitter on this clock.
Table shows the typical master clock frequency inputs for the WM8776
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2. DIGITAL AUDIO INTERFACE
1. Slave mode
The audio interfaces operations in either slave mode selectable using the MS control bit. In
slave mode DIN is always an input to the WM8776 and DOUT is always an output. The default
is Slave mode. In slave mode (ms=0) ADCLRC, DACLRC, ADCBCLK, DACBCLK are input to
the WM8776
ADCLRC is sampled on the rising edge of ADCBCLK. ADC data is output on DOUT and
changes on the falling edge of ADCBCLK. By setting control bit BCLKINV the polarity of
ADCBCLK and DACBCLK may be reversed so that DIN and DACLRC are sample on the
falling edge of DACBCLK, ADCLRC is sampled on the falling edge of ADCBCLK and DOUT
changes on the rising of ADCBCLK Slave mode
DIN and DACLRC are sampled by the WM8776 on the rising edge of DACBCLK;
as shown in the following figure.
2. 2 Wire serial control mode
The wm8776 supports software control via a 2-wire serial bus. Many devices can be controlled
by the same bus, and each device has a unique 7-bit address (this is not the same as the 7-bit
address of each register in the wm8776). The wm8776 operates as a slave device only.
2-wire serial interface as shown in the following figure.
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