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PDF LC74982W Data sheet ( Hoja de datos )
| Número de pieza | LC74982W | |
| Descripción | LCD TV Scan Converter IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENN*7023
CMOS IC
LC74982W
LCD TV Scan Converter IC
Preliminary
Overview
The LC74982W is an LCD display scan converter IC that
converts NTSC and PAL TV signals to XGA resolution.
The video signal-processing circuits required to implement
an LCD TV set can be easily formed by combining this IC
with a digital decoder, a microcontroller, and an LCD
panel. Since this IC does not require an external frame
memory for resolution conversion, it can contribute to
minimizing total costs. As additional functionality, it also
provides inputs for personal computer video (up to XGA)
and digital TV (480p/480i). Since LC74982W operation is
based on expansion (resolution increasing) processing,
depending on the input resolution, it can also support use
of, for example, 800 × 600 and 800 × 480 dot resolution
LCD panels. Thus the LC74982W can be used in a wide
range of applications.
Features
• NTSC and PAL input support: 24-bit or 16-bit digital
YCbCr signal input
• PC input support: Personal computer 24-bit digital RGB
signal input at resolutions up to XGA
• DTV (480i / 480p) input: 24-bit or 16-bit digital YCbCr
input
• Two-phase progressive scan RGB 18-bit (24 bit) and 36-
bit (48 bit) signal output
• Simulated increased color-depth processing at 6-bit mode.
Values in parentheses apply in 8-bit mode.
• YCbCr to RGB conversion
• Interlaced to progressive scan conversion
• Resolution conversion (enlargement)
• Variable display size and display position (independently
settable in the horizontal and vertical directions)
• Image quality adjustments: brightness, contrast, color,
sharpness, color phase, black balance, and white balance
• Built-in γ correction (LUT technique. Each 8-bit R, G,
and B signal is independently programmable.)
• Built-in OSD function (8 colors, 253 characters)
• I2C bus interface
• Constant frame-rate processing (identical frame periods
in the input and output signals) adopted so that no
external memory is required.
Specifications
• Supply voltage: 3.3 V (input pins are 5 V tolerant)
• Maximum operating frequency: 65.0 MHz
• Package: SQFP208
Applications
• LCD TVs, monitors, and projectors
• PDP displays
• Car television and car video monitors
Package Dimensions
unit: mm
3210-SQFP208
156
157
[LC74982W]
30.6
28.0
105
104
208
1
(1.25)
(0.5)
53
0.2 52
0.15
SANYO: SQFP208
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
91801TN (OT) No. 7023-1/14
1 page  
www.DataSheet4U.com
LC74982W
Pin Functions
Pin No.
Pin
1 DVSS
2 OSDRIN
3 OSDGIN
4 OSDBIN
5 OSDEN
6 YIN7
7 YIN6
8 YIN5
9 YIN4
10 YIN3
11 YIN2
12 YIN1
13 YIN0
14 DVDD
15 DVSS
16 UIN7
17 UIN6
18 UIN5
19 UIN4
20 UIN3
21 UIN2
22 UIN1
23 UIN0
24 DVDD
25 DVSS
26 VIN7
27 VIN6
28 VIN5
29 VIN4
30 VIN3
31 VIN2
32 VIN1
33 VIN0
34 DVDD
35 DVSS
36 CLKITV
37 DVDD
38 DVSS
39 CLKIDTV
40 DVDD
41 DVSS
42 CLKIPC
43 DVDD
44 SCANMOD
45 SCANEN
46 AVSS
47 PDO
48 AVDD
49 AVSS
50 VCOCNT
51 VCORNG
52 AVDD
I/O type
I/O Type
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Connection
Notes
GND
Caption OSD microcontroller
Caption OSD microcontroller
Caption OSD microcontroller
Caption OSD microcontroller
Digital decoder
or
ADC
or
Digital Interface
Digital system ground
OSD red input (NTSC only)
OSD green input (NTSC only)
OSD blue input (NTSC only)
OSD data enable (NTSC only)
MSB
Y signal input
or
R signal input
Power supply
GND
Digital decoder
or
ADC
or
Digital Interface
Power supply
GND
Digital decoder
or
ADC
or
Digital Interface
LSB
Digital system power supply: 3.3 V
Digital system ground
MSB
C (CbCr multiplexed) signal input
or
Cb signal input
or
G signal input
LSB
Digital system power supply: 3.3 V
Digital system ground
MSB
Cr signal input
or
B signal input
Power supply
GND
Digital decoder
Power supply
GND
PLL
Power supply
GND
Digital interface
Power supply
Open
Open
GND
Loop filter
Power supply
GND
Loop filter
Resistor
Power supply
LSB
Digital system power supply: 3.3 V
Digital system ground
TV clock input (data rate)
Digital system power supply: 3.3 V
Digital system ground
DTV clock input
Digital system power supply: 3.3 V
Digital system ground
PC clock input (data rate)
Digital system power supply: 3.3 V
Scan test mode
Scan test enable
Analog system ground
Charge pump output (open)
Analog system power supply: 3.3 V
Analog system ground
VCO control input (Connect to AVSS.)
VCO bias resistor input (Connect to AVSS.)
Analog system power supply: 3.3 V
Continued on next page.
No. 7023-5/14
5 Page 
www.DataSheet4U.com
LC74982W
Sample Application Circuit (LCD TV/Monitor)
Tuner
VCR
PC
Degital
Decoder
Y (8bit)
CbCr (8bit)
Hsync
Vsync
Pixel clocks
R (8bit)
A/D
G (8bit)
B (8bit)
Hsync
Vsync
PLL Pixel clocks
LC74982W
RO (6bit or 8bit)
GO (6bit or 8bit)
BO (6bit or 8bit)
RE (6bit or 8bit)
GE (6bit or 8bit)
BE (6bit or 8bit)
BLK
Hsync
Vsync
Pixel clocks
TFT-LCD
MODULE
(XGA)
X'Tal
65.0MHz
Microcontroller
LC86F3248A
No. 7023-11/14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet LC74982W.PDF ] | |
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