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参数资料
| 型号： | LC7442E |
| 元件分类： | 画面叠加 |
| 英文描述： | PICTURE-IN-PICTURE IC, PQFP64 |
| 封装： | QFP-64 |
| 文件页数： | 1/23页 |
| 文件大小： | 317K |
| 代理商： | LC7442E |
Overview
The LC7442 and LC7442E are memory controller for PIP
(picture-in-picture) systems for TV sets and VCRs. Since
this IC includes 3 built-in D/A converter circuits on chip,
a component-type PIP system can be constructed by
combining this product with memory and an A/D
converter such as the LC7480.
Features
Horizontal resolution: 600 TV lines*1
Three built-in D/A converter provided on-chip in the
PIP memory controller block
High image quality display provided by vertical filter
function frame display*2
Built-in even/odd field determination circuit
Built-in PLL circuit (requires external LPF)
Handles NTSC/PAL, TV/VCR, and multi-mode systems
(NTSC-PAL)*3
Sub-screen specifications
— Display modes: 2-screen, 3-screen, and
4-screen*2
— Display on/off and frame on/off/color
switching, wipe function
— Supports switching between fixed (4 corners) and
arbitrary (8-bit specification of vertical and
horizontal position) display positions
— The size of the display area can be either variable or
1/9 of the main picture area, i.e 1/3 of the vertical
and 1/3 of the horizontal dimensions of the screen
— Horizontal resolution of about 250 dots (Y signal)
— Gradations (quantization): 64 (6 bits)
Operating power supply voltage: 5 V ±10%
Package: QIP64E, DIP64S
Notes 1.When aspect correction is not performed
D/A clock
Y
15.00 MHz
R-Y
3.75 MHz
B-Y
3.75 MHz
2. The specifications vary with the external memory as listed
in the table below.
Display
Memory
256 k
1 M
1 screen
O
2 screens
×
O
3 screens
×
4 screens
×
Single-screen display consists of displaying only one
screen in 2-screen mode.
O
: Both dynamic and static images can be frame
displayed
: Only dynamic images can be frame displayed
×: Not possible
3. Multi-mode is only supported when 1M of external memory
is provided.
4. See the separate “APPLICATION NOTE” document for
details.
CMOS IC
Ordering number : EN4412A
51795TH (OT) / 73093JN No. 4412-1/22
LC7442, 7442E
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
PIP Controller
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC7444 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Dual VCO |
| LC744E | 制造商:Brady Corporation 功能描述:PRINZING SMALL YELLOW LOCKOUT BOARD |
| LC7450 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LC7450H | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| LC7450M | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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