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參數(shù)資料
| 型號： | PCA8516P |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 畫面疊加 |
| 英文描述： | Stand-alone OSD |
| 中文描述： | ON-SCREEN DISPLAY IC, PDIP24 |
| 封裝： | 0.400 INCH, PLASTIC, SDIP-24 |
| 文件頁數(shù)： | 48/64頁 |
| 文件大?。?/td> | 403K |
| 代理商： | PCA8516P |
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1995 Mar 30
48
Philips Semiconductors
Preliminary specification
Stand-alone OSD
PCA8516
12.3
Maximum number of rows per frame
The number of rows per frame is a function of the number
of active lines per display field and the number of vertical
dots in the character matrix (which is 18). The number of
rows per frame (N) is calculated as shown below.
The four examples shown below illustrate how the
maximum number of rows per frame is obtained for each
TV scanning standard.
12.3.1
NTSC 525LPF/60 H
Z
The number of active lines per field for this standard is
between 241.5 and 249H (see Fig.41). If the value of 241
is used then the maximum number of rows per frame is 13.
12.3.2
PAL 625LPF/50 H
Z
The number of active lines per field for this standard is 280.
Therefore, the maximum number of rows per frame is 15.
12.3.3
NTSC 1050LPF/60 H
Z
For this standard the number of active lines per frame is
double that of the NTSC 525LPF/60 Hz standard.
However, as HSYNC is divided by two internally, the
maximum number of rows per frame is also 13.
12.3.4
PAL 1250LPF/100 H
Z
With this standard it is not necessary to divide HSYNC by
two as both the horizontal and vertical frequency are
doubled. The maximum number of rows per frame is 15.
N
18
number of active lines per field
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA8516T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stand-alone OSD |
| PCA85176 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCA85176H/Q900/1,5 | 功能描述:LCD 驅(qū)動器 40 SGMT 4800Hz RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| PCA85176H/Q900/1,518 | 制造商:NXP Semiconductors 功能描述:Cut Tape |
| PCA85176H-Q900 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
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