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參數(shù)資料
| 型號： | SAA4951 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | RES 6.49K OHM 1/16W 0.5% 0402SMD |
| 中文描述： | 內(nèi)存控制器 |
| 文件頁數(shù)： | 2/25頁 |
| 文件大?。?/td> | 95K |
| 代理商： | SAA4951 |
April 1994
2
Philips Semiconductors
Preliminary specification
Memory controller
SAA4951
FEATURES
Support for acquisition, display and deflection PLL
50/100 (or 60/120) Hz scan conversion for different input
data rates: 12, 13.5, 16 and 18 MHz
Support for 4:3 and 14:9 display on a 16:9 screen
(horizontal compression)
Support for Y:U:V data rates of 4:1:1, 4:2:2, and 4:4:4
Horizontal zoom
Still picture
Support for one or two field memories
Support for different video memory types like
TMS 1050/60/70/2970
Progressive scan
Programmable via microcontroller port
Golden Scart option
Support for Multi-PIP.
GENERAL DESCRIPTION
The memory controller SAA4951 has been designed for
high end TV sets using 2f
H
-technics.
The circuit provides all necessary write, read and clock
pulses to control different field memory concepts.
Furthermore the drive signals for the horizontal and
vertical deflection power stages are generated.
The device is connected to a microcontroller via an 8-bit
data bus. The controller receives commands via the
I
2
C-bus. Due to this fact the start and stop conditions of the
main output control signals are programmable and the
SAA4951 can be set in different function modes
depending on the used TV-feature concept.
QUICK REFERENCE DATA
ORDERING INFORMATION
Note
1.
SOT187-2; 1996 December 13.
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
DD
I
DD
T
amb
supply voltage
supply current
operating ambient
temperature
4.5
0
5.0
50
5.5
+70
V
mA
°
C
EXTENDED
TYPE NUMBER
PACKAGE
PINS
PIN
POSITION
MATERIAL
CODE
SAA4951WP
44
PLCC
plastic
SOT187
(1)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA4951WP | Memory controller |
| SAA4952WP | Memory controller |
| SAA4955 | 2.9-Mbit field memory |
| SAA4955TJ | 2.9-Mbit field memory |
| SAA4956TJ | 2.9-Mbit field memory with noise reduction |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA4951WP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Memory controller |
| SAA4952WP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Memory controller |
| SAA4955 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2.9-Mbit field memory |
| SAA4955TJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2.9-Mbit field memory |
| SAA4956TJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2.9-Mbit field memory with noise reduction |
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