- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384594 > LM1276AAA (National Semiconductor Corporation) 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs PDF資料下載
參數(shù)資料
| 型號： | LM1276AAA |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| 中文描述： | 150 MHz的I2C兼容的RGB前置放大器512個字符OSD光盤，512個字符RAM和4 DAC的內(nèi)置 |
| 文件頁數(shù)： | 15/50頁 |
| 文件大?。?/td> | 2597K |
| 代理商： | LM1276AAA |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁
Pin Descriptions and Application Information
(Continued)
Pin
No.
18
19
20
Pin Name
Schematic
Description
DAC 3 Output
DAC 2 Output
DAC 1 Output
DAC outputs for cathode cut-off adjustments and
brightness control. The DAC values are set
through the I
2
C compatible bus. A resistor of at
least 1k
should be connected in series with
these outputs for additional ESD protection.
21
22
Analog Ground
Analog V
CC
Ground pin and power supply pin for the output
analog portion of the LM1276. Note the
recommended charge storage and high
frequency capacitors which should be as close to
pins 21 and 22 as possible.
23
24
25
Green Output
Red Output
Blue Output
These are the three video output pins. They are
intended to drive the LM2476 and LM246X
family of cathode drivers. Nominally, about 2V
peak to peak will produce 40V peak to peak of
cathode drive.
26
ABL
The Automatic Beam Limiter input is biased to
the desired beam current limit by R
ABL
and V
BB
and normally keeps D
INT
forward biased. When
the current resupplying the CRT capacitance
(averaged by C
ABL
) exceeds this limit, then D
INT
begins to turn off and the voltage at pin 26
begins to drop. The LM1276 then lowers the
gain of the three video channels until the beam
current reaches an equilibrium value.
27
CLAMP
This pin accepts either TTL or CMOS logic
levels. This pin can also be internally connected
to the Horizontal sync pin. The internal switching
threshold is approximately one-half of V
CC
. An
external series resistor, R, of about 1k is
recommended to avoid overdriving the input
devices. In any event, R must be large enough
to prevent the voltage at pin 27 from going
higher than V
CC
or below GND.
L
www.national.com
15
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM139JAN | Low Power Low Offset Voltage Quad Comparators |
| LM1403 | Precision 2.50V Reference |
| LM1403A | Precision 2.50V Reference |
| LM1403AN | Precision 2.50V Reference |
| LM1403N | Precision 2.50V Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM1279 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:110 MHz RGB Video Amplifier System with OSD |
| LM12791DL WAF | 制造商:Texas Instruments 功能描述: |
| LM1279A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LM1279AN | 功能描述:IC AMP RGB VIDEO SYSTEM 20-DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標準包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LM1279DL WAF | 制造商:Texas Instruments 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。