LM1236 datasheet(7/43 Pages) NSC

номер детали	LM1236

подробное описание детали	150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD ROM, 512 Character RAM and 4 DACs

Download	43 Pages

Scroll/Zoom	100%

производитель	NSC [National Semiconductor (TI)]

домашняя страница	http://www.national.com

Logo

7 / 43 page

Compatibility with LM1237 and LM1247 (Continued)

TABLE 2. LM1253A/LM1237 Compatibility

DAC Bias Outputs

LM1236 Pin:

DAC 1

DAC 2

DAC 3

DAC 4

Assignment:

Blue

Green

Red

Brightness

OSD vs Video Intensity

The OSD amplitude has been increased over the LM1237

level. During monitor alignment, the three gain registers are

used to achieve the desired front of screen color balance.

This also causes the OSD channels to be adjusted accord-

ingly, since these are inserted into the video channels prior

to the gain attenuators. This provides the means to fine tune

the intensity of the OSD relative to the video as follows. If a

typical starting point for the alignment is to have the gains at

maximum (0x7F) and the contrast at 0x55, the resultant

OSD intensity will be higher than if the starting point is with

the gains at 0x55 and the contrast at maximum (0x7F). This

tradeoff allows fine tuning the final OSD intensity relative to

the video. In addition, the OSD contrast register, 0x8438

[4:3], provides 4 major increments of intensity. Together,

these allow setting the OSD intensity to the most pleasing

level.

ESD Protection

The LM1236 features a 3.0 kV ESD protection level (see

(Notes 4, 13)). This is provided by special internal circuitry

which activates when the voltage at any pin goes beyond the

supply rails by a preset amount. At that time, the protection is

applied to all the pins, including SDA and SCL.

www.national.com

7

Аналогичный номер детали - LM1236

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	LM123	203Kb / 8P	3-Amp, 5-Volt Positive Regulator
STMicroelectronics	LM123	170Kb / 9P	THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS
Seme LAB	LM123	65Kb / 7P	3 AMP POSITIVE VOLTAGE REGULATORS
Texas Instruments	LM123	1Mb / 13P	[Old version datasheet] 3-Amp, 5-Volt Positive Regulator
Seme LAB	LM123-05	65Kb / 7P	3 AMP POSITIVE VOLTAGE REGULATORS

More results

Аналогичное описание - LM1236

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	LM1246	2Mb / 51P	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
	LM1247	3Mb / 48P	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
	LM1276	2Mb / 50P	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
	LM1237	1Mb / 42P	150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD and 4 DACs
	LM1237	1Mb / 42P	150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD and 4 DACs
	LM1238	1Mb / 24P	110 MHz I2C Compatible RGB Preamplifier with Internal Simple OSD Generator and 4 DACs
	LM1267	1Mb / 20P	150 MHz I2C Compatible RGB Video Amplifier System with OSD and DACs
	LM1262	1Mb / 20P	200 MHz I2C Compatible RGB Video Amplifier System with OSD and DACs
	LM1269	1Mb / 20P	110 MHz I2C Compatible RGB Video Amplifier System with OSD & DACs
Texas Instruments	LM1276	1Mb / 56P	[Old version datasheet] Compatible RGB Preamplifier

More results

LM1236 датащи(PDF) 7 Page - National Semiconductor (TI)

LM1236 датащи(HTML) 7 Page - National Semiconductor (TI)

Аналогичный номер детали - LM1236

Аналогичное описание - LM1236

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

датащи скачать

ссылки URL