National Manuals

The LM1876 is a stereo audio amplifier from Texas Instruments that delivers 20W of continuous average output power into a 4Ω or 8Ω load with THD+N less than 0.1%. It supports independent smooth transition fade-in/out mute and a power conserving standby mode that can be controlled by external logic. The standby current is 4.2mA.

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The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications. The LM1875 delivers 20 watts into a 4Ω or 8Ω load on ±25V supplies. Using an 8Ω load and ±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown. The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range.

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The LM1253A pre-amp is an integrated high voltage triple CRT pre-amp and Analog On Screen Display (OSD) generator. The IC is I2C controlled, and allows control of all the parameters necessary to setup and adjust the brightness and contrast in the CRT display. In addition, it provides a programmable period vertical blanking pulse which is used to blank the G1. The LM1253A pre-amp is designed to work in cooperation with the LM2453 driver, and provides a multiplexed video signal (VideoPlex) interface to enable the DC clamp levels at the cathode to be varied in order to set up the CRT bias and to allow individual adjustment for brightness. The Analog OSD has a selectable palette allowing a wide selection of colors. The preset level of the OSD can be controlled by I2C to suit different CRT displays. The OSD signal is internally mixed with the video signal, before the gain section, and thus gives excellent white tracking of the OSD with the white color point setting of the video. The Brightness settings are also mixed into the video signal before the gain matching controls and consequently give excellent white color point tracking with variations in the Brightness control. An active horizontal blanking signal is added to the video at the output, giving excellent smear performance, and preventing video content dependency

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The document introduces the features and characteristics of LM1253A Monolithic Triple 180 MHz I2C CRT Pre-amp With Integrated Analog On Screen Display (OSD) Generator.

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The LM124/124A is a low power quad operational amplifier produced by Texas Instruments. It has the characteristics of high gain, internal frequency compensation and can be powered by a single power supply or split power supply. The product is widely used in transducer amplifiers, DC gain blocks and various conventional op amp circuits.

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LM124/LM224/LM324/LM2902 is a low power quad operational amplifier with high gain and internal frequency compensation. It can operate from a single power supply or split power supplies and is suitable for transducer amplifiers, DC gain blocks, and other conventional op amp circuits.

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LM124/LM224/LM324/LM2902 is a low power quad operational amplifier designed to operate from a single power supply or split power supplies. It has features such as wide input common-mode voltage range and the ability to swing the output voltage to ground. It is suitable for transducer amplifiers, DC gain blocks, and conventional op amp circuits.

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The LM1262 is an integrated CMOS CRT pre-amp that supports the I2C interface and allows direct control of all the parameters necessary to set up and adjust the gain and contrast in the CRT display. Brightness and bias can be controlled through the DAC outputs and is well matched to the LM2479 and LM2480 integrated bias clamp IC. The LM1262 pre-amp is designed to work in cooperation with the LM246X high gain driver family. Black level clamping of the signal is carried out directly on the AC coupled input signal into the high impedance pream- plifier input, thus eliminating the need for additional black level clamp capacitors. The IC is packaged in an industry standard 24-lead DIP molded plastic package.

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LM1262 is a 200MHz I2C compatible RGB video amplifier system with OSD and DACs. The IC is I2C compatible and allows control of all the parameters necessary to directly setup and adjust the gain and contrast in the CRT display. Brightness and bias can be controlled through the DAC outputs, and is well matched to the LM2479 and LM2480 integrated bias clamp IC. The LM1262 pre-amp is designed to work in cooperation with the LM246X high gain driver family. Black level clamping of the signal is carried out directly on the AC coupled input signal into the high impedance pream- plifier input, thus eliminating the need for additional black level clamp capacitors. The IC is packaged in an industry standard 24-lead DIP molded plastic package.

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LM1267 is an integrated CMOS CRT pre-amplifier with I2C compatible interface and comprehensive video signal parameter control. It can directly set up and adjust the gain and contrast of the CRT display. The LM1267 pre-amplifier works in cooperation with the LM246X high gain driver family, allowing control of brightness and bias through DAC outputs, and is well matched with the LM2479 and LM2480 integrated bias clamp IC.

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LM1267 150 MHz I2C Compatible RGB Video Amplifier System with OSD and DACs

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LM1269 110 MHz I2C Compatible RGB Video Amplifier System with OSD & DACs

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LM1269 110 MHz I2C compatible RGB video amplifier system with OSD & DACs

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The LM1270 is a supplementary IC to the low cost chipset (LCCS). It modifies the video stream prior to the LCCS preamplifier and enhances pictures or motion video through special intermediate frequency boosting. The 200 MHz bandwidth ensures minimal impact on the video change when adding the LM1270. Other functions include measuring the length of the active video and its front porch time, calibration mode for determining image coordinates, data receiver for receiving encoded data on video, window highlight with respect to sync, and video source selection with two analog inputs.

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The LM1270 is a supplementary IC to the low cost chipset (LCCS). It modifies the video stream prior to the LCCS preamplifier and enhances pictures or motion video through special intermediate frequency boosting. The LM1270 also has other functions such as measuring the length of active video and front porch time, calibration mode for determining image coordinates, data receiver for receiving data encoded on video, window highlight feature, and video source selection.

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LM1276 150MHz I2C compatible RGB preamplifier with internal 512 character OSD ROM, 512 character RAM and 4 DACs

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LM2597/LM2597HV is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. It is capable of driving a 0.5A load with excellent line and load regulation, and supports 3.3V, 5V, 12V fixed output and adjustable output. It also features internal frequency compensation, improved line and load specifications, fixed-frequency oscillator, Shutdown /Soft-start, error flag delay and error flag output.

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The LM2597/LM2597HV series are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version, and are packaged in an 8-lead DIP and an 8-lead surface mount package. This series of switching regulators is similar to the LM2594 series, with additional supervisory and performance features added. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation†, improved line and load specifications, fixed-frequency oscillator, Shutdown /Soft-start, error flag delay and error flag output. The LM2597/LM2597HV series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Because of its high efficiency, the cop- per traces on the printed circuit board are normally the only heat sinking needed. A standard series of inductors (both through hole and sur- face mount types) are available from several different manu- facturers optimized for use with the LM2597/LM2597HV se- ries. This feature greatly simplifies the design of switch-

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The LM2596 series is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator. The LM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-lead TO-220 package with several different lead bend options, and a 5-lead TO-263 surface mount package. A standard series of inductors are available from several different manufacturers optimized for use with the LM2596 series. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 80 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown.

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