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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.
LM1269NA PDF Datasheet浏览和下载
Details on the internal registers are covered in the Interface Registers Section. Since the video must be AC coupled to.
Load resistors are not required and are not used in the test circuit, therefore all.
This enables the user to Terminate the undriven amplifier. This is a voltage controlled gain stage which gives no. This stage provides the drive needed for the inputs of a CRT. Download datasheet 2Mb Share this page. The board layout shown in Figure 10 is a good example of trace routing near pin With such a high impedance the DC restoration can appear. Human body model, pF discharged through a 1.
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Pin Descriptions Continued Pin No. Dtaasheet supply, current flows from the supply rail through the. Page 15 Schematic Continued 15 www. Block and Connection Diagram. If a lower line rate is used then a longer clamp pulse may be required. This yields a typical gain change of Human body model, pF discharged through a 1. Proper operation of the LM does require a very accurate reference voltage.
Horizontal blanking is also added to the. C compatible, and allows control of all the pa.
A minimum pulse width of ns is guaranteed for a horizontal line of 15 kHz. This is required for CRT life and X-ray. This limit is guaranteed by design. This block is covered. Functional Description LM, giving a high impedance at the output pin. This pin allows capacitor filtering on the V Ref output and offers an accurate external reference. Proper operation of the LM does require a very. V S is the external supply usually the CRT driver supply rail.
The LM pre-amp is designed to work in cooperation. All functions of the LM are controlled through the I 2 C. It is the difference in. When the EHT current is high enough, the current flowing. This yields a typical gain change of.