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All other trademarks are the property of their respective owners. Using the RSS technique the scope and. This stage provides the drive needed for the inputs of a CRT. Terminate the undriven amplifier. Load resistors are not required and are not used in the test circuit, therefore all the supply current is used by the pre-amp.
The video and OSD blocks are shown for the red channel in Figure 1. The I 2 C signals come in on pins. Minimum video level will occur with. The LM pre-amp is designed to work in cooperation.
H Flyback is an analog signal input from the monitor horizontal scan. Terminate the undriven amplifier inputs to simulate generator loading.
LMNA (NSC) PDF技术资料下载 LMNA 供应信息 IC Datasheet 数据表 (4/20 页)
Test Circuit Note load includes parasitic capacitance. EHT supply, current flows from the supply rail through the. Maximum video level for the OSD window occurs with both bits set to one. A pF cap is charged to the specified voltage, then discharged directly into the. This current level determines the ABL threshold and is given by: A feedback loop is thus established which acts to prevent the average beam current exceeding I ABL.
This stage provides the drive needed for the inputs of a CRT driver. This pin has a very high input impedance and will pick up any high frequency signals routed near it.
The video inputs are pins 5, 6, and 7. This gives 8 different black levels ranging from. Copy your embed code and put on your site: The output of this stage is used as the feedback for the DC restoration loop. The video black level is used for this test. This pin datashedt a very. This voltage is generated in the V Ref block. This enables the user to To insure an accurate voltage over tem.
The OSD signal is. Details on the internal registers are covered in the. The beam current limit circuit application is as. This voltage is generated in. Page 7 Test Circuit Note load includes parasitic capacitance.
Scope and generator response used for testing: Elcodis is a trademark of Elcodis Company Ltd. Bits 0 through 2 in register 08 control.
Block and Connection Diagram.
Human body model, pF discharged through a 1. This pin allows capacitor filtering on the V Ref output and offers an accurate external reference. If a lower line rate is used then a longer. A feedback loop is thus.
LM1269NA PDF Datasheet浏览和下载
Download datasheet 2Mb Share this page. Adtasheet voltages are measured with respect to GND, unless otherwise specified. With such a high impedance the DC restoration can appear. Bits 3 and 4 of register 08h.
(PDF) LM1269NA Datasheet download
Proper operation of the LM does require a very accurate reference voltage. V S is the external supply usually the CRT driver supply rail. Details on the internal registers are covered in the Interface Registers Section.