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QHW100F1-66W Datasheet The two-gate arrangement of the 3N200 also makes possible a desirable reduction in feedback capacitance by operating in the common-source configuration and ac-grounding Gate No. 2. The reduced capacitance allows operation at maximum gain without neutralization; and, of special im- portance in rf-ampWiers, it reduces local oscillator feedthrough to the antenna. QHW100F1-66W Price The three-terminal port of the DS1804 provides an increment/decrement interface which is activated via a chip-select input. This interface consists of the input signals cs, INC, and U/D. These input signals control a 7-bit up/down counter. The output of the 7-bit up/down counter controls a l of 100 decoder to select wiper position. Additionally, this interface provides for a wiper storage operation using the cs and INC input control pins. The timing diagram for the three-terminalinterface control is shown in Figure 2. In TV Output mode, multiplexed input data, sync and clock signals are input to the CH7012 from the graphics controller's digital output port. A P-OUT clock can be output as a frequency reference to the graphics controller, which is recommended to ensure accurate frequency generation. Horizontal and vertical sync signals are normally set to the CH7012 from the graphics controller, but can be output to the graphics controller as an option. Data will be 2X multiplexed, and the XCLK clock signal can be lX or 2X times the pixel rate. The input data will be encoded into the selected video standard, and output from the video DAC's. The modes supported for TV output are shown in the table below, and a block diagram of the CH7012 is shown on the following page. |
