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TC826 Datasheet(PDF) 11 Page - TelCom Semiconductor, Inc |
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TC826 Datasheet(HTML) 11 Page - TelCom Semiconductor, Inc |
11 / 12 page 3-181 TELCOM SEMICONDUCTOR, INC. 7 6 5 4 3 1 2 8 BAR 4 OFF OFF BAR 3 OFF OFF BAR 2 OFF ON BAR 1 OFF ON BAR 0 ON ON 1. INPUT = 0 A. BAR MODE BAR 4 OFF OFF BAR 3 OFF OFF BAR 2 OFF ON BAR 1 OFF OFF BAR 0 ON OFF 1. INPUT = 0 B. DOT MODE 2. INPUT = 5% OF FULL–SCALE 2. INPUT = 5% OF FULL–SCALE Figure 10. Display Option Formats BAR Format The TC826 power-ups in the BAR mode. BAR/DOT is pulled high internally. This display format is similar to a thermometer display. All bars/LCD segments, including zero, below the bar/LCD segment equaling the input signal level are on. A half-scale input signal, for example, would be displayed with BAR 0 to BAR 20 on. DOT Format By connecting BAR/DOT to VSS through a 1MΩ resistor the DOT mode is selected. Only the BAR LCD segment equaling the input signal is on. The zero segment is on for zero input. This mode is useful for moving cursor or ‘needle’ applications. 9V 8 TC826 12 13 OSC1 14 OSC2 0.1µf EXTERNAL OSCILLATOR A. SINGLE 9V SUPPLY TC826 B. DUAL SUPPLY 0. 1µf 13 OSCILLATOR POWER SUPPLY VDD 8 12 VSS VDD = 5V VSS = 5V Figure 9. External Oscillator Connection LCD Display Format The input signal can be displayed in two formats (Figure 10). The BAR/DOT input (Pin 61) selects the format. The TC826 measurement cycle operates indentically for either mode. TC826 A/D CONVERTER WITH BAR GRAPH DISPLAY OUTPUT |
Similar Part No. - TC826 |
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Similar Description - TC826 |
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