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TC9402CPD датащи(PDF) 11 Page - TelCom Semiconductor, Inc |
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TC9402CPD датащи(HTML) 11 Page - TelCom Semiconductor, Inc |
11 / 13 page 3-297 TELCOM SEMICONDUCTOR, INC. 7 6 5 4 3 1 2 8 0.5µsec MIN 5.0µsec MIN DELAY = 3µsec INPUT fOUT fOUT/2 Figure 7. DC — 10 kHz F/V Converter TC9400A TC9401A TC9402A +5V 14 VDD V+ V+ fOUT/2 fOUT OUTPUT COMMON 10 9 8 5 3 12 12pF CREF 56 pF SEE EQUATION, PAGE 12 CINT 1000pF RINT 1 M Ω 60pF AMP OUT VO VSS IBIAS 14 10 k Ω 2.2k Ω 100k Ω 2 k Ω –5V +5V ZERO ADJUST 2 7 (TYPICALLY –5V) VREF fIN 11 THRESHOLD DETECTOR 3 µsec DELAY * * * * OPTIONAL IF BUFFER IS NEEDED OFFSET ADJUST VREF OUT IIN 2 – + OP AMP VREF SEE FIGURE 6 6 GND THRESHOLD DETECT Figure 8 . F/V Digital Outputs Input Buffer fOUT and fOUT/2 are not used in the F/V mode. However, these outputs may be useful for some applications, such as a buffer to feed additional circuitry. Then, fOUT will follow the input frequency waveform, except that fOUT will go high 3 µsec after fIN goes high; fOUT/2 will be squarewave with a frequency of one-half fOUT. If these outputs are not used, pins 8, 9 and 10 should be connected to ground. VOLTAGE-TO-FREQUENCY/ FREQUENCY-TO-VOLTAGE CONVERTERS TC9400 TC9401 TC9402 |
Аналогичный номер детали - TC9402CPD |
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Аналогичное описание - TC9402CPD |
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