TC9402CPD Microchip Technology, TC9402CPD Datasheet

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... PDIP TC9400EJD 0.05% 14-Pin CerDIP TC9401CPD 0.01% 14-Pin PDIP TC9401EJD 0.01% 14-Pin CerDIP TC9402CPD 0.25% 14-Pin PDIP TC9402EJD 0.25% 14-Pin CerDIP 2002 Microchip Technology Inc. © TC9400/9401/9402 General Description The TC9400/TC9401/TC9402 are low cost voltage-to- frequency (V/F) converters, utilizing low power CMOS technology ...

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... TC9400/9401/9402 Functional Block Diagram Integrator Integrator Capacitor Op Amp R IN Input Voltage I IN Reference Capacitor I REF Reference Voltage DS21483B-page 2 Threshold One Detector Shot ÷2 TC9400 © Pulse Output Pulse/2 Output 2002 Microchip Technology Inc. ...

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... R L 10: Full temperature range -0.1V. IN 2002 Microchip Technology Inc. © TC9400/9401/9402 *Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied ...

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... Negative Supply during Operation 7.5 V Operating Range of Positive Supply -7.5 V Operating Range of Negative Supply — V Range of Voltage Reference Input 0.25 % Deviation from ideal Full Scale Transfer Function as a Percentage Full Scale Voltage 100k Hz Frequency Range for Specified Non-Linearity 2002 Microchip Technology Inc. © ...

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... R F ≥ 2kΩ, tested @ 10kΩ 10: Full temperature range -0.1V. IN 2002 Microchip Technology Inc. © TC9400/9401/9402 = -5V 0V -5V 100kΩ, Full Scale = 10kHz, unless otherwise GND REF BIAS Min Typ ...

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... This open drain output is a square wave at one-half the frequency of the pulse output (Pin 8). Output transitions of this pin occur on the rising edge of Pin 8. Input to the Threshold Detector. This pin is the frequency input during F/V operation. No internal connection. Positive power supply connection, typically +5V. through a 100kΩ resistor. SS 2002 Microchip Technology Inc. © ...

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... Offset 10kΩ Adjust 2002 Microchip Technology Inc. © TC9400/9401/9402 input is balanced out by fixed charges from the refer- ence voltage. As the input voltage is increased, the number of reference pulses required to maintain bal- ance increases, which causes the output frequency to also increase ...

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... IN , set V = 10V and adjust for 10kHz output REF to 100kHz, change C to 2pF and C REF INT MAX + V )/2 ±400mV REF C V REF REF C INT 0V to 75pF (metal film IN REF REF 2002 Microchip Technology Inc. © ...

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... Zero Adjust This pin is the non-inverting input of the operational amplifier. The low frequency set point is determined by adjusting the voltage at this pin. 2002 Microchip Technology Inc. © TC9400/9401/9402 4 The inverting input of the operational amplifier and the summing junction when connected in the V/F mode. An input current of 10µ ...

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... An optoisolator can also be used if an isolated output is required; also, see Figure 5-3. RECOMMENDED C VS. V REF REF 1MΩ +10V +25°C A 10kHz 100kHz - (V) REF , REF , REF REF 2002 Microchip Technology Inc. © , ...

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... FIGURE 5-3: FIXED VOLTAGE - SINGLE SUPPLY OPERATION 0 Gain Adjust Offset Adjust R IN 1MΩ 0V–10V V+ 10V 12V 1.4MΩ 15V 2002 Microchip Technology Inc. © TC9400/9401/9402 +12 to +15V 1. 1µF Threshold 11 Detect C 12 INT Amp Out 5.1VZ REF C REF ...

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... Figure 7-2. + TC9400 Frequency 11 DET Input +5V 1.0M 0V GND - )/2 ±400mV. Pin 11's input voltage SS to about 2.5V below the thresh- DD + 10k TC9400 0.01µF 33k 11 DET IN914 1. 10k 0.1µF 4 (b) Single Supply 2002 Microchip Technology Inc. © ...

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... F OUT F /2 will be square wave with a frequency of OUT one-half F . OUT If these outputs are not used, Pins 8, 9 and 10 should be connected to ground (see Figure 7-3 and Figure 7-4). 2002 Microchip Technology Inc. © TC9400/9401/9402 V+ = 10V to 15V GND TC9400 .01µ ...

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... F 8 OUT *Optional/If Buffer is Needed V REF OUT 5 C REF 12pF 56pF INT INT 60pF Amp 1MΩ + 1000pF Out 12 V OUT GND 6 RIPPLE FILTER 5 OUT 47pF .001µF 1M 200 12 .01µF 1M 0.1µ OUT 2 7 – 6 TL071 2002 Microchip Technology Inc. © ...

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... F IN Threshold 11 Detector TC9400 2002 Microchip Technology Inc. © TC9400/9401/9402 In some cases, however, the TC9400 output must be zero at power-on without a frequency input. In such cases, a capacitor connected from Pin usually be sufficient to pulse the TC9400 and provide a Power-on Reset (see Figure 8-1 (a) and (b)). Where ...

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... MIN. .040 (1.02) .020 (0.51) .015 (0.38) .008 (0.20) .150 (3.81) MIN. .020 (0.51) .016 (0.41) W Reel Size 2500 13 in .320 (8.13) .290 (7.37) 3° MIN. .400 (10.16) .320 (8.13) Dimensions: inches (mm) 2002 Microchip Technology Inc. © ...

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... SOIC (Narrow) .050 (1.27) TYP. .344 (8.74) .337 (8.56) .010 (0.25) .018 (0.46) .004 (0.10) .014 (0.36) 2002 Microchip Technology Inc. © TC9400/9401/9402 PIN 1 .260 (6.60) .240 (6.10) .040 (1.02) .020 (0.51) .015 (0.38) .008 (0.20) ...

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... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. DS21483B-page 18 2002 Microchip Technology Inc. © ...

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... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

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... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...