TC9400CPD Microchip Technology Inc., TC9400CPD Datasheet

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TC9400CPD

Manufacturer Part Number
TC9400CPD
Description
V/F Converter
Manufacturer
Microchip Technology Inc.
Datasheet

Specifications of TC9400CPD

Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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Manufacturer
Quantity
Price
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Manufacturer:
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Quantity:
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Quantity:
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Features
VOLTAGE-TO-FREQUENCY
• Choice of Linearity
• DC to 100kHz (F/V) or 1Hz to 100kHz (V/F)
• Low Power Dissipation: 27mW (Typ.)
• Single/Dual Supply Operation
• Gain Temperature Stability: ±25 ppm/°C (Typ.)
• Programmable Scale Factor
FREQUENCY-TO-VOLTAGE
• Operation: DC to 100kHz
• Choice of Linearity
• Programmable Scale Factor
Applications
• µP Data Acquisition
• 13-bit Analog-to-Digital Converters
• Analog Data Transmission and Recording
• Phase Locked Loops
• Frequency Meters/Tachometer
• Motor Control
• FM Demodulation
Device Selection Table
©
TC9400COD
TC9400CPD
TC9401CPD
TC9402CPD
TC9400EJD
TC9401EJD
TC9402EJD
- TC9401: 0.01%
- TC9400: 0.05%
- TC9402: 0.25%
- +8V to +15V or ±4V to ±7.5V
- TC9401: 0.02%
- TC9400: 0.05%
- TC9402: 0.25%
2002 Microchip Technology Inc.
Number
Part
Voltage-to-Frequency/Frequency-to-Voltage Converters
Linearity
0.05%
0.05%
0.05%
0.01%
0.01%
0.25%
0.25%
(V/F)
14-Pin CerDIP
14-Pin CerDIP
14-Pin CerDIP
14-Pin SOIC
14-Pin PDIP
14-Pin PDIP
14-Pin PDIP
Package
(Narrow)
-40°C to +85°C
-40°C to +85°C
Temperature
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
°C to +85°C
Range
TC9400/9401/9402
General Description
The TC9400/TC9401/TC9402 are low cost voltage-to-
frequency (V/F) converters, utilizing low power CMOS
technology. The converters accept a variable analog
input signal and generate an output pulse train, whose
frequency is linearly proportional to the input voltage.
The devices can also be used as highly accurate fre-
quency-to-voltage (F/V) converters, accepting virtually
any input frequency waveform and providing a linearly
proportional voltage output.
A complete V/F or F/V system only requires the addi-
tion of two capacitors, three resistors, and reference
voltage.
Package Type
ZERO ADJ
V
ZERO ADJ
V
REF
REF
V
I
GND
OUT
BIAS
V
I
GND
V
OUT
REF
BIAS
14-Pin Plastic DIP/CERDIP
V
REF
I
SS
IN
I
SS
IN
NC = No Internal Connection
1
2
3
4
5
6
7
1
2
3
4
5
6
7
14-Pin SOIC
TC9400
TC9401
TC9402
TC9400
TC9401
TC9402
14
12
13
11
10
8
9
14
13
12
11
10
9
8
V
NC
THRESHOLD
DETECTOR
FREQ/2 OUT
OUTPUT COMMON
PULSE FREQ OUT
AMPLIFIER OUT
THRESHOLD
DETECTOR
V
FREQ/2 OUT
OUTPUT COMMON
PULSE FREQ OUT
NC
AMPLIFIER OUT
DD
DD
DS21483B-page 1

Related parts for TC9400CPD

TC9400CPD Summary of contents

Page 1

... Phase Locked Loops • Frequency Meters/Tachometer • Motor Control • FM Demodulation Device Selection Table Part Linearity Package Number (V/F) TC9400COD 0.05% 14-Pin SOIC (Narrow) TC9400CPD 0.05% 14-Pin PDIP TC9400EJD 0.05% 14-Pin CerDIP TC9401CPD 0.01% 14-Pin PDIP TC9401EJD 0.01% 14-Pin CerDIP TC9402CPD 0.25% ...

Page 2

... 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. ...

Page 3

... 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 ...

Page 4

... 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. © ...

Page 5

... 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 ...

Page 6

... 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. © ...

Page 7

... 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 ...

Page 8

... 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. © ...

Page 9

... 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 ...

Page 10

... 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. © , ...

Page 11

... 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 ...

Page 12

... 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. © ...

Page 13

... 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 ...

Page 14

... 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. © ...

Page 15

... 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 ...

Page 16

... 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. © ...

Page 17

... 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) ...

Page 18

... 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. © ...

Page 19

... Use of Microchip’s products as critical com- ponents in life support systems is not authorized except with express written approval by Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. 2002 Microchip Technology Inc. © TC9400/9401/9402 Trademarks The Microchip name and logo, the Microchip logo, FilterLab, ...

Page 20

... Palazzo Taurus Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883 United Kingdom Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 03/01/ 2002 Microchip Technology Inc. © ...

Page 21

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