TC9402CPD Microchip Technology, TC9402CPD Datasheet

IC V-FREQ/FREQ-V CONV 14DIP

TC9402CPD

Manufacturer Part Number
TC9402CPD
Description
IC V-FREQ/FREQ-V CONV 14DIP
Manufacturer
Microchip Technology
Type
Volt to Freq & Freq to Voltr
Datasheets

Specifications of TC9402CPD

Package / Case
14-DIP (0.300", 7.62mm)
Frequency - Max
100kHz
Full Scale
±100ppm/°C
Linearity
±0.25%
Mounting Type
Through Hole
Supply Voltage (max)
15 V
Supply Voltage (min)
8 V
Maximum Operating Temperature
70 C
Minimum Operating Temperature
0 C
Dual Supply Voltage
+/- 5 V
Full Scale Frequency
100 KHz
Linearity Error
+/- 0.5 % FSR
Maximum Dual Supply Voltage
+/- 7.5 V
Minimum Dual Supply Voltage
+/- 4 V
Mounting Style
Through Hole
Operating Supply Voltage
9 V or 12 V
Frequency
100kHz
Full Scale Range
1Hz To 100kHz
Linearity %
0.25%
Supply Voltage Range
± 4V To ± 7.5V
Digital Ic Case Style
DIP
No. Of Pins
14
Frequency Max
100kHz
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
158-1142
158-1142
Features:
VOLTAGE-TO-FREQUENCY
• Choice of Linearity:
• DC to 100 kHz (F/V) or 1 Hz to 100 kHz (V/F)
• Low Power Dissipation: 27 mW (Typ.)
• Single/Dual Supply Operation:
• Gain Temperature Stability: ±25 ppm/°C (Typ.)
• Programmable Scale Factor
FREQUENCY-TO-VOLTAGE
• Operation: DC to 100 kHz
• 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
© 2006 Microchip Technology Inc.
TC9400COD
TC9400CPD
TC9400EJD
TC9401CPD
TC9401EJD
TC9402CPD
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%
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
TC9400/9401/9402
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
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
BIAS
OUT
V
I
GND
V
REF
OUT
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
9
8
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
DS21483C-page 1

Related parts for TC9402CPD

TC9402CPD Summary of contents

Page 1

... 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 © 2006 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 ...

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 DS21483C-page 2 Threshold One Detector Shot ÷2 TC9400 © 2006 Microchip Technology Inc. Pulse Output Pulse/2 Output ...

Page 3

... R L 10: Full temperature range -0.1V. IN © 2006 Microchip Technology Inc. TC9400/9401/9402 *Stresses above 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 Hz Frequency Range for Specified Non-Linearity © 2006 Microchip Technology Inc. ...

Page 5

... R F ≥ 2 kΩ, tested @ 10 kΩ 10: Full temperature range -0.1V. IN © 2006 Microchip Technology Inc. TC9400/9401/9402 = -5V 0V -5V 100 kΩ, Full Scale = 10 kHz, unless otherwise SS 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 100 kΩ resistor. SS © 2006 Microchip Technology Inc. ...

Page 7

... Offset 10 kΩ Adjust FIGURE 3- kHz V/F Converter © 2006 Microchip Technology Inc. TC9400/9401/9402 ence voltage. As the input voltage is increased, the number of reference pulses required to maintain balance increases, which causes the output frequency to also increase. Since each charge increment is fixed, the increase in frequency with voltage is linear ...

Page 8

... PULSE FREQ OUT, so FREQ/2 OUT is a symmetrical square wave at one-half the pulse output frequency. Timing measure- ments can, therefore, be made between successive PULSE FREQ OUT pulses, or while FREQ/2 OUT is high (or low). DS21483C-page 8 © 2006 Microchip Technology Inc. ...

Page 9

... R can be reduced to 20 kΩ, which will BIAS typically produce a maximum full scale frequency of 500 kHz. © 2006 Microchip Technology Inc. TC9400/9401/9402 4.2 Pulse Freq Out This output is an open drain N-channel FET, which provides a pulse waveform whose frequency is propor- tional to the input voltage ...

Page 10

... Locate as close as possible to Pins 12 and 13 related to the analog OUT ) by the transfer equation )( REF REF IN IN FULLSCALE V ≅ μA 10V ≅ MΩ μA typically would be trimmed to IN full scale (see IN INT REF ≤ C ≤ 10C 3C REF INT REF © 2006 Microchip Technology Inc. by ...

Page 11

... Power supplies of ±5V are recommended. For high accuracy requirements, 0.05% line and load regulation and 0.1 μF disc decoupling capacitors, located near the pins, are recommended. © 2006 Microchip Technology Inc. TC9400/9401/9402 5.3 Adjustment Procedure Figure 3-1 shows a circuit for trimming the zero loca- tion ...

Page 12

... Detect C 12 INT Amp Out 5.1 VZ REF C REF TC9400 Zero Adjust 2 6 GND D 1 0.1μ 5 REF 1 I BIAS V 100k SS C INT 4700 pF 470 10k 10k 8 F OUT 10 Output F /2 OUT Frequency 9 Output Common Digital 4 Ground © 2006 Microchip Technology Inc. ...

Page 13

... V IN 0V–10V FIGURE 5-3: Fixed Voltage – Single Supply Operation © 2006 Microchip Technology Inc. TC9400/9401/9402 15V (Fixed 0 8.2 0.01 Gain TC9400 μF kΩ Adjust REF 11 kΩ 0.01 μF Offset 0.2 Adjust 820 IN 180 pF 1 MΩ 100 kΩ OUT IN – V ...

Page 14

... This charge, in turn, flows through the feedback resis- tor, generating voltage pulses at the output of the op amp. A capacitor (C ) across R INT INT pulses into a DC voltage, which is linearly proportional to the input frequency. DS21483C-page 14 ∞ REF REF averages these © 2006 Microchip Technology Inc. ...

Page 15

... IN914 0V (a) ±5V Supply FIGURE 7-1: Frequency Input Level Shifter © 2006 Microchip Technology Inc. TC9400/9401/9402 7.2 Input Voltage Levels The input frequency is applied to the Threshold Detec- tor input (Pin 11). As discussed in the V/F circuit section of this data sheet, the threshold of Pin 11 is approxi- ...

Page 16

... DET IN914 I V BIAS 1.0M REF 7 0.1 μF 1.0k 100k 0.5msec Min Input goes high OUT F /2 OUT FIGURE 7-3: 5 OUT REF .001 μ Amp Out V OUT 6 GND 5.0msec Min Delay = 3msec F/V Digital Outputs © 2006 Microchip Technology Inc. ...

Page 17

... F/V’s response time by using the circuit in Figure 7-1. The circuit is a capaci- tance multiplier, where the output coupling capacitor is multiplied by the AC gain of the op amp. A moderately fast op amp, such as the TL071, should be used. © 2006 Microchip Technology Inc. TC9400/9401/9402 + ...

Page 18

... Pin usually be sufficient to pulse the TC9400 and provide a Power-on Reset (see Figure 8-1 (a) and (b)). Where predictable power-on operation is critical, a more complicated circuit, such as Figure 8-1 (b), may be required CLRA 100 kΩ CD4538 μF will DD ( TC9400 © 2006 Microchip Technology Inc. ...

Page 19

... Microchip Technology Inc. TC9400/9401/9402 User Direction of Feed P Standard Reel Component Orientation for 713 Suffix Device Pitch (P) Part Per Full Reel 12 mm ...

Page 20

... Max. .010 (0.25) .050 (1.27) .004 (0.10) .016 (0.40) Dimensions: inches (mm) .310 (7.87) .290 (7.37) 3° Min. .400 (10.16) .310 (7.87) Dimensions: inches (mm) .010 (0.25) .007 (0.18) © 2006 Microchip Technology Inc. ...

Page 21

... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. © 2006 Microchip Technology Inc. TC9400/9401/9402 CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • ...

Page 22

... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS21483C-page 22 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21483C © 2006 Microchip Technology Inc. ...

Page 23

... PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 24

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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