FM Signal Generator and Processing Circuit Using CA3046
The IC (Integrated Circuit) CA3046 is used as discrete transistors in conventional circuits. The amplification of the signal units in this modern world to transmit high extent with negligible losses is carried out by connecting pair of differential transistors. Most of the processing signal generators are designed with custom CA3046 integrated IC’s. It costs low and works effectively with its high performance and speed. Custom Designed Differential Amplifiers and Temperature Compensated Amplifiers are some of the applications carried out with CA3046. Let’s understand it from the base.
CA3046 description:
CA3046 is additive and formed with the combination of 5 NPN transistors. In which the differential two NPN transistors are coupled to form the connected pair. This type of transistors (CA3046) is highly used in the applications of audio VHF range frequencies. It can also be used as the discrete components for the modern fabricated design conventional circuits. The physical appearance of CA3046 is shown below in the fig 1.
Pin configuration and Specifications of CA3046:
CA3046 IC comes with a 14 Pin configuration setup. We can identify the pin specification from the image given below (fig-2)
We can easily identify the pin out configuration of CA3046 in detail from the figure 2
Pin 1–5: From pin 1–5 is a differential pair
Pin 6: This pin is used as a clock pulses input
Pin 7: This pin is output phase from CA3046
Pin 13: This pin is substrate pin of CA3046
Pin 8–12: These pins are phased out pins of CA3046
CA3046 Features:
The features of CA3046 as mentioned by the manufacturer is described as
· Two Matched Transistors
-VBE Match ±5mV
-IIO Match 2µA (Max)
· Low Noise 3.2dB (Typ) at 1kHz
· 5 General Purpose Monolithic Transistors
· Operation From DC to 120MHz
· Wide Operating Current Range
· Full Military Temperature Range
C3046 Applications:
· They are mostly used in VHF range with the three isolated transistors connected for the lower power consumption.
· Custom Designed Differential Amplifiers
· Temperature Compensated Amplifiers
Circuit Diagram and configuration:
Components Required:
All the components used in the circuit is given below with the related direct link from where you can purchase the components with the best offers.
1. CA3046 IC
2. 30pF Capacitor
3. 10nF Capacitor
4. 100nF Capacitor
5. 10uF Capacitor
6. 10pF Capacitor
7. 220 Ohm Resistor
8. 47k variable Resistor
9. 10k Resistor
10. 12k Resistor
12. 9V power supply
tools you will need while performing can be Soldering iron, iron stand, nose pillar, flux and cutters.
Procedure:
1. Arrange the components with respect to the circuit diagram
2. Solder the parts carefully on the PCB with the proper ends connection
3. Connect the IC CA3046 on the bread board or PCB and see the pin configuration carefully
4. Connect the power supply to the circuit
5. Vary the signal generator frequencies for variable outputs
6. By changing the FM signal generator frequency output changes and clock pulses applied for this apparent change
Working and Operation:
The delay output from the CA3046 IC is carried out with the pulse input from the signal generator and output is obtained at the end. We can change the delayed input with the help of variable resistors and coarse frequency output is evaluated.
Conclusion:
CA3046 IC’s are highly used for its speed and effective transmission. The IC is used in various applications like Custom Designed Differential Amplifiers and Temperature Compensated Amplifiers also.
