ZMDC831BTA Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	15.75pF @ 2V, 1MHz
Capacitance Ratio:	6
Capacitance Ratio Condition:	C2/C20
Voltage - Peak Reverse (Max):	25V
Diode Type:	1 Pair Common Cathode
Q @ Vr, F:	300 @ 3V, 50MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SOT-323
Base Part Number:	ZMDC831

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Overview of the ZMDC831BTA

The ZMDC831BTA is a variable capacitance diode or Varicap that can be used in a variety of electronic circuits. Varicaps are used to control the oscillation frequency and phase of an oscillator circuit. They are often used in voltage controlled oscillators and phase locked loops.

Features and Benefits

The ZMDC831BTA has a relatively high capacitance range with a maximum capacitance of 8.1pF. It has a low spread of the capacitance due to its stability over temperature and a control voltage range from 4V to 10V. Additionally, it has low capacitance variation over frequency, low distortion in the control voltage, low leakage current, low dielectric absorption and the ability to be used up to 40V.

Application Areas

The ZMDC831BTA can be used in a variety of electronics applications. It is widely used in radio transmitters and receivers, oscillator circuits, phase locked loops and other frequency control applications.

Working Principle

The ZMDC831BTA works by using a control voltage to create a capacitance change. The control voltage changes the distance between the capacitor plates. This changes the effective capacitance of the device and increases or decreases the frequency of an oscillator circuit. The output frequency of the oscillator is proportional to the control voltage applied to the ZMDC831BTA. As the control voltage increases, the output frequency will increase and vice-versa.

Conclusion

The ZMDC831BTA is a versatile variable capacitance diode. It has a wide range of applications including frequency control, radio transmitters and receivers, oscillator circuits and phase locked loops. It works by using a control voltage to vary the distance between capacitor plates and create a change in the effective capacitance. This leads to a change in the frequency of an oscillator circuit.

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