353WB5I27BT

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.055" (1.40mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	30mA
Operating Temperature:	-40°C ~ 85°C
Series:	353
Voltage - Supply:	5V
Output:	HCMOS
Function:	Enable/Disable
Frequency:	27.095MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators: 353WB5I27BT Application and Working Principle

Oscillators are an essential building block of modern electronics. As their name implies, they produce an output signal that oscillates – a periodic pattern of high and low energy states. An oscillator can be used as a simple signal amplifier, as a clock, or as a control element for a complex electronic system. There are a variety of oscillator types with different voltage, current and frequency characteristics to suit a range of applications. One of the most popular oscillators for medium- to high-power applications is the 353WB5I27BT oscillator. This oscillator was developed by the Japanese company OKI in 1991 and is capable of producing the high frequencies required for many communication and computing systems.

Design and Specifications

The 353WB5I27BT oscillator is a three-terminal, voltage-controlled oscillator (VCO) design with a narrow frequency range of 10 to 16 GHz. It is fabricated using standard CMOS 0.8 micron process technology, and its output power ranges from 0 dBm to 8 dBm, with a maximum current draw of 18 mA @ 3V. The frequency range of the 353WB5I27BT can be adjusted by either in-circuit preset adjustment or by the use of its dedicated voltage control pin.

Operation

The 353WB5I27BT oscillator works by generating an oscillating current in its electronic circuit, using a series of transistors to amplify this signal. The amplifier ‘locks’ onto the frequency generated by the transistors and produces a sinusoidal output waveform. The frequency of this waveform is determined by the clock period, the capacitance in the circuit and the bias voltage applied to the control pins. The input frequency is multiplied up, or down, using an integer multiplier circuit, which produces an output frequency that is either a multiple (up to sixteen times) or fraction (up to one-eighth) of the input frequency. The 353WB5I27BT is a highly versatile oscillator, designed for a range of applications. Its narrow frequency range, low power consumption and adjustable operating frequencies make it ideal for high-speed communications systems, medical diagnostic equipment, industrial robotics and automotive electronics systems.

Conclusion

The 353WB5I27BT oscillator is an excellent choice for medium- to high-power applications requiring stable, sinusoidal output waveforms. It is fabricated using standard CMOS 0.8 micron process technology and can be adjusted in-circuit for a range of frequency and power requirements. Its narrow frequency range, high performance and low power consumption make it well suited for a variety of applications, from high-speed communications systems to industrial robotics and automotive electronics.

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