FN7770026

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	10µA
Height - Seated (Max):	0.071" (1.80mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	40mA
Operating Temperature:	-20°C ~ 70°C
Series:	SaRonix-eCera™ FN
Voltage - Supply:	3.3V
Output:	CMOS
Function:	Enable/Disable
Frequency:	77.76MHz
Type:	XO (Standard)
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Bulk

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Oscillators

An oscillator is an electronic device that circumscribes a digital or analog signal to produce oscillations, which are regularly recurring electric signals. Oscillators are extensively used in a wide array of electronic systems, ranging from computers and automotive systems to communications and test and measurement systems.One example of an oscillator is the FN7770026. This oscillator is a low profile, through-hole mounted (THM) audio frequency (AF) oscillator with a wide temperature tolerance and extremely low power consumption, making it ideal for use in space constrained applications.The FN7770026 has a wide application field, with a particular emphasis on generating sine wave signals with sufficient amplitude to drive transducers like speakers and microphones. It can also be used to generate vibrating signals with low distortion and minimal noise, making it suitable for use in alarm systems, or as a reference signal for precision instrumentation.The working principle of the FN7770026 is based on frequency tailoring. This involves varying the number and strength of the capacitors and resistors used in the oscillator circuits to effect a desired frequency range. The frequency tailoring is also used to adjust the amplitude and phase characteristics of the output signal. The design of the oscillator also allows it to operate in a temperature that ranges from -50°C to +85°C, making it well suited for applications like automotive systems and other applications that operate in extreme environmental conditions.At the core of the FN7770026 is a 2-bit timer with two constant frequency clock inputs. The two input clocks are adjusted to a precise frequency as per the specifications, allowing the circuit to intelligently control the duty cycle of the oscillations. When triggered, the digital signal generator then triggers an RC oscillator with the two clock inputs and a built-in voltage regulator, which is used to provide a constant oscillation amplitude.The output of the circuit is then amplified through an operational amplifier which is configured to run in the linear or binary mode, depending on the user’s requirements. The output waveform is then modulated through the RC filter and the respective components to generate the desired frequency of oscillations.The FN7770026 is designed to run on a low input voltage, making it suitable for battery powered systems. It also features a sleep mode which reduces its power consumption when not used. The oscillator is compact in size, measuring only 8.5mm x 5mm x 1.75mm, making it an ideal fit for space constrained applications. In summary, the FN7770026 is a highly efficient audio frequency oscillator that has an optimal combination of low power consumption, small size, wide temperature tolerance and high output amplitude. It is an ideal solution for applications that require low distortion and minimal noise in their audio signals. The frequency tailoring enables it to generate signals with a wide variety of frequencies and amplitudes, and the sleep mode further extends its power efficiency.

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