SIT9121AC-1BF-33E125.000000T

Frequency Stability:	±10ppm
Current - Supply (Disable) (Max):	35mA
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	69mA
Operating Temperature:	-20°C ~ 70°C
Series:	SiT9121
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	125MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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SIT9121AC-1BF-33E125.000000T application field and working principleOscillators are a type of generator or an electronic circuit used to produce periodic signals for many applications. SIT9121AC-1BF-33E125.000000T, which belongs to crystal oscillators family, is specifically designed and manufactured to offer a cost-efficient solution with low phase noise for different kinds of applications. This oscillator offers frequency stability of ±25 ppm, and a maximum frequency of 125MHz. Additionally, it provides 2.5V and 3.3V CMOS output, good phase noise performance, and wide operating temperature range from -40°C up to +85°C. It is also compliant to RoHS directive and leakage current is kept under 10uA.AdvantagesSIT9121AC-1BF-33E125.000000T is available in a packaging size of 3.2x2.5mm and 4 pins. The small size of it enables flexible and seamless integration into smaller and space sensitive applications, eliminating the worry of finding more space for more circuit components.In addition, the outputs of the device are symetrical and allow for a simple and low cost system design. It also has a fast start-up time between 1ms and 10ms and a low jitter performance.Applications SIT9121AC-1BF-33E125.000000T oscillator is suitable for a variety of applications. It is mostly used in wireless infrastructure equipment, base station, cable modem, set-top box, router, WiMAX, Wi-Fi, Bluetooth, GPS as well as broadcasting and receive applications.Working PrincipleSIT9121AC-1BF-33E125.000000T oscillator is a quartz crystal-based device. Internally, it contains a silicon oscillator that works on a quartz resonator which has a small number of thin quartz crystal slices cemented together, each forming a capacitor plate. The resonator is oscillated at its resonant frequency via the positive feedback provided by the oscillator. To ensure a reliable performance, the thin lie of quartz plates must be vibrated naturally. To achieve this, the crystal components use two electrodes such as an anode and a cathode at the top. An electric charge is transferred from the anode to the cathode by making use of a transistor-based inverter. This generates the oscillation on the quartz resonator, creating a series of electrical pulses which have the same frequency as the resonator. ConclusionSIT9121AC-1BF-33E125.000000T crystal oscillator offers high level of time-keeping accuracy and low phase noise performance. This crystal-based oscillator is designed and manufactured using advanced technology, offering an effective and flexible solution to market the needs of different applications. Its wide operating temperature, low power consumption, and compact size make it an ideal choice for many applications.

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