25M active crystal - active crystal

25M active crystal - active active crystal oscillator has four pins, is a complete oscillator, which in addition to quartz in vitro, as well as transistors and resistive and capacitive elements are mainly applied to the circuit to see if there is a clock circuit, on passive, active or to use crystal, passive crystal oscillator DSP chip needs of passive crystal no voltage problems, the signal level is variable, that is determined based start-up circuit The same crystal can be applied to a variety of voltage, clock signals can be used for a variety of different voltage requirements of DSP, and prices are usually low, so if conditions permit recommended crystal, which is particularly suitable for extensive product line quantities for general use large producers. Active crystal oscillator does not require internal DSP, signal quality, relatively stable, and relatively simple connection (mostly good power filter, commonly used PI type filter network consisting of a capacitor and inductor, the output terminal with a small resistance filtration resistance value signal can be), does not require complex configuration. Circuit has a point marker is 1 foot, counterclockwise (pin down), respectively 2,3,4. Active crystal usual usage: floating foot, two feet grounded, connected to the output of the three-legged, four-legged voltage tap. Its working voltage: 1.8V 2.5V 3.3V and 5V is a complete shaker, no need to add any external circuitry, only need to provide the operating voltage to complete shock and vibration frequency is very stable and is not comparable to passive crystal . Supply category: Spot Whether the inventory: the main characteristics of the active crystal: 1, oscillation circuit without external load capacitors, corresponding to different chips have different built-in capacitance values. 2, the series can maintain frequency stability over a wide temperature range. 3, the oscillator small size, light weight, easy installation, and the more of an oscillation performance. 4, enables hands-free adjustment of the oscillation frequency. 5, the metal shell package from the frequency of the device mainly secondary seal type, is crystal resonator and oscillator circuit matched installed, this will enable the performance of the product is more superior. The main electrical parameters of active crystal: Frequency range: 1MHZ ~ 150MHZ Power supply voltage: 1.8V 2.5V 3.3V 5V Working temperature: -40 ℃ ~ + 85 ℃ Storage temperature: -40 ℃ ~ + 125 ℃ logistics information: Normal delivery usually 3 to 5 days, delivery of freight or courier: general freight logistics for 3 to 5 days, the province courier arrives the same day, Foreign SF Express 2-3 days to reach Germany Crystal Electronic Co., Ltd. Shenzhenshixing /// 25M active crystal - active crystal