特性
- One single-ended output (LVCMOS or LVTTL levels), output Impedance: 15Ω
- Phase jitter attenuation by the VCXO-PLL using a 25MHz pullable external crystal (XTAL)
- Input frequencies: 25MHz or 125MHz
- Output frequency: 25MHz
- PLL loop bandwidth adjustable by external components
- Absolute pull range is ±50 ppm (using the internal oscillator)
- 25MHz or 125MHz auto input frequency detect
- Full 3.3V or 2.5V supply voltage
- -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) package
描述
The 810251I is a high performance, low jitter/low phase noise VCXO. The 810251i uses a low frequency and low cost pullable crystal to achieve jitter attenuation for synchronous Ethernet applications. The 810251I can take an input of either 25MHz or 125MHz and produce a single LVCMOS output of 25MHz. The device is packaged in a small 16 lead TSSOP package and is ideal for use on space constrained boards typically encountered in most synchronous ethernet applications.