⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种基于晶圆级封装XTAL/BAW谐振器的多功能时序微系统，实现了亚微瓦功耗的实时时钟（RTC）模式和可编程高频输出。通过开关电阻组实现电流-频率转换，扩展了振荡器调谐范围并线性化频率特性，频率可在1-50MHz连续调节。
Silvio Dalla Piazza2, Felix Staub2, Kai Zoschke3, Charles Alix Manier3, Hermann Oppermann3, James Dekker4, Tommi Suni4, Giorgio Allegato5 CSEM, Neuchatel, Switzerland, Micro Crystal, Grenchen, Switzerland, 3Fraunhofer IZM, Berlin, Germany, 4 VTT, Espoo, Finland, 5STMicroelectronics, Agrate Brianza, Italy I conversion through a bank of switched resistors to extend the oscillator tuning range and linearize the frequency versus current characteristic. By multiplexing the 1x, 3x and 9x outputs, the frequency can be continuously varied between 1 to 50MHz. The temperature sensor configuration is merely obtained by connecting the ring oscillator positive supply (Vr) to the amplifier negative input (Vm) so that both currents and voltages are equal across the ring oscillator and resistor
David Ruffieux1, Nicola Scolari1, Frederic Giroud1, Thanh Chau Le1,