公开(公告)号：US06034539A

公开(公告)日：2000-03-07

申请号：US47900

申请日：1998-03-25

申请人： Jeng-Yan Hwang

发明人： Jeng-Yan Hwang

IPC分类号： H03K19/173 ,  H03K19/177

CPC分类号： H03K19/1732 ,  H01L2224/48091 ,  H01L2224/48137

摘要： A bonding-option architecture is provided for use on an IC package for bonding option selections. The bonding-option architecture includes an option pad and a plurality of bonding entries connected to the option pad, each of the bonding entries being arranged in immediate proximity to one of the bonding points. In this bonding-option architecture, at least a first one of the bonding points is connected via a first one of the pins to an external power point and at least a second one of the bonding points is connected via a second one of the pins to an external ground point when the IC package is mounted on a circuit board. In the case when a high-voltage state logic signal is to be set via the option pad into the internal circuit of the IC chip, the first one of the bonding points is wired to the proximate one of the bonding entries; and in the case when a low-voltage state logic signal is into be set via the option pad to the internal circuit of the IC chip, the second one of the bonding points is wired to the proximate one of the bonding entries.

摘要翻译： 提供了一种用于IC封装上的粘合选项架构，用于粘合选项选择。 接合选项架构包括选项焊盘和连接到选件焊盘的多个焊接条目，每个焊接条目被布置成紧邻其中一个焊接点。 在该接合选择架构中，至少第一个接合点通过第一个引脚连接到外部电源点，并且至少第二个接合点通过第二个引脚连接到 当IC封装安装在电路板上时的外部接地点。 在将高电压状态逻辑信号通过选件焊盘设置到IC芯片的内部电路的情况下，第一个接合点被连接到接合输入端之一; 并且在将低电压状态逻辑信号通过选件焊盘设置到IC芯片的内部电路的情况下，第二个接合点被连接到接合条目中的一个。

公开(公告)号：US5936478A

公开(公告)日：1999-08-10

申请号：US032583

申请日：1998-02-27

申请人： Chien-Hsiung Lee ,  Yuh-Min Lin

发明人： Chien-Hsiung Lee ,  Yuh-Min Lin

IPC分类号： H03K3/0231 ,  H03K3/354 ,  H03B5/02

CPC分类号： H03K3/354 ,  H03K3/0231

摘要： A voltage controlled oscillator (VCO) is provided which can minimize the frequency shift and phase disturbance caused by noise in the input voltage to the VCO. The VCO includes a voltage-to-current converting unit, receiving the input voltage, for generating a bias voltage. A ring-oscillating unit including an odd number of cascaded ring oscillator stages (ROSC) is coupled to the voltage-to-current converting unit for generating an oscillating signal. A bias unit is coupled to the ring-oscillating unit for generating a stable DC bias voltage for the ring-oscillating unit. A current adjustment unit is coupled to the voltage-to-current converting unit and the ring-oscillating unit, which can generate a working current in response to the bias voltage for the ring-oscillating unit. By feeding the bias voltage and the DC bias voltage to the current adjustment unit, a current feedback loop is formed which serves as a current-sampling shunt-mixing circuit producing a stable current output that allows the VCO to produce an oscillating signal with a stable frequency.

摘要翻译： 提供了一种压控振荡器（VCO），其可以将由VCO输入电压中的噪声引起的频移和相位扰动最小化。 VCO包括电压 - 电流转换单元，接收输入电压以产生偏置电压。 包括奇数级联环形振荡器级（ROSC）的振荡单元耦合到电压 - 电流转换单元以产生振荡信号。 偏置单元耦合到环形振荡单元，以产生用于环形振荡单元的稳定的DC偏置电压。 电流调节单元耦合到电压 - 电流转换单元和环形振荡单元，其可以响应于环形振荡单元的偏置电压而产生工作电流。 通过将偏置电压和直流偏置电压馈送到电流调节单元，形成电流反馈回路，其作为电流采样分流混合电路，其产生稳定的电流输出，其允许VCO产生具有稳定的振荡信号 频率。