公开(公告)号：US06747522B2

公开(公告)日：2004-06-08

申请号：US10138027

申请日：2002-05-03

Applicant: David M. Pietruszynski ,  Douglas R. Frey

Inventor： David M. Pietruszynski ,  Douglas R. Frey

IPC: H01G438

CPC classification number: H03K3/0307 ,  H03B5/32 ,  H03B2201/025 ,  H03J2200/10 ,  H03L7/099

Abstract: A method of tuning a DCXO includes the step of providing a coarse tuning array and a fine tuning array of capacitors fabricated on the same integrated circuit die. The coarse array is adjusted until the difference between a desired frequency and the output frequency corresponds to a change in capacitance no greater than half the range of the fine tuning array. In one embodiment, the fine tuning array is adjusted to mid-range before adjusting the coarse tuning array. A DCXO apparatus includes at least one integrated circuit segmented switched capacitor network providing a capacitance that is a nonmonotonic function of a composite input code. The segmented switched capacitor network includes parallel coupled binary weighted and thermometer coded switched capacitor networks for coarse and fine tuning, respectively.

Abstract translation: 调谐DCXO的方法包括提供在同一集成电路管芯上制造的粗调谐阵列和电容器的微调阵列的步骤。 调整粗阵列，直到期望频率和输出频率之间的差值对应于不大于微调阵列范围的一半的电容变化。 在一个实施例中，在调整粗调谐阵列之前，将微调阵列调整到中等范围。 DCXO装置包括至少一个集成电路分段的开关电容器网络，其提供作为复合输入代码的非单调功能的电容。 分段开关电容网络分别包括用于粗调和微调的并联耦合二进制加权和温度计编码的开关电容器网络。

公开(公告)号：US6069866A

公开(公告)日：2000-05-30

申请号：US956934

申请日：1997-10-23

Applicant: David M. Pietruszynski ,  Ion Constantin Tesu

Inventor： David M. Pietruszynski ,  Ion Constantin Tesu

IPC: G11B7/005 ,  G11B20/10 ,  H03G1/00 ,  G11B7/00

CPC classification number: H03G1/0088 ,  G11B20/10009 ,  G11B7/005

Abstract: A system and method for a data detection circuit is provided in which separate coarse gain amplifiers and fine gain amplifiers are utilized. The coarse gain amplifiers may include drain switching of transistors in order to modify the amplifier gain. More particularly, drain switching may be utilized to selectively switch in and out different differential input transistor pairs and/or different current sources. In this manner the gain of the amplifier may be adjusted to one of a variety of different coarse gain control levels. The coarse gain control provided allows for gain adjustments without significantly decreasing the bandwidth of the amplifier. In a preferred embodiment the system and method may be utilized for data detection circuits utilized in conjunction with optical disks.

Abstract translation: 提供了一种用于数据检测电路的系统和方法，其中使用单独的粗增益放大器和细增益放大器。 粗增益放大器可以包括晶体管的漏极切换以便改变放大器增益。 更具体地，可以利用漏极切换来选择性地切换和导出不同的差分输入晶体管对和/或不同的电流源。 以这种方式，可以将放大器的增益调整为各种不同的粗增益控制电平之一。 所提供的粗略增益控制允许增益调整，而不会显着降低放大器的带宽。 在优选实施例中，系统和方法可以用于与光盘结合使用的数据检测电路。

公开(公告)号：US5909150A

公开(公告)日：1999-06-01

申请号：US956596

申请日：1997-10-23

Applicant: Matthew M. Kostelnik ,  David M. Pietruszynski

Inventor： Matthew M. Kostelnik ,  David M. Pietruszynski

IPC: G11B20/14 ,  H03K3/03 ,  H03L7/099 ,  H03L7/183 ,  H03B5/04 ,  H03B5/24

CPC classification number: G11B20/1403 ,  H03K3/03 ,  H03L7/0995 ,  H03L2207/06 ,  H03L7/183

Abstract: A system and method for regulating the voltage at an input node of a varying current demand circuit is provided. The input node may be a power supply node and the varying current demand circuit may be a controllable oscillator. In addition, a frequency synthesizer may be formed from a phase locked loop which includes the controllable oscillator and a voltage control circuit. The voltage control circuit may receive an input control signal that varies as the current demand of the controllable oscillator varies. In response to the input control signal, the voltage control circuit may provide a more stable voltage supply to the controllable oscillator even as the current demands of the oscillator vary widely. The input control signal may be generated by generating a signal from the loop path of the phase locked loop. The frequency synthesizer may be utilized in a data storage system data detection circuit, such as for example, a data detection circuit used for recovering data from an optical disk.

Abstract translation: 提供一种用于调节变化的电流需求电路的输入节点处的电压的系统和方法。 输入节点可以是电源节点，并且变化的电流需求电路可以是可控振荡器。 此外，频率合成器可以由包括可控振荡器和电压控制电路的锁相环形成。 电压控制电路可以接收随着可控振荡器的电流需求变化而变化的输入控制信号。 响应于输入控制信号，即使当振荡器的当前需求变化很大时，电压控制电路也可以向可控振荡器提供更稳定的电压源。 输入控制信号可以通过从锁相环的环路产生信号来产生。 频率合成器可以用在数据存储系统数据检测电路中，例如用于从光盘恢复数据的数据检测电路。

公开(公告)号：US07141883B2

公开(公告)日：2006-11-28

申请号：US10463961

申请日：2003-06-18

Applicant: Derrick C. Wei ,  Ying Shi ,  Kevin G. Smith ,  Steven P. Proffitt ,  Axel Thomsen ,  David M. Pietruszynski ,  Ligang Zhang

Inventor： Derrick C. Wei ,  Ying Shi ,  Kevin G. Smith ,  Steven P. Proffitt ,  Axel Thomsen ,  David M. Pietruszynski ,  Ligang Zhang

IPC: H01L23/48 ,  H01L23/552

CPC classification number: H01L23/552 ,  H01F2017/008 ,  H01L23/645 ,  H01L2224/16225 ,  H01L2924/00014 ,  H01L2924/01079 ,  H01L2924/15311 ,  H01L2924/3025 ,  H01L2224/0401

Abstract: An electromagnetically-shielded high-Q inductor may be fabricated within a multi-layer package substrate (MLS). The inductor is preferably constructed as a loop structure on a layer of the MLS, and a shielding structure is formed around the inductor to substantially enclose the inductor in a Faraday cage-like enclosure. The shielding structure includes a top plate formed above the inductor on another layer of the MLS, and a bottom plate formed on yet another layer of the MLS or on a layer of an integrated circuit die which is below and attached to the MLS, preferably using solder bumps. Shielding structure sidewalls may be formed by a ring of stacked vias or via channels. The inductor is preferably connected to stacked vias which provide a connection to the underlying integrated circuit die by way of additional solder bumps and cut-outs through the bottom plate of the shielding structure.

Abstract translation: 可以在多层封装衬底（MLS）内制造电磁屏蔽的高Q电感器。 电感器优选地构造为MLS层上的环路结构，并且围绕电感器形成屏蔽结构，以将电感器基本上包围在法拉第笼状壳体中。 屏蔽结构包括在MLS的另一层上形成在电感器上方的顶板，以及形成在MLS的另一层上的底板或集成电路管芯的下面并连接到MLS上的层，优选地使用 焊锡凸块 屏蔽结构侧壁可以由堆叠的通孔环或通孔形成。 电感器优选地连接到堆叠的通孔，其通过附加的焊料凸块和穿过屏蔽结构的底板的切口提供到下面的集成电路管芯的连接。

公开(公告)号：US6141169A

公开(公告)日：2000-10-31

申请号：US956569

申请日：1997-10-23

Applicant: David M. Pietruszynski ,  Jerrell P. Hein ,  William G. Bliss ,  German S. Feyh

Inventor： David M. Pietruszynski ,  Jerrell P. Hein ,  William G. Bliss ,  German S. Feyh

IPC: G11B5/00 ,  G11B5/09 ,  G11B7/09 ,  G11B20/10 ,  H03F1/30 ,  H03F3/45 ,  G11B5/02

CPC classification number: H03F3/45748 ,  G11B20/10009 ,  H03F1/303 ,  H03F3/45973 ,  G11B2005/0013 ,  G11B5/09 ,  G11B7/0941 ,  G11B7/0948

Abstract: A system and method for an amplifier control circuit is provided which does not require the use of a large off-chip or on-chip capacitor for achieving a low frequency coupling corner, while still effectively allowing AC coupling the data detection circuit. In addition, the input offset voltage to the amplifier may be compensated and the inherent random low frequency input voltages provided to the amplifier may be controlled or canceled. Further, the amplifier control circuitry includes a freeze capability which allows the control circuitry to halt all updates to the input offset/low frequency control circuit when the voltage input signal is interrupted. In addition low frequency control and offset compensation updates may be performed without causing large output signal glitches so that the integrity of the received signal will not be compromised. In a preferred embodiment the system and method may be utilized for data detection circuits utilized in conjunction with optical disks.

Abstract translation: 提供一种用于放大器控制电路的系统和方法，其不需要使用大的片外或片上电容器来实现低频耦合角，同时仍然有效地允许AC耦合数据检测电路。 此外，可以补偿放大器的输入失调电压，并且可以控制或取消提供给放大器的固有的随机低频输入电压。 此外，放大器控制电路包括冻结能力，其允许控制电路在电压输入信号中断时停止对输入偏移/低频控制电路的所有更新。 此外，可以执行低频控制和偏移补偿更新，而不会导致大的输出信号毛刺，从而不会损害接收信号的完整性。 在优选实施例中，系统和方法可以用于与光盘结合使用的数据检测电路。