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公开(公告)号:US08634509B2
公开(公告)日:2014-01-21
申请号:US13397303
申请日:2012-02-15
IPC分类号: H04L7/00
CPC分类号: H04L7/033 , H03L7/0807 , H03L7/0814 , H03L7/091 , H04L7/0025
摘要: A high-linearity Phase Interpolator based Clock and Data Recovery (CDR) circuit for use in a multi-standard Serializer/Deserializer (SerDes) is provided. By interpolating at a high, fixed frequency for all supported data rates and then dividing the output clock down to the appropriately frequency for each standard, the Phase Interpolator can provide for maximum phase linearity while reducing its sensitivity to noise.
摘要翻译: 提供了一种用于多标准串行器/解串器(SerDes)的高线性相位插值器时钟和数据恢复(CDR)电路。 通过以高固定频率对所有支持的数据速率进行内插,然后将输出时钟下降到每个标准的适当频率,相位插值器可以提供最大的相位线性度,同时降低其对噪声的敏感度。
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公开(公告)号:US09263151B2
公开(公告)日:2016-02-16
申请号:US13396824
申请日:2012-02-15
申请人: Thucydides Xanthopoulos , David Lin
发明人: Thucydides Xanthopoulos , David Lin
CPC分类号: G11C29/02 , G06F11/27 , G11C29/022 , G11C29/48
摘要: A memory interface enables AC characterization under test conditions without requiring the use of Automated Test Equipment (ATE) and functional patterns. The memory controller may be configured to generate output patterns through the test interface and create a loopback path for input specification testing using an external stressed-eye random number generator and checker. As a result, the memory interface may be evaluated for electrical and timing specifications under a relatively simple test setup and test procedure through the test interface (JTAG), as opposed to a complex processor program that sets up a similar memory access pattern on Automated Test Equipment (ATE).
摘要翻译: 存储器接口可以在测试条件下实现AC特性,而无需使用自动测试设备(ATE)和功能模式。 存储器控制器可以被配置为通过测试接口生成输出模式,并且使用外部紧张眼随机数发生器和检验器创建用于输入规范测试的回送路径。 因此,可以通过测试接口(JTAG)在相对简单的测试设置和测试过程下评估存储器接口的电气和时序规范,而不是在自动测试中建立类似的存储器访问模式的复杂处理器程序 设备(ATE)。
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公开(公告)号:US20120207259A1
公开(公告)日:2012-08-16
申请号:US13397303
申请日:2012-02-15
IPC分类号: H04L7/00
CPC分类号: H04L7/033 , H03L7/0807 , H03L7/0814 , H03L7/091 , H04L7/0025
摘要: A high-linearity Phase Interpolator based Clock and Data Recovery (CDR) circuit for use in a multi-standard Serializer/Deserializer (SerDes) is provided. By interpolating at a high, fixed frequency for all supported data rates and then dividing the output clock down to the appropriately frequency for each standard, the Phase Interpolator can provide for maximum phase linearity while reducing its sensitivity to noise.
摘要翻译: 提供了一种用于多标准串行器/解串器(SerDes)的高线性相位插值器时钟和数据恢复(CDR)电路。 通过以高固定频率对所有支持的数据速率进行内插,然后将输出时钟下降到每个标准的适当频率,相位插值器可以提供最大的相位线性度,同时降低其对噪声的敏感度。
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公开(公告)号:US20120210179A1
公开(公告)日:2012-08-16
申请号:US13396824
申请日:2012-02-15
申请人: Thucydides Xanthopoulos , David Lin
发明人: Thucydides Xanthopoulos , David Lin
IPC分类号: G11C29/10 , G06F11/263
CPC分类号: G11C29/02 , G06F11/27 , G11C29/022 , G11C29/48
摘要: A memory interface enables AC characterization under test conditions without requiring the use of automated test equipment (ATE) and functional patterns. The memory controller may be configured to generate output patterns through the test interface and create a loopback path for input specification testing using an external stressed-eye random number generator and checker. As a result, the memory interface may be evaluated for electrical and timing specifications under a relatively simple test setup and test procedure through the test interface (JTAG), as opposed to a complex processor program that sets up a similar memory access pattern on Automated Test Equipment (ATE).
摘要翻译: 存储器接口可以在测试条件下进行交流表征,而无需使用自动化测试设备(ATE)和功能模式。 存储器控制器可以被配置为通过测试接口生成输出模式,并且使用外部紧张眼随机数发生器和检验器创建用于输入规范测试的回送路径。 因此,可以通过测试接口(JTAG)在相对简单的测试设置和测试过程下评估存储器接口的电气和时序规范,而不是在自动测试中建立类似的存储器访问模式的复杂处理器程序 设备(ATE)。
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公开(公告)号:US07209531B1
公开(公告)日:2007-04-24
申请号:US10397083
申请日:2003-03-26
IPC分类号: H04L7/00
CPC分类号: H04L7/0338 , H03K5/133 , H04L7/005 , H04L7/10
摘要: A deskew circuit utilizing a coarse delay adjustment and fine delay adjustment centers the received data in a proper data window and aligns the data for proper sampling. In one scheme, bit state transitions of a training sequence for SPI-4 protocol is used to adjust delays to align the transition points.
摘要翻译: 利用粗略延迟调整和精细延迟调整的偏移电路将接收到的数据集中在适当的数据窗口中,并对准数据以进行适当的采样。 在一种方案中,SPI-4协议的训练序列的位状态转换用于调整延迟以对齐转换点。
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