请求推荐一款FPGA用的电源芯片FGPA上需要3.3V和1.5V的稳压电源,最大负载电流500mA,请推荐一款或两款芯片,谢谢!(输入部分5V/2A,)自己到WWW.TI.COM去看看?FPGA型号是哪个?一般都有手册都有推荐的电源管理型号的S111
Introduction
This application note lists approved oscillators that have been tested with TDMoP devices to meet G.8261 compliance tests. The article focuses on M工字电感axim's TDMoP product共模电感 line: the DS34T101, DS34T102, DS34T104, and DS34T108; the DS34S101, DS34S102, DS34S104, and DS34S108; or the DS34S132.For typical operation the output from the oscillator电感器生产 goes to the CLK_HIGH pin of the DS34T10x and DS34S10x devices, or to the REFCLK pin 深圳电感厂家of the DS34S132 for the internal clock-recovery synthesizer. From this CLK_HIGH or REFCLK signal, an on-chip frequency converter block produces the reference clock required by the clock recovery engines in the TDMoP block. This reference clock for the clock recovery engine is 38.88MHz for DS34T10x and DS34S10x devices, and 155.52MHz for the DS34S132 device.
List of the oscillators
Manufacturer | Part Number | Frequency (MHz) | Type of Oscillator |
Vectron | C4600 | 38.88 | OCXO |
Valpay Fisher | VFTCEC59L3T | 38.88 | OCXO |
MACE-C59L3T | 38.88 | OCXO | |
Rakon | E4496LF | 38.88 | TCXO |
E4890LF | 19.44 | TCXO | |
E4889LF | 10 | TCXO | |
P4816LF | 10 | TCXO |
Conclusion
The frequency stability characteristics of the CLK_HIGH or REFCLK signal affect the wander performance of the recovered TDM clock. For applications where the recovered TDM clock must comply with G.823/G.824 requirements for traffic interfaces, typically a TCXO can be used as the source for the CLK_HIGH or REFCLK signal. For applications where the recovered clock must comply with G.823/G.824 requirements for synchronization interfaces, the CLK_HIGH or REFCLK signal typically must come from an OCXO. Maxim's TDMoP devices achieved a short-term frequency accuracy at 1s of 16ppb or better when an OCXO was used as a reference, and 100ppb or better when a TCXO was used as a reference. 描述振动信号的另一重要参数是信号的频率。绝大多数的工程振动信号均可分解成一系列特定频率和幅值的正弦信号,因此,对某一振动信号的测量,实际上是对组成该振动信号的正弦频率分量的测量。对传感器主要性能指标...
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