- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369586 > BXM80526B500128 Microprocessor PDF資料下載
參數(shù)資料
| 型號： | BXM80526B500128 |
| 英文描述： | Microprocessor |
| 中文描述： | 微處理器 |
| 文件頁數(shù)： | 78/81頁 |
| 文件大?。?/td> | 598K |
| 代理商： | BXM80526B500128 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁當(dāng)前第78頁第79頁第80頁第81頁
Mobile Intel
Celeron Processor (0.18μ) in BGA2 and Micro-PGA2 Packages
Datasheet
Order Number#249563-001
78
Appendix A: PLL RLC Filter
Specification
A.1
Introduction
All mobile Intel Celeron processors have internal PLL clock generators, which are analog in
nature and require quiet power supplies for minimum jitter. Jitter is detrimental to a system; it
degrades external I/O timings as well as internal core timings (i.e. maximum frequency). In
mobile Intel Celeron processors in the BGA1 and μPGA1 packages, the power supply filter was
specified as an external LC network. This remains largely the same for the mobile Intel Celeron
processor in the BGA2 and μPGA2 packages. However, due to increased current flow, the value
of the inductor has to be reduced, thereby requiring new components. The general desired
topology is shown in Figure 4. Excluded from the external circuitry are parasitics associated with
each component.
A.2
Filter Specification
The function of the filter is two fold. It protects the PLL from external noise through low-pass
attenuation. It also protects the PLL from internal noise through high-pass filtering. In general,
the low-pass description forms an adequate description for the filter.
The AC low-pass specification, with input at V
CCT
and output measured across the capacitor, is as
follows:
< 0.2-dB gain in pass band
< 0.5-dB attenuation in pass band < 1 Hz (see DC drop in next set of requirements)
34-dB attenuation from 1 MHz to 66 MHz
28-dB attenuation from 66 MHz to core frequency
The filter specification (AC) is graphically shown in Figure 25.
Other requirements:
Use a shielded type inductor to minimize magnetic pickup
The filter should support a DC current of at least 30 mA
The DC voltage drop from V
CCT
to PLL1 should be less than 60 mV, which in practice implies
series resistance of less than 2
. This also means that the pass band (from DC to 1Hz)
attenuation below 0.5 dB is for V
CCT
= 1.1V and below 0.35 dB for V
CCT
= 1.5V.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BXM80526B550128 | Microprocessor |
| BXM80526B700128 | Octal bus buffer with 3 state outputs (inverted) |
| BXM80532GC1600D | Octal bus buffer with 3 state outputs (inverted) |
| BXM80532GC1700D | Microprocessor |
| BXM80532GC1800D | Microprocessor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BXM80536NC1400ES L7LS | 制造商:Intel 功能描述:CELERON M,360,1.40GHZ,1M CACHE, 400MHZ FSB,1.26V,UFCPGA - Boxed Product (Development Kits) |
| BXMP1000 | 制造商:SPECTRUM 制造商全稱:Spectrum Microwave, Inc. 功能描述:RF AMPLIFIER |
| BXMP1001 | 制造商:SPECTRUM 制造商全稱:Spectrum Microwave, Inc. 功能描述:RF AMPLIFIER |
| BXMP1002 | 制造商:SPECTRUM 制造商全稱:Spectrum Microwave, Inc. 功能描述:RF AMPLIFIER |
| BXMP1003 | 制造商:SPECTRUM 制造商全稱:Spectrum Microwave, Inc. 功能描述:RF AMPLIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。