参数资料
型号: MSC8144VT1000B
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 数字信号处理
英文描述: 133 MHz, OTHER DSP, PBGA783
封装: 29 X 29 MM, LEAD FREE, PLASTIC, FCPBGA-783
文件页数: 63/80页
文件大小: 1250K
代理商: MSC8144VT1000B
MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 16
Hardware Design Considerations
Freescale Semiconductor
66
3.2
Each PLL supply must have an external RC filter for the VDDPLL input. The filter is a 10 Ω resistor in series with two 2.2 μF,
low ESL (<0.5 nH) and low ESR capacitors. All three PLLs can connect to a single supply voltage source (such as a voltage
regulator) as long as the external RC filter is applied to each PLL separately (see Figure 43). For optimal noise filtering, place
the circuit as close as possible to its VDDPLL inputs. These traces should be short and direct.
Figure 43. PLL Supplies
MSC8144
VDDPLL0
10
Ω
2.2
μF
2.2
μF
VDDPLL0
10
Ω
2.2
μF
2.2
μF
VDDPLL0
10
Ω
2.2
μF
2.2
μF
Voltage Regulator
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