參數(shù)資料
型號(hào)： MC8610VT800GZ
廠(chǎng)商： FREESCALE SEMICONDUCTOR INC
元件分類(lèi)： 微控制器/微處理器
英文描述： MICROPROCESSOR, PBGA783
封裝： 29 X 29 MM, ROHS COMPLIANT, PLASTIC, FCBGA-783
文件頁(yè)數(shù)： 55/96頁(yè)
文件大?。?/td> 1237K
代理商： MC8610VT800GZ
Electrical Characteristics
MPC8610 Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
59
Figure 35. AC-Coupled Differential Connection with LVDS Clock Driver (Reference Only)
Figure 36 shows the SerDes reference clock connection reference circuits for LVPECL type clock driver. Since LVPECL
driver’s DC levels (both common mode voltages and output swing) are incompatible with MPC8610 SerDes reference clock
input’s DC requirement, AC-coupling has to be used. Figure 36 assumes that the LVPECL clock driver’s output impedance is
50
Ω. R1 is used to DC-bias the LVPECL outputs prior to AC-coupling. Its value could be ranged from 140 to 240 Ω depending
on clock driver vendor’s requirement. R2 is used together with the SerDes reference clock receiver’s 50-
Ω termination resistor
to attenuate the LVPECL output’s differential peak level such that it meets the MPC8610 SerDes reference clock’s differential
input amplitude requirement (between 200 and 800 mV differential peak). For example, if the LVPECL output’s differential
peak is 900 mV and the desired SerDes reference clock input amplitude is selected as 600 mV, the attenuation factor is 0.67,
which requires R2 = 25
Ω. Please consult clock driver chip manufacturer to verify whether this connection scheme is compatible
with a particular clock driver chip.
Figure 36. AC-Coupled Differential Connection with LVPECL Clock Driver (Reference Only)
SD
n_REF_CLK
SD
n_REF_CLK
Clock Driver
100
Ω Differential PWB Trace
CLK_Out
LVDS CLK Driver Chip
10 nF
MPC8610
SerDes Refer.
CLK Receiver
50
Ω
50
Ω
Clock Driver
SD
n_REF_CLK
SD
n_REF_CLK
Clock Driver
100
Ω Differential PWB Trace
SerDes Refer.
CLK Receiver
Clock Driver
CLK_Out
LVPECL CLK Driver Chip
R2
MPC8610
10 nF
CLK_Out
R2
R1
Clock Driver
50
Ω
50
Ω
R1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC8610VT800J 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC861P 制造商:Motorola Inc 功能描述: 制造商:Texas Instruments 功能描述:
MC862 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:INTEGRATED CIRCUITS
MC862L 制造商:Motorola Inc 功能描述:
MC862P 制造商:PRISM ELECTRONICS 功能描述:TRIPLE 3 INPUT NAND GATE DTL
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