参数资料
型号: ORT82G5-2BM680
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: FPGA
英文描述: FPGA, 1296 CLBS, 380000 GATES, PBGA680
封装: PLASTIC, BGA-680
文件页数: 9/110页
文件大小: 1459K
代理商: ORT82G5-2BM680
106
Lattice Semiconductor
Data Sheet
January 25, 2002
8b/10b SERDES Backplane Interface FPSC
ORCA ORT82G5 1.0-1.25/2.0-2.5/3.125-3.5 Gbits/s
Package Parasitics
The electrical performance of an IC package, such as signal quality and noise sensitivity, is directly affected by the
package parasitics. Table 36 lists eight parasitics associated with the ORCA packages. These parasitics represent
the contributions of all components of a package, which include the bond wires, all internal package routing, and
the external leads.
Four inductances in nH are listed: LSW and LSL, the self-inductance of the lead; and LMW and LML, the mutual
inductance to the nearest neighbor lead. These parameters are important in determining ground bounce noise and
inductive crosstalk noise. Three capacitances in pF are listed: CM, the mutual capacitance of the lead to the near-
est neighbor lead; and C1 and C2, the total capacitance of the lead to all other leads (all other leads are assumed
to be grounded). These parameters are important in determining capacitive crosstalk and the capacitive loading
effect of the lead. Resistance values are in m.
The parasitic values in Table 36 are for the circuit model of bond wire and package lead parasitics. If the mutual
capacitance value is not used in the designer’s model, then the value listed as mutual capacitance should be
added to each of the C1 and C2 capacitors.
Table 36. ORCA ORT82G5 Package Parasitics
5-3862(C)r2
Figure 30. Package Parasitics
Package Type
LSW
LMW
RW
C1
C2
CM
LSL
LML
680-Pin PBGAM
3.8
1.3
250
1.0
0.3
2.8—5
0.5—1
LSL
C2
C1
相关PDF资料
PDF描述
ORT82G5-3BM680 FPGA, 1296 CLBS, 380000 GATES, PBGA680
OS10040280G-012 FIBER OPTIC RECEIVER, 1290-1600nm, PANEL MOUNT, FC/APC CONNECTOR
OT-WBSC-Y-A-10-X-9-M-3-05-FA FIBER OPTIC SPLITTER/COUPLER, 1X2PORT, 10.0, PANEL MOUNT, FC/APC CONNECTOR
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