參數(shù)資料
型號: VSC8113QB2
廠商: VITESSE SEMICONDUCTOR CORP
元件分類: 數(shù)字傳輸電路
英文描述: Modular Connector; No. of Contacts:8; Approval Categories:FCC part 68, Subpart F, IEC-603-7 compliant; Meet ITA/EIA requirements; UL94V-0 fire-retardant rated; Body Material:Fire-Retardant Plastic; Color:Green RoHS Compliant: Yes
中文描述: TRANSCEIVER, PQFP100
封裝: 14 X 20 MM, 2.70 MM HEIGHT, PLASTIC, QFP-100
文件頁數(shù): 22/28頁
文件大?。?/td> 484K
代理商: VSC8113QB2
VITESSE
Data Sheet
VSC8113
ATM/SONET/SDH 622 Mb/s Transceiver Mux/Demux
with Integrated Clock Generation and Clock Recovery
Page 22
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 805/388-3700 FAX: 805/987-5896
G52154-0, Rev 4.2
3/19/99
The VSC8113 is manufactured in a 100PQFP package which is supplied by two different vendors. The crit-
ical dimensions in the drawing represent the superset of dimensions for both packages. The significant differ-
ence between the two packages is in the shape and size of the heatspreader which needs to be considered when
attaching a heatsink.
Package Thermal Characteristics
The VSC8113 is packaged in a thermally enhanced 100PQFP with an embedded heat sink. The heat sink
surface configurations are shown in the package drawings. With natural convection, the case to air thermal resis-
tance is estimated to be 27.5
o
C/W. The air flow versus thermal resistance relationship is shown in Table 18.
Junction to case thermal resistance is 1.2
o
C/W
Table 18: Theta Case to Ambient versus Air Velocity
Air Velocity
(LFPM)
Case to air thermal resistance
o
C/W
0
27.5
23.1
19.8
17.6
16
100
200
400
600
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