S3042 AMCC (Applied Micro Circuits Corp), S3042 Datasheet - Page 10

• Manufacturer Part Number: S3042
• Description: Sonet/sdh/atm OC-48 1:8 Receiver
• Manufacturer: AMCC (Applied Micro Circuits Corp)

S3043
SONET/SDH/ATM OC-48 16:1 TRANSMITTER
Figure 6. 80 PQFP/TEP Package
BOTTOM VIEW
TOP VIEW
Note: The S3043 package is equipped with an embedded conductive heatsink on the bottom (board side). Active circuitry and
vias should not appear in the area immediately under the package. This heatsink is electrically biased to the Vee potential of the
S3043. For optimum thermal management, a foil surface at ground (or Vee if other than ground) is recommended immediately
under the package, and connected with multiple vias to the internal plane(s) of similar potential. Thermally conductive epoxy or
other conductive interposer can be used to establish a good thermal dissipation path.
Table 6. Thermal Management
Device
Max
jc
S3043
1.56 W
2.1˚C/W
1. Add 0.24W for loopback active.
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August 10, 1999 / Revision E