Intel 855PM Design Manual page 368

5
D
4,38 +VCC_CORE
NO_STUFF_10UF
C362 C372 C365 C356 C360
NO_STUFF_10UF NO_STUFF_10UF
NO_STUFF_10UF NO_STUFF_10UF
4,38 +VCC_CORE
NO_STUFF_10UF NO_STUFF_10UF
C
C370 C364 C114 C122 C108
NO_STUFF_10UF NO_STUFF_10UF NO_STUFF_10UF
4,38 +VCC_CORE
C140 C139 C138 C137 C105
150UF 150UF 150UF 150UF 150UF
B
4,38 +VCC_CORE
C376 C378 C379 C380 C389
2.2uF 2.2uF 2.2uF 2.2uF 2.2uF
3,4,5,7,15,16,17,37,42 +VCCP
Place near 855PM
C167 C400 C399 C422
150UF 0.1UF 0.1UF 0.1UF
Note:
A 7,37 +V1.2S_MCH
C417 is 0805
C164 C166 C163 C417
NO_STUFF_150UF 150UF 150UF 2.2UF
5
4
VCore HF and Bulk Decoupling
This solution will allow any of the
decoupling options.
be stuffed at the same time.
NO_STUFF_10UF
NO_STUFF_10UF NO_STUFF_10UF
C359 C355 C373 C374 C124 C125
NO_STUFF_10UF NO_STUFF_10UF NO_STUFF_10UF
NO_STUFF_10UF NO_STUFF_10UF NO_STUFF_10UF
C369 C110 C123 C113 C120 C118
NO_STUFF_10UF NO_STUFF_10UF NO_STUFF_10UF
C136 C135 C134 C132 C133 C131
150UF 150UF 150UF 150UF 150UF 150UF
C390 C391 C392 C384 C377 C381
2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF
C413 C402 C410 C412 C435 C165
0.1UF 0.1UF 0.1UF 0.1UF 0.1UF NO_STUFF_150UF
1
C431 C433 C425 C434 C432
0.22uF 0.047UF 0.022uF 0.01UF 0.015uF
2
4
3
All caps should NOT
NO_STUFF_10UF NO_STUFF_10UF
C371 C111 C127 C109 C361
NO_STUFF_10UF NO_STUFF_10UF NO_STUFF_10UF
NO_STUFF_10UF NO_STUFF_10UF NO_STUFF_10UF
C117 C119 C116 C121 C112
NO_STUFF_10UF NO_STUFF_10UF NO_STUFF_10UF
Bulk decoupling values are tuned
to Intels IMVP-IV 2Phase VR design.
C104
150UF
Circuits using other converter topologies
may have different requirements.
Note:
C382 C383 C385 C386
2.2uF Caps are
0612 geometry
2.2uF 2.2uF 2.2uF 2.2uF
3,4,5,7,15,16,17,37,42 +VCCP
C3900 C171
NO_STUFF_150UF 150UF
3
2
NO_STUFF_10UF NO_STUFF_10UF
C357 C358 C366 C126
NO_STUFF_10UF
NO STUFF
NO_STUFF_10UF
NO_STUFF_10UF
C363 C115 C368 C367
NO_STUFF_10UF
NO STUFF
NO_STUFF_10UF
Place near CPU
C395 C401 C406 C393 C403 C394
0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF
Title
Decoupling
Size Project:
B
Date: Monday, February 24, 2003
2
1
C398 C409 C405 C408 C396
0.1UF 0.1UF 0.1UF 0.1UF NO_STUFF_150UF
Document Number Rev
855PM Platform
Sheet 39 of 47
1
D
C
B
A