BCM43455 Preliminary Data Sheet
Mechanical Information
Figure 49: 140-Balls WLBGA Keep-out Areas for PCB Layout—Top View with Balls Facing Down
Horizental
(mm)
vertical
(mm)
Keep out
#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
0.11
0.09
0.12
0.08
0.08
0.20
0.15
0.14
0.17
0.05
0.15
0.27
0.16
0.15
0.18
0.13
0.13
0.13
0.18
0.08
0.14
0.10
0.07
0.07
0.11
0.09
0.12
0.08
0.08
0.20
0.15
0.14
0.14
0.05
0.15
0.27
0.16
0.15
0.18
0.10
0.13
0.13
0.18
0.08
0.18
0.10
0.07
0.07
Note: No top-layer metal is allowed in keep-out areas.
Note: A DXF file for the WLBGA keep-out area is available for importation into a layout program.
Contact your Broadcom FAE for more information.
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 156
BROADCOM CONFIDENTIAL
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