WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 154

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8959
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NOTES:
1. PRIMARY DATUM -Z- AND SEATING PLANE ARE DEFINED BY THE SPHERICAL CROWNS OF THE SOLDER BALLS.
2. THIS DIMENSION INCLUDES STAND-OFF HEIGHT ‘A1’ AND BACKSIDE COATING.
3. A1 CORNER IS IDENTIFIED BY INK/LASER MARK ON TOP PACKAGE.
4. BILATERAL TOLERANCE ZONE IS APPLIED TO EACH SIDE OF THE PACKAGE BODY.
5. ‘e’ REPRESENTS THE BASIC SOLDER BALL GRID PITCH.
6. THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE.
7. FOLLOWS JEDEC DESIGN GUIDE MO-211-C.
PACKAGE DIMENSIONS
2
Symbols
B: 42 BALL W-CSP PACKAGE 3.226
G
DETAIL 2
D1
E1
A1
A2
D
E
h
e
g
A
f
A2
A
0.060 BSC
0.615
0.225
0.355
0.035
MIN
G
A
B
C
D
E
F
1
6
bbb
Z
3.226 BSC
2.500 BSC
3.440 BSC
0.315 BSC
3.00 BSC
0.50 BSC
Dimensions (mm)
Z
0.250
0.380
NOM
0.070
5
0.7
BOTTOM VIEW
A1
e
4
D1
3
0.785
0.275
0.405
0.105
X
MAX
3.440
2
DETAIL 2
1
X
DETAIL 1
0.7mm BODY, 0.50 mm BALL PITCH
NOTE
e
5
5
E1
4
2 X
2 X
A1
CORNER
0.10
0.10
Z
Z
TOP VIEW
f
6
D
SOLDER BALL
h
f
PP, May 2008, Rev 3.1
DM049.C
E
Pre-Production
154