wm8918 Wolfson Microelectronics plc, wm8918 Datasheet - Page 174
wm8918
Manufacturer Part Number
wm8918
Description
Ultra Low Power Dac For Portable Audio Applications
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8918.pdf
(175 pages)
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WM8918
PACKAGE DIMENSIONS
w
NOTES:
1. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.15 mm AND 0.25 mm FROM TERMINAL TIP.
2. ALL DIMENSIONS ARE IN MILLIMETRES.
3. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO JEDEC 95-1 SPP-002.
4. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
5. REFER TO APPLICATION NOTE WAN_0118 FOR FURTHER INFORMATION REGARDING PCB FOOTPRINTS AND QFN PACKAGE SOLDERING.
6. THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE.
Symbols
FL: 32 PIN QFN PLASTIC PACKAGE 4
REF:
A3
C
bbb
aaa
ccc
A1
A3
D2
E2
A
D
G
b
E
e
L
A
SEATING PLANE
24
17
Tolerances of Form and Position
25
16
MIN
0.70
0.15
2.65
2.65
0.35
e
0
15
BOTTOM VIEW
A3
SIDE VIEW
0.203 REF
D2
4.00 BSC
4.00 BSC
0.40 BSC
B
Exposed lead
EXPOSED
GROUND
PADDLE
0.035
NOM
0.75
0.40
0.05
0.10
0.10
0.2
2.7
2.7
0.5
b
Dimensions (mm)
6
32
9
G
DETAIL 1
b
MAX
0.05
0.25
2.75
2.75
0.45
0.8
X
1
8
1
DETAIL 1
4
bbb
L
X
A1
M
A
0.75 mm BODY, 0.40 mm LEAD PITCH
C
E2
A
B
NOTE
ccc
0.08
1
2
2
C
C
5
2 X
4
2 X
INDEX AREA
(D/2 X E/2)
aaa
aaa
C
C
TOP VIEW
D
PD, Rev 4.0, September 2010
DM067.A
E
Production Data
174
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