Package Diagram - Cirrus Logic WM8940 Manual

PACKAGE DIAGRAM

FL: 24 PIN QFN PLASTIC PACKAGE 4
D2
19
18
EXPOSED
GROUND
PADDLE
13
12
e
BOTTOM VIEW
A3
C SIDE VIEW
SEATING PLANE
M
Exposed lead
A3
b
Symbols
MIN
A 0.80
A1
0
A3
b 0.20
D
2.40
D2
E
E2
2.40
e
G
H
L 0.35
T
W
Tolerances of Form and Position
aaa
bbb
ccc
REF: JEDEC, MO-220, VARIATION VGGD-8.
NOTES:
1. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.15 mm AND 0.30 mm FROM TERMINAL TIP.
2. FALLS WITHIN JEDEC, MO-220, VARIATION VGGD-8.
3. ALL DIMENSIONS ARE IN MILLIMETRES.
4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO JEDEC 95-1 SPP-002.
5. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
6. REFER TO APPLICATIONS NOTE WAN_0118 FOR FURTHER INFORMATION REGARDING PCB FOOTPRINTS AND QFN PACKAGE SOLDERING.
7. THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE.
86
4 0.9 mm BODY, 0.50 mm LEAD PITCH
X X
DETAIL 1
24
1
6
E2
SEE DETAIL 2
6
b 7
1
C A B
bbb M
ccc C
A
5
0.08 C
A1
DETAIL 3
M
W
T
G
H
Half etch tie bar
DETAIL 3
Dimensions (mm)
NOM
MAX NOTE
0.85
0.90
0.035
0.05
0.203 REF
1
0.25 0.30
4.00 BSC
2.50 2.60
2
4.00 BSC
2
2.50 2.60
0.50 BSC
0.20
0.10
0.40 0.45
0.103
0.15
0.10
0.10
0.10
D
4 INDEX AREA
(D/2 X E/2)
aaa C
2 X
aaa C
2 X
TOP VIEW
DETAIL 1
DETAIL 2
45°
0.30mm
EXPOSED
GROUND
PADDLE
WM8940
DM102.C
E
L
Datum
Terminal
Tip
e/2
e
Rev 4.4