WM8971L Wolfson Microelectronics Ltd., WM8971L Datasheet - Page 59

• Manufacturer Part Number: WM8971L
• Description: Stereo Codec for Portable Audio Applications
• Manufacturer: Wolfson Microelectronics Ltd.

Production Data
w
NOTES:
1. DIMENSION b APPLIED TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm FROM TERMINAL TIP. DIMENSION L1 REPRESENTS TERMINAL PULL BACK FROM
2. FALLS WITHIN JEDEC, MO-220 WITH THE EXCEPTION OF D2, E2:
3. ALL DIMENSIONS ARE IN MILLIMETRES
4. THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE.
5. SHAPE AND SIZE OF CORNER TIE BAR MAY VARY WITH PACKAGE TERMINAL COUNT. CORNER TIE BAR IS CONNECTED TO EXPOSED PAD INTERNALLY.
6. REFER TO APPLICATION NOTE WAN_0118 FOR FURTHER INFORMATION REGARDING PCB FOOTPRINTS AND QFN PACKAGE SOLDERING.
PACKAGE DIMENSIONS
PACKAGE SIDE WALL. MAXIMUM OF 0.1mm IS ACCEPTABLE. WHERE TERMINAL PULL BACK EXISTS, ONLY UPPER HALF OF LEAD IS VISIBLE ON PACKAGE SIDE WALL DUE TO HALF
ETCHING OF LEADFRAME.
D2,E2: LARGER PAD SIZE CHOSEN WHICH IS JUST OUTSIDE JEDEC SPECIFICATION
FL: 32 PIN QFN PLASTIC PACKAGE 5
1
(A3)
C
Symbols
A
REF:
CORNER
TIE BAR
SEATING PLANE
bbb
ccc
aaa
A1
A3
D2
E2
L1
5
24
17
A
D
E
R
K
b
e
L
25
16
e
Tolerances of Form and Position
15
b(min)/2
B
0.20
0.85
0.18
4.90
4.90
0.35
MIN
3.2
3.2
BOTTOM VIEW
0
JEDEC, MO-220, VARIATION VHHD-2
SIDE VIEW
D2
B
EXPOSED
GROUND
PADDLE
DETAIL B
D2/2
0.5 BSC
0.2 REF
Dimensions (mm)
NOM
0.90
0.02
0.23
5.00
5.00
0.15
0.10
0.10
3.3
3.3
0.4
6
32
9
SEE DETAIL A
b
X
1
8
5
L
E2/2
MAX
1.00
0.05
0.30
0.45
5.10
5.10
0.1
X
3.4
3.4
A1
A
0.9 mm BODY, 0.50 mm LEAD PITCH
E2
SEE DETAIL B
ccc
0.08
C
NOTE
C
1
1
2
2
2 X
2 X
INDEX AREA
(D/2 X E/2)
aaa
aaa
C
C
bbb
M
C
1
A
B
DETAIL A
32x b
TOP VIEW
EXPOSED
GROUND
PADDLE
D
CORNER
TIE BAR
L1
E
DM030.E
1
5
PD Rev 4.1 August 2005
WM8971L
59