Production Data WM8737L
w
PD, Rev 4.4, January 2012
37
RECOMMENDED EXTERNAL COMPONENTS
Notes: 1. C1-18 should be fitted as close to WM8737 as possible.
2. AGND and DGND should be connected as close to WM8737 as possible
Figure 28 External Components Diagram
COMPONENT
REFERENCE
SUGGESTED
VALUE
DESCRIPTION
C1 100nF
Decoupling for AVDD
C2 10F
Reservoir capacitor for AVDD
C3 100nF
Decoupling for MVDD
C4 10F
Reservoir capacitor for MVDD
C5 100nF
Decoupling for DCVDD
C6 10F
Reservoir capacitor for DCVDD
C7 100nF
Decoupling for DBVDD
C8 10F
Reservoir capacitor for DBVDD
C9 100nF
Decoupling for VMID
C10 10F
Reservoir capacitor for VMID
C11 100nF
Decoupling for MICBIAS
C12 10F
Reservoir capacitor for MICBIAS
C9 100nF
Decoupling for VREF
C10 10F
Reservoir capacitor for VREF
C11 1F
RACIN to RACOUT coupling capacitor
C12 1F
LACIN to LACOUT coupling capacitor
Table 24 External Components Descriptions
WM8737L Production Data
w
PD, Rev 4.4, January 2012
38
PACKAGE DIMENSIONS
DM101.A
FL: 32 PIN QFN PLASTIC PACKAGE 5
X 5 X 0.9 mm BODY, 0.50 mm LEAD PITCH
E2
b
B
16 15
8
9
e
C0.08
Cccc
A
A1
C
A3
SEATING PLANE
1
L
INDEX AREA
(D/2 X E/2)
TOP VIEW
D
Caaa
2 X
Caaa
2 X
E
1
17
24
25
32
D2
BC
bbb
M
A
5
4
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 VHHD-5.
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 APPLICATION NOTE WAN_0118 FOR FURTHER INFORMATION REGARDING PCB FOOTPRINTS AND QFN PACKAGE SOLDERING.
7. THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE.
DETAIL 1
A3
G
T
H
W
b
Exposed lead
Half etch tie bar
Dimensions (mm)
Symbols
MIN
NOM
MAX NOTE
A
A1
A3
0.80
0.90
1.00
0.05
0.02
0
0.203 REF
b
D
D2
E
E2
e
L
0.300.18
5.00 BSC
3.60
3.45
3.30
0.50 BSC
0.30 0.40 0.50
1
2
2
5.00 BSC
3.603.453.30
0.10
aaa
bbb
ccc
REF:
0.15
0.10
JEDEC, MO-220, VARIATION VHHD-5.
Tolerances of Form and Position
0.25
H
0.1
0.20
G
T
0.103
W 0.15
DETAIL 1
DETAIL 2
DETAIL 2
EXPOSED
GROUND
PADDLE
6
EXPOSED
GROUND
PADDLE
BOTTOM VIEW
SIDE VIEW
0.30
45°
M
M
Production Data WM8737L
w
PD, Rev 4.4, January 2012
39
IMPORTANT NOTICE
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WM8737CLGEFL/R

Mfr. #:
Manufacturer:
Cirrus Logic
Description:
Audio A/D Converter ICs Stereo ADC Low Power
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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