CS8421 Cirrus Logic, CS8421 Datasheet - Page 34

• Manufacturer Part Number: CS8421
• Description: 32-bit 192 kHz Asynchronous Sample Rate Converter
• Manufacturer: Cirrus Logic

34
6. PACKAGE DIMENSIONS
Notes:
TSSOP THERMAL CHARACTERISTICS
Junction to Ambient Thermal Impedance
DIM
A1
A2
E1
D
A
E
b
e
L
µ
1 2 3
N
1. “D” and “E1” are reference datums and do not included mold flash or protrusions, but do include mold
2. Dimension “b” does not include dambar protrusion/intrusion. Allowable dambar protrusion shall be
3. These dimensions apply to the flat section of the lead between 0.10 and 0.25 mm from lead tips.
TOP VIEW
mismatch and are measured at the parting line, mold flash or protrusions shall not exceed 0.20 mm per
side.
0.13 mm total in excess of “b” dimension at maximum material condition. Dambar intrusion shall not re-
duce dimension “b” by more than 0.07 mm at least material condition.
0.03346
0.00748
0.002
0.252
0.248
0.169
0.020
MIN
20L TSSOP (4.4 MM BODY) PACKAGE DRAWING
0°
--
--
Parameter
E
INCHES
0.0354
0.0096
0.2519
0.1732
0.004
0.256
0.024
NOM
4°
--
--
Controlling Dimension is Millimeters.
e
SIDE VIEW
D
JEDEC #: MO-153
0.043
0.006
0.037
0.012
0.259
0.256
0.177
0.026
0.028
MAX
b
8°
2
2 Layer Board
4 Layer Board
A2
A1
SEATING
0.05
0.85
0.19
6.40
6.30
4.30
0.50
MIN
PLANE
0°
A
Symbol
--
--
θ
JA
MILLIMETERS
Min
L
-
-
0.245
NOM
0.90
6.50
6.40
4.40
0.60
4°
--
--
--
Typ
48
38
END VIEW
E1
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1
Max
-
-
MAX
1.10
0.15
0.95
0.30
6.60
6.50
4.50
0.65
0.70
8°
CS8421
°C/Watt
°C/Watt
Units
DS641F2
NOTE
2,3
1
1
∝