CS8421-CZZR Cirrus Logic Inc, CS8421-CZZR Datasheet - Page 35

• Manufacturer Part Number: CS8421-CZZR
• Description: IC,Digital Audio Sample Rate Converter,CMOS,TSSOP,20PIN
• Manufacturer: Cirrus Logic Inc

DS641F1
QFN THERMAL CHARACTERISTICS
Junction to Ambient Thermal Impedance
DIM
A1
D2
E2
D
A
b
E
e
L
1. Dimensioning and tolerance per ASME Y 14.5M-1995.
2. Dimensioning lead width applies to the plated terminal and is measured between 0.23mm and 0.33mm
from the terminal tip.
Pin #1 Corner
Top View
D
0.0000
0.0091
0.1201
0.1202
0.0197
20-PIN QFN (5 × 5 MM BODY) PACKAGE DRAWING
MIN
--
Parameter
0.1969 BSC
0.1969 BSC
0.0256 BSC
INCHES
0.1220
0.1221
0.0236
0.0110
NOM
--
--
E
Controlling Dimension is Millimeters.
2 Layer Board
4 Layer Board
JEDEC #: MO-220
0.0394
0.0020
0.0130
0.1240
0.1241
0.0276
MAX
Side View
Symbol
θ
JA
A1
A
MIN
0.00
0.23
3.05
3.05
0.50
--
E2
Min
L
-
-
MILLIMETERS
5.00 BSC
5.00 BSC
0.65 BSC
NOM
0.28
3.10
3.10
0.60
b
--
--
Bottom View
Typ
128
35
D2
MAX
1.00
0.05
0.33
3.15
3.15
0.70
e
Max
-
-
CS8421
Pin #1 Corner
°C/Watt
°C/Watt
Units
NOTE
1, 2
1
1
1
1
1
1
1
1
35