
ICS844004-104
FEMTOCLOCKCRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
IDT / ICS LVDS FREQUENCY SYNTHESIZER
14
ICS844004AK-104 REV. A SEPTEMBER 15, 2008
Reliability Information
Table 8. θJA vs. Air Flow Table for a 32 Lead VFQFN
Transistor Count
The transistor count for ICS844004-104 is: 2914
Package Outline and Package Dimensions
Package Outline - K Suffix for VFQFN Packages
Table 9. Package Dimensions
Reference Document: JEDEC Publication 95, MO-220
NOTE: The following package mechanical drawing is a generic
drawing that applies to any pin count VFQFN package. This
drawing is not intended to convey the actual pin count or pin layout
of this device. The pin count and pinout are shown on the front
page. The package dimensions are in Table 8 below.
θ
JA vs. Air Flow
Meter per Second
01
2.5
Multi-Layer PCB, JEDEC Standard Test Boards
42.4°C/W
37.0°C/W
33.2°C/W
To p View
Ind exArea
D
Chamfer 4x
0.6 x 0.6 max
OPTIONAL
Anvil
Singula tion
A
0. 08
C
A3
A1
S eating Plan e
E2
2
L
(N
-1)x e
(R ef.)
(Ref.)
N & N
Even
N
e
D2
2
D2
(Ref.)
N & N
Odd
1
2
e
2
(Ty p.)
If N & N
are Even
(N -1)x e
(Re f.)
b
Th er mal
Ba se
N
OR
JEDEC Variation: VHHD-2/-4
All Dimensions in Millimeters
Symbol
Minimum
Nominal
Maximum
N
32
A
0.80
1.00
A1
00.05
A3
0.25 Ref.
b
0.18
0.25
0.30
ND & NE
8
D & E
5.00 Basic
D2 & E2
3.0
3.3
e
0.50 Basic
L
0.30
0.40
0.50