TMS320DM643 Datasheet, PDF (153/160 Pages) Texas Instruments – Video/Imaging Fixed-Point Digital Signal Processo

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TMS320DM643
Video/Imaging Fixed-Point Digital Signal Processor
SPRS269A – FEBRUARY 2005 – REVISED APRIL 2005
7 Mechanical Data
The following table(s) show the thermal resistance characteristics for the PBGA – GDK, GNZ, ZDK, and
ZNZ mechanical packages.
7.1 Thermal Data
NO.
1
RΘ_JC
2
RΘ_JB
3
4
5
RΘ_JA
6
7
8
9
Psi_JT
10
11
12
13
Psi_JB
14
Table 7-1. Thermal Resistance Characteristics (S-PBGA Package) [GDK]
Junction-to-case
Junction-to-board
Junction-to-free air
Junction-to-package top
Junction-to-board
°C/W
3.3
7.92
18.2
15.3
13.7
12.2
0.37
0.47
0.57
0.7
11.4
11
10.7
10.2
AIR FLOW (m/s)⁽¹⁾
N/A
N/A
0.00
0.5
1.0
2.00
0.00
0.5
1.0
2.00
0.00
0.5
1.0
2.00
(1) m/s = meters per second
NO.
1
RΘ_JC
2
RΘ_JB
3
4
5
RΘ_JA
6
7
8
9
Psi_JT
10
11
12
13
Psi_JB
14
Table 7-2. Thermal Resistance Characteristics (S-PBGA Package) [GNZ]
Junction-to-case
Junction-to-board
Junction-to-free air
Junction-to-package top
Junction-to-board
°C/W
3.3
7.46
17.4
14.0
12.3
10.8
0.37
0.47
0.57
0.7
11.4
11
10.7
10.2
AIR FLOW (m/s)⁽¹⁾
N/A
N/A
0.00
0.5
1.0
2.00
0.00
0.5
1.0
2.00
0.00
0.5
1.0
2.00
(1) m/s = meters per second
Mechanical Data 153