ADSST-21065LKCA-240 STMicroelectronics, ADSST-21065LKCA-240 Datasheet - Page 18

• Manufacturer Part Number: ADSST-21065LKCA-240
• Description: High End/ Multichannel/ 32-Bit Floating-Point Audio Processor
• Manufacturer: STMicroelectronics

SST-Melody-SHARC
The P
Pin Type
Address
MS0
SDWE
Data
SDRAM CLK
A typical power consumption can now be calculated for these
conditions by adding a typical internal power dissipation (I
see calculation in Electrical Characteristics section):
Note that the conditions causing a worst-case P
those causing a worst-case P
while 100% of the output pins are switching from all ones (1s)
to all zeros (0s). Note also that it is not common for an applica-
tion to have 100% or even 50% of the outputs switching
simultaneously.
ENVIRONMENTAL CONDITIONS
Thermal Characteristics
The SST-Melody-SHARC is offered in a 208-lead MQFP and a
196-ball Mini-BGA package.
The SST-Melody-SHARC is specified for a case temperature
(T
source may be used.
CASE
EXT
)
.
To ensure that T
equation is calculated for each class of pins that can drive:
P
TOTAL
No. of Pins
11
1
1
32
1
=
P
CASE
EXT
INT
. Maximum P
is not exceeded, an air flow
+
(
I
DDIN
×
V
% Switching
50
0
0
50
DD
INT
Table IV. External Power Calculations
)
EXT
cannot occur
differ from
DDIN
,
–18–
10.7
10.7
10.7
7.7
10.7
C
T
PD = Power Dissipation in W (this value depends upon the
Airflow
JC
JC
CASE
= 7.1°C/W for 208-lead MQFP
= 5.1°C/W for 196-ball Mini-BGA
(Linear Ft/Min)
Table V. Thermal Characteristics (208-Lead MQFP)
CA
specific application; a method for calculating PD is shown
under Power Dissipation)
= Case temperature (measured on top surface of package)
(°C/W)
30
–
–
30
30
(Linear Ft/Min)
f (MHz)
CA
(°C/W)
Table VI. 196-Ball Mini-BGA
T
CASE
=
0
24
T
AMB
10.9
10.9
10.9
10.9
10.9
V
100
20
DD
+
0
38
(
2
PD
(V)
×
19
200
200
29
θ
CA
)
= P
0.019
0.000
0.000
0.042
0.007
P
400
17
EXT
400
23
EXT
= 0.068 W
600
13
(W)
REV. 0