adsp-21061l Analog Devices, Inc., adsp-21061l Datasheet - Page 16

• Manufacturer Part Number: adsp-21061l
• Description: Commercial Grade Sharc Family Dsp Microcomputer
• Manufacturer: Analog Devices, Inc.

ADSP-21061/ADSP-21061L
INTERNAL POWER DISSIPATION (5 V)
These specifications apply to the internal power portion of V
only. See the Power Dissipation section of this data sheet for cal-
culation of external supply current and total supply current. For
To estimate power consumption for a specific application, use
the following equation where % is the amount of time your pro-
gram spends in that state:
%PEAK I
%IDLE I
1
2
3
4
5
Operation
Instruction Type
Instruction Fetch
Core Memory Access
Internal Memory DMA
Parameter
I
I
I
I
I
The test program used to measure I
I
I
Idle denotes ADSP-21061L state during execution of IDLE instruction.
Idle16 denotes ADSP-2106x state during execution of IDLE16 instruction.
DDINPEAK
DDINHIGH
DDINLOW
DDIDLE
DDIDLE
DDINHIGH
DDINLOW
measurements made using typical applications are less than specified.
Supply Current (Idle)
Supply Current (Idle16)
DDIDLE
is a composite average based on a range of low activity code.
DDINPEAK
Supply Current (Internal)
Supply Current (Internal)
Supply Current (Internal)
is a composite average based on a range of high activity code. I
= power consumption
+ %HIGH I
4
DDINPEAK
DDINHIGH
5
3
1
2
represents worst-case processor operation and is not sustainable under normal application conditions. Actual internal power
+ %LOW I
Peak Activity (I
Multifunction
Cache
2 per Cycle (DM and PM)
1 per Cycle
Test Conditions
t
t
t
t
t
t
t
t
t
V
V
DDINLOW
CK
CK
CK
CK
CK
CK
CK
CK
CK
DD
DD
Rev. C | Page 16 of 56 | July 2007
= 30 ns, V
= 25 ns, V
= 20 ns, V
= 30 ns, V
= 25 ns, V
= 20 ns, V
= 30 ns, V
= 25 ns, V
= 20 ns, V
= Max
= Max
DDINLOW
DD
+
DD
DD
DD
DD
DD
DD
DD
DD
DD
= Max
= Max
= Max
= Max
= Max
= Max
= Max
= Max
= Max
DDINPEAK
is a composite average based on a range of low activity code.
)
a complete discussion of the code used to measure power dissi-
pation, see the technical note “SHARC Power Dissipation
Measurements.”
Specifications are based on the operating scenarios:
High Activity (I
Multifunction
Internal Memory
1 per Cycle (DM)
1 per 2 Cycles
Max
595
680
850
460
540
670
270
320
390
200
55
DDINHIGH
)
Low Activity (I
Single Function
Internal Memory
None
1 per 2 Cycles
Unit
mA
mA
mA
mA
mA
mA
mA
mA
DDINLOW
)