ADSP-21061 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
제조사
ADSP-21061 Datasheet PDF : 52 Pages
| |||
ADSP-21061/ADSP-21061L
INTERNAL POWER DISSIPATION (3.3 V)
These specifications apply to the internal power portion of VDD
only. See the Power Dissipation section of this data sheet for cal-
culation of external supply current and total supply current. For
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:
Operation
Instruction Type
Instruction Fetch
Core memory Access
Internal Memory DMA
Peak Activity (IDDINPEAK)
Multifunction
Cache
2 per Cycle (DM and PM)
1 per Cycle
High Activity (IDDINHIGH)
Multifunction
Internal Memory
1 per Cycle (DM)
1 per 2 Cycles
Low Activity (IDDINLOW)
Single Function
Internal Memory
None
1 per 2 Cycles
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 IDDINPEAK + %HIGH IDDINHIGH + %LOW IDDINLOW + %IDLE
IDDIDLE = power consumption
Parameter
Test Conditions
Max
Unit
IDDINPEAK Supply Current (Internal)1
IDDINHIGH Supply Current (Internal)2
IDDINLOW Supply Current (Internal)3
IDDIDLE Supply Current (Idle)4
IDDIDLE Supply Current (Idle)5
tCK = 25 ns, VDD = Max
tCK = 22.5 ns, VDD = Max
tCK = 25 ns, VDD = Max
tCK = 22.5 ns, VDD = Max
tCK = 25 ns, VDD = Max
tCK = 22.5 ns, VDD = Max
VDD = Max
VDD = Max
480
mA
535
mA
380
mA
425
mA
220
mA
245
mA
180
mA
50
mA
1 The test program used to measure IDDINPEAK represents worst-case processor operation and is not sustainable under normal application conditions. Actual internal power
measurements made using typical applications are less than specified.
2 IDDINHIGH is a composite average based on a range of high activity code. IDDINLOW is a composite average based on a range of low activity code.
3 IDDINLOW is a composite average based on a range of low activity code.
4 Idle denotes ADSP-21061L state during execution of IDLE instruction.
5 Idle16 denotes ADSP-21061L state during execution of IDLE16 instruction.
Rev. D | Page 18 of 52 | May 2013
Share Link: 