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參數資料
| 型號： | ADSP-2100A |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | ADSP-2100 Family DSP Microcomputers |
| 中文描述： | 的ADSP - 2100系列DSP的微機 |
| 文件頁數： | 27/64頁 |
| 文件大?。?/td> | 668K |
| 代理商： | ADSP-2100A |
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ADSP-21xx
REV. B
–27–
POWE R DISSIPAT ION E X AMPLE
T o determine total power dissipation in a specific application,
the following equation should be applied for each output:
C
×
V
DD
2
×
f
C
= load capacitance,
f
= output switching frequency.
E xample:
In an ADSP-2103 application where external data memory is
used and no other outputs are active, power dissipation is
calculated as follows:
Assumptions:
External data memory is accessed every cycle with 50% of the
address pins switching.
External data memory writes occur every other cycle with
50% of the data pins switching.
Each address and data pin has a 10 pF total load at the pin.
T he application operates at V
DD
= 3.3 V and t
CK
= 100 ns.
Total Power Dissipation
=
P
INT
+
(C
×
V
DD2
×
f
)
P
INT
= internal power dissipation (from Figure 23).
(
C
×
V
DD2
×
f
) is calculated for each output:
# of
Pins
×
C
Output
×
V
DD2
×
f
Address,
DMS
8
Data,
WR
RD
CLK OUT
×
10 pF
×
3.3
2
V
×
10 MHz = 8.71 mW
×
10 pF
×
3.3
2
V
×
5 MHz
×
10 pF
×
3.3
2
V
×
5 MHz
×
10 pF
×
3.3
2
V
×
10 MHz = 1.09 mW
9
1
1
= 4.90 mW
= 0.55 mW
15.25 mW
T otal power dissipation for this example = P
INT
+ 15.25 mW.
E NVIRONME NT AL CONDIT IONS
Ambient T emperature Rating:
T
AMB
= T
CASE
– (PD
×
θ
C A
)
T
CASE
= Case T emperature in
°
C
PD = Power Dissipation in W
θ
C A
= T hermal Resistance (Case-to-Ambient)
θ
JA
= T hermal Resistance (Junction-to-Ambient)
θ
JC
= T hermal Resistance (Junction-to-Case)
Package
θ
JA
θ
JC
θ
CA
PGA
PQFP
27
°
C/W
60
°
C/W
16
°
C/W
18
°
C/W
11
°
C/W
42
°
C/W
SPECIFICATIONS (ADSP-2103/2162/2164)
Figure 25. Typical Output Valid Delay or Hold vs. Load
Capacitance, C
L
(at Maximum Ambient Operating Temperature)
Figure 24. Typical Output Rise Time vs. Load Capacitance, C
L
(at Maximum Ambient Operating Temperature)
CAPACIT IVE LOADING
Figures 24 and 25 show capacitive loading characteristics for the
ADSP-2103, ADSP-2162, and ADSP-2164.
25
150
125
100
75
C
L
– pF
50
R 30
10
5
15
20
25
V
DD
= 3.0V
V
–2
+4
+2
+6
NOMINAL
25
150
125
100
75
C
L
– pF
50
+8
V
DD
= 3.0V
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| ADSP-2101 | 16-Bit Fixed-Point DSP(16位定點型DSP) |
| ADSP-21060KB-160 | ADSP-2106x SHARC DSP Microcomputer Family |
| ADSP-21060 | ADSP-2106x SHARC DSP Microcomputer Family |
| ADSP-21060L | ADSP-2106x SHARC DSP Microcomputer Family |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADSP-2100AJG | 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor |
| ADSP-2100AJP | 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor |
| ADSP-2100AKG | 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor |
| ADSP-2100AKP | 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor |
| ADSP-2100ASG | 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor |
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