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參數(shù)資料
| 型號(hào)： | ADSP2185 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | DSP Microcomputer |
| 中文描述： | DSP微機(jī) |
| 文件頁(yè)數(shù)： | 15/32頁(yè) |
| 文件大?。?/td> | 289K |
| 代理商： | ADSP2185 |
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ADSP-2185
–15–
REV. 0
E NVIRONME NT AL CONDIT IONS
Ambient T emperature Rating:
T
AMB
= T
CASE
– (PD x
θ
CA
)
T
CASE
= Case T emperature in
°
C
PD = Power Dissipation in W
θ
CA
= T hermal Resistance (Case-to-Ambient)
θ
JA
= T hermal Resistance (Junction-to-Ambient)
θ
JC
= T hermal Resistance (Junction-to-Case)
Package
u
JA
u
JC
u
CA
T QFP
50
°
C/W
2
°
C/W
48
°
C/W
POWE R DISSIPAT ION
T o determine total power dissipation in a specific application,
the following equation should be applied for each output:
C
×
V
DD2
×
f
C
= load capacitance,
f
= output switching frequency.
E xample:
In an 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
= 5.0 V and t
CK
= 30 ns.
Total Power Dissipation = P
INT
+ (
C
×
V
DD
2
×
f
)
P
INT
= internal power dissipation from Power vs. Frequency
graph (Figure 8).
(
C
×
V
DD
2
×
f
) is calculated for each output:
# of
Pins
3
C
3
V
DD2
3
f
Address,
DMS
Data Output,
WR
9
RD
CLK OUT
8
×
10 pF
×
5
2
V
×
10 pF
×
5
2
V
×
10 pF
×
5
2
V
×
10 pF
×
5
2
V
×
33.3 MHz = 66.6 mW
×
16.67 MHz = 37.5 mW
×
16.67 MHz = 4.2 mW
×
33.3 MHz =
1
1
8.3 mW
116.6 mW
T otal power dissipation for this example is P
INT
+ 116.6 mW.
1/
t
CK
– MHz
P
I
)
440
420
340
280
28
34
29
30
31
32
33
360
320
300
400
380
260
240
220
200
2185 POWER, INTERNAL
1, 3, 4
V
DD
= 5.5V
V
DD
= 5.0V
V
DD
= 4.5V
396mW
315mW
243mW
349mW
277mW
214mW
1/f
CK
– MHz
95
60
45
28
34
29
30
31
32
33
90
65
55
50
85
75
80
70
40
POWER, IDLE
1, 2
P
I
)
83mW
62mW
45mW
40mW
56mW
75mW
V
DD
= 5.5V
V
DD
= 5.0V
V
DD
= 4.5V
1/f
CK
– MHz
75
40
30
28
34
29
30
31
32
33
70
45
35
65
55
60
50
25
POWER, IDLE nMODES
3
62mW
38mW
36mW
34mW
36mW
56mW
IDLE
IDLE (16)
IDLE (128)
P
I
)
VALID FOR ALL TEMPERATURE GRADES.
1
POWER REFLECTS DEVICE OPERATING WITH NO OUTPUT LOADS.
2
IDLE REFERS TO ADSP-2185 STATE OF OPERATION DURING EXECUTION OF IDLE
INSTRUCTION. DEASSERTED PINS ARE DRIVEN TO EITHER V
DD
OR GND.
3
TYPICAL POWER DISSIPATION AT 5.0V V
DD
AND 25
°
C EXCEPT WHERE SPECIFIED.
4
I
MEASUREMENT TAKEN WITH ALL INSTRUCTIONS EXECUTING FROM INTERNAL
MEMORY. 50% OF THE INSTRUCTIONS ARE MULTIFUNCTION (TYPES 1, 4, 5, 12, 13, 14),
30% ARE TYPE 2 AND TYPE 6, AND 20% ARE IDLE INSTRUCTIONS.
Figure 8. Power vs. Frequency
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADSP-2185 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2185BST-115 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 28.8MHz 28.8MIPS 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:DSP,5V,28MHZ,32K WORD RAM, 100TQFP - Bulk |
| ADSP-2185BST-133 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 33.3MHz 33.3MIPS 100-Pin LQFP 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 32-BIT 制造商:Analog Devices 功能描述:DIGITAL SIGNAL PROCESSOR IC, DSP Type:Floating Point, Package / Case:100-TQFP, S |
| ADSP-2185BSTZ-133 | 功能描述:IC DSP CONTROLLER 16BIT 100TQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號(hào)處理器） 系列:ADSP-21xx 標(biāo)準(zhǔn)包裝:40 系列:TMS320DM64x, DaVinci™ 類型:定點(diǎn) 接口:I²C，McASP，McBSP 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:160kB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:0°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:548-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:548-FCBGA（27x27） 包裝:托盤 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA |
| ADSP-2185BSTZ-133 | 制造商:Analog Devices 功能描述:IC 16-BIT MICROCOMPUTER |
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