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參數(shù)資料
| 型號： | ADSP-2188NKST-320 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | DSP Microcomputer |
| 中文描述： | 24-BIT, 40 MHz, OTHER DSP, PQFP100 |
| 封裝： | MS-026BED, LQFP-100 |
| 文件頁數(shù)： | 23/48頁 |
| 文件大?。?/td> | 1571K |
| 代理商： | ADSP-2188NKST-320 |
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–23–
REV. 0
ADSP-218xN Series
ESD SENSITIVITY
Power Dissipation
To determine total power dissipation in a specific applica-
tion, the following equation should be applied for each
output:
C
V
DD
2
f
where:
C
= load capacitance,
f
= output switching frequency.
Example:
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.
Application operates at V
DDEXT
= 3.3 V and t
CK
= 30 ns.
Total Power Dissipation = P
INT
+ (
C
V
DDEXT
2
f)
P
INT
= internal power dissipation from
Figure 20 on
page 26
.
(C
V
DDEXT
2
f)
is calculated for each output, as in the
example in
Table 13
.
Total power dissipation for this example is
P
INT
+ 45.72 mW.
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V
readily accumulate on the human body and test equipment and can discharge without
detection. Although the ADSP-218xN features proprietary ESD protection circuitry,
permanent damage may occur on devices subjected to high-energy electrostatic
discharges. Therefore, proper ESD precautions are recommended to avoid perfor-
mance degradation or loss of functionality.
CAUTION
Table 13. Example Power Dissipation Calculation
Parameters
# of Pins
× C (pF)
× V
DDEXT
2
(V)
3.3
2
3.3
2
3.3
2
3.3
2
× f (MHz)
PD (mW)
Address
Data Output, WR
RD
CLKOUT, DMS
7
9
1
2
10
10
10
10
20.0
20.0
20.0
40.0
15.25
19.59
2.18
8.70
45.72
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相關(guān)代理商/技術(shù)參數(shù) |
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| ADSP-2188NKSTZ-320 | 功能描述:IC DSP CONTROLLER 16BIT 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:ADSP-21xx 標(biāo)準(zhǔn)包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI，以太網(wǎng)，RS-232 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| ADSP-2188NKSTZ-3202 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2188N-WFA | 制造商:Analog Devices 功能描述: |
| ADSP-2189 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2189M | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
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