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參數(shù)資料
| 型號(hào)： | ISPPAC-CLK5510V-01TN48I |
| 廠商： | LATTICE SEMICONDUCTOR CORP |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | LED Area Light; Forward Current:300mA; Operating Temperature Range:0 C to +50 C; LED Color:Red; Leaded Process Compatible:No; Light Emitting Area:80x80mm; Peak Reflow Compatible (260 C):No; Supply Current:250mA |
| 中文描述： | 5500 SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| 封裝： | LEAD FREE, TQFP-48 |
| 文件頁數(shù)： | 24/43頁 |
| 文件大?。?/td> | 867K |
| 代理商： | ISPPAC-CLK5510V-01TN48I |
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Lattice Semiconductor
ispClock5500 Family Data Sheet
24
With a maximum recommended operating junction temperature (T
JOP
) of 115°C for an industrial grade device, the
maximum allowable ambient temperature (T
AMAX
) can be estimated as
T
AMAX
= T
JOP
- PD
MAX
x
Θ
JA
= 115°C - 1.67W x 35°C/W = 56°C
(4)
where
Θ
JA
= 35 °C/W in still air for the ispClock5520’s TQFP100 package.
The above analysis represents the worst-case scenario. Signi
fi
cant improvement in maximum ambient operating
temperature can be realized with additional cooling. Providing a 200 LFM (Linear Feet per Minute) air
fl
ow reduces
Θ
JA
to 29°C/W, which results in a maximum ambient operating temperature of 66°C.
In practice, however, the absolute worst-case situation will be relatively rare, as not all outputs may be running at
maximum output frequency in a given application. Additionally, if the internal VCO is operating at less than its max-
imum frequency (640MHz), it requires less current on the VCCD pin. In these situations, one can estimate the
effective I
CCO
for each bank and the effective I
CCD
for the digital core functions based on output frequency and
VCO frequency. Normalized curves relating current to operating frequency for these parameters may be found in
the Typical Performance Characteristics section.
While it is possible to perform detailed calculations to estimate the maximum ambient operating temperature from
operating conditions, some simpler rule-of-thumb guidance can also be obtained through the derating curves
shown in Figure 22. The curves in Figure 22a show the maximum ambient operating temperature permitted when
operating a given number of output banks at the maximum output frequency (320MHz). Note that it is assumed that
both outputs in each bank are active.
Figure 22. Maximum Ambient Temperature vs. Number of Active Output Banks
Temperature Derating Curves
(Outputs LVCMOS 3.3V, f
OUT
=320 MHz)
Temperature Derating Curves
(Outputs LVCMOS 3.3V, f
OUT
=100 MHz)
Temperature Derating Curves
(Outputs LVDS, f
OUT
=320 MHz)
40
50
60
70
80
90
40
50
60
70
80
90
40
50
60
70
80
90
0
2
4
6
8
10
M
°
C
M
°
C
5520 Commercial
5520 Industrial
5510 Commericial
5510 Industrial
# Active Output Banks
(a)
0
2
4
6
8
10
# Active Output Banks
(b)
0
2
4
6
8
10
# Active Output Banks
(c)
M
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISPPAC-CLK5610V-01T100I | Linear Array Light; LED Color:Blue; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No; Supply Current:1.6A; Supply Voltage:24VDC; Wavelength:470nm |
| ISPCLOCK5600 | In-System Programmable, Zero-Delay Clock Generator with Universal Fan-Out Buffer |
| ISPPAC-CLK5610V-01T100C | In-System Programmable, Zero-Delay Clock Generator with Universal Fan-Out Buffer |
| ISPPAC-CLK5620V-01T100C | LED Area Light; LED Color:Blue; Leaded Process Compatible:No; Light Emitting Area:80x80mm; Peak Reflow Compatible (260 C):No; Supply Current:250mA; Supply Voltage:24VDC; Wavelength:470nm |
| ISPPAC-CLK5620V-01T100I | In-System Programmable, Zero-Delay Clock Generator with Universal Fan-Out Buffer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISPPACCLK5510V-01TN48I | 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:In-System Programmable Clock Generator with Universal Fan-Out Buffer |
| ISPPAC-CLK5520V-01T100C | 功能描述:時(shí)鐘驅(qū)動(dòng)器及分配 PROGRAMMABLE CLOCK GENERATOR RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| ISPPACCLK5520V-01T100C | 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:In-System Programmable Clock Generator with Universal Fan-Out Buffer |
| ISPPAC-CLK5520V-01T100I | 功能描述:時(shí)鐘驅(qū)動(dòng)器及分配 PROGRAMMABLE CLOCK GENERATOR RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| ISPPACCLK5520V-01T100I | 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:In-System Programmable Clock Generator with Universal Fan-Out Buffer |
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