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參數(shù)資料
| 型號： | ICS853013AMLFT |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 853013 SERIES, LOW SKEW CLOCK DRIVER, 3 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20 |
| 封裝： | 7.50 X 12.80 MM, 2.30 MM HEIGHT, LEAD FREE, MS-013, MO-119, SOIC-20 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大小： | 448K |
| 代理商： | ICS853013AMLFT |
853013AM
www.icst.com/products/hiperclocks.html
REV. A OCTOBER 19, 2005
12
Integrated
Circuit
Systems, Inc.
ICS853013
LOW SKEW, DUAL, 1-TO-3, DIFFERENTIAL-TO-
2.5V/3.3V/5V LVPECL/ECL FANOUT BUFFER
θθθθθ
JA
by Velocity (Linear Feet per Minute)
POWER CONSIDERATIONS
This section provides information on power dissipation and junction temperature for the ICS853013.
Equations and example calculations are also provided.
1. Power Dissipation.
The total power dissipation for the ICS853013 is the sum of the core power plus the power dissipated in the load(s).
The following is the power dissipation for V
CC = 5.25V, which gives worst case results.
NOTE: Please refer to Section 3 for details on calculating power dissipated in the load.
Power (core)
MAX = VCC_MAX * IEE_MAX = 5.25V * 60mA = 315mW
Power (outputs)
MAX = 30.94mW/Loaded Output pair
If all outputs are loaded, the total power is 6 * 30.94mW = 185.64mW
Total Power
_MAX (5.25V, with all outputs switching) = 315mW + 185.64mW = 500.64mW
2. Junction Temperature.
Junction temperature, Tj, is the temperature at the junction of the bond wire and bond pad and directly affects the reliability of the
device. The maximum recommended junction temperature for HiPerClockSTM devices is 125°C.
The equation for Tj is as follows: Tj =
θ
JA * Pd_total + TA
Tj = Junction Temperature
θ
JA = Junction-to-Ambient Thermal Resistance
Pd_total = Total Device Power Dissipation (example calculation is in section 1 above)
T
A = Ambient Temperature
In order to calculate junction temperature, the appropriate junction-to-ambient thermal resistance
θ
JA must be used. Assuming a
moderate air flow of 200 linear feet per minute and a multi-layer board, the appropriate value is 39.7°C/W per Table 6 below.
Therefore, Tj for an ambient temperature of 85°C with all outputs switching is:
85°C + 0.500W * 39.7°C/W = 104.85°C. This is well below the limit of 125°C.
This calculation is only an example. Tj will obviously vary depending on the number of loaded outputs, supply voltage, air flow,
and the type of board (single layer or multi-layer).
TABLE 6. THERMAL RESISTANCE
θθθθθ
JA
FOR
20-PIN SOIC, FORCED CONVECTION
0
200
500
Single-Layer PCB, JEDEC Standard Test Boards
83.2°C/W
65.7°C/W
57.5°C/W
Multi-Layer PCB, JEDEC Standard Test Boards
46.2°C/W
39.7°C/W
36.8°C/W
NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.
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| ICS853013AMT | 853013 SERIES, LOW SKEW CLOCK DRIVER, 3 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20 |
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| ICS853014BGLFT | 853014 SERIES, LOW SKEW CLOCK DRIVER, 5 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20 |
| ICS853016AG | 853016 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ICS853014BGLF | 功能描述:IC CLOCK BUFFER MUX 2:5 20-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:HiPerClockS™ 標準包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| ICS853014BGLFT | 功能描述:IC CLOCK BUFFER MUX 2:5 20-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:HiPerClockS™ 標準包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| ICS853014BGT | 制造商:INT_CIR_SYS 功能描述: |
| ICS853016AGLF | 功能描述:IC CLOCK BUFFER 1:2 3GHZ 8-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:HiPerClockS™ 標準包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| ICS853016AGLFT | 功能描述:IC CLOCK BUFFER 1:2 3GHZ 8-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:HiPerClockS™ 標準包裝:74 系列:- 類型:扇出緩沖器（分配） 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 輸入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 輸出:HCSL，LVDS 頻率 - 最大:400MHz 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:32-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:32-QFN（5x5） 包裝:管件 |
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