IDT / ICS LVDS CLOCK GENERATOR 10 " />
參數(shù)資料
型號: ICS87421AMILFT
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 2/14頁
文件大?。?/td> 0K
描述: IC CLOCK GEN LVDS 8-SOIC
標(biāo)準(zhǔn)包裝: 2,500
系列: HiPerClockS™
類型: 時鐘發(fā)生器
PLL:
輸入: HCSL,LVDS,LVHSTL,LVPECL,SSTL
輸出: LVDS
電路數(shù): 1
比率 - 輸入:輸出: 1:1
差分 - 輸入:輸出: 是/是
頻率 - 最大: 1GHz
除法器/乘法器: 是/無
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
其它名稱: 87421AMILFT
IDT / ICS LVDS CLOCK GENERATOR
10
ICS87421AMI REV. A OCTOBER 3, 2007
ICS87421I
÷1/÷2 DIFFERENTIAL-TO-LVDS CLOCK GENERATOR
POWER CONSIDERATIONS
This section provides information on power dissipation and junction temperature for the ICS87421I.
Equations and example calculations are also provided.
1. Power Dissipation.
The total power dissipation for the ICS87421I is the sum of the core power plus the power dissipated in the load(s).
The following is the power dissipation for V
DD
= 3.3V + 5% = 3.465V, which gives worst case results.
Power_
MAX
= V
DD_MAX
* I
DD_MAX
= 3.465V * 55mA = 198.58mW
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 HiPerClockS
TM 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 no air
flow and a multi-layer board, the appropriate value is 96°C/W per Table 6 below.
Therefore, Tj for an ambient temperature of 85°C with all outputs switching is:
85°C + 0.199W * 96°C/W = 104.1°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
8-PIN SOIC, FORCED CONVECTION
θθθθθ
JA
by Velocity (Meters per Second)
0
1
2.5
Multi-Layer PCB, JEDEC Standard Test Boards
96°C/W
87°C/W
82°C/W
相關(guān)PDF資料
PDF描述
ICS8745BM-21LFT IC CLK GEN 1:1 DIFF-LVDS 20-SOIC
ICS874S02BMILF IC CLK GEN 1:1 DIFF ZD 20SOIC
ICS8752CYLFT IC CLK MULT/ZD BUFFER 32-LQFP
ICS87608AYILFT IC CLK GEN PCI/PCI-X 32-LQFP
ICS8761CYILF IC CLK GEN PCI/PCI-X 64-LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICS8743004DKILF 功能描述:IC CLK BUFFER ZD PLL 40VFQFN RoHS:是 類別:集成電路 (IC) >> 時鐘/計(jì)時 - 專用 系列:HiPerClockS™, FemtoClock™, PCI Express® (PCIe) 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP(0.209",5.30mm 寬) 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT
ICS8743004DKILFT 功能描述:IC CLK BUFFER ZD PLL 40VFQFN RoHS:是 類別:集成電路 (IC) >> 時鐘/計(jì)時 - 專用 系列:HiPerClockS™, FemtoClock™, PCI Express® (PCIe) 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP(0.209",5.30mm 寬) 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT
ICS8743008DKILF 制造商:Integrated Device Technology Inc 功能描述:IC CLK BUFFER ZD PLL 56VFQFN
ICS8745BM-21LF 功能描述:IC CLK GEN ZD DIFF-LVDS 20-SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計(jì)時 - 時鐘發(fā)生器,PLL,頻率合成器 系列:HiPerClockS™ 標(biāo)準(zhǔn)包裝:1,000 系列:Precision Edge® 類型:時鐘/頻率合成器 PLL:無 輸入:CML,PECL 輸出:CML 電路數(shù):1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/是 頻率 - 最大:10.7GHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤,16-MLF? 供應(yīng)商設(shè)備封裝:16-MLF?(3x3) 包裝:帶卷 (TR) 其它名稱:SY58052UMGTRSY58052UMGTR-ND
ICS8745BM-21LFT 功能描述:IC CLK GEN 1:1 DIFF-LVDS 20-SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計(jì)時 - 時鐘發(fā)生器,PLL,頻率合成器 系列:HiPerClockS™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時鐘/頻率合成器,扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT