- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄360773 > ICS85320AMI LVCMOS / LVTTL-TO-DIFFERENTIAL 2.5V / 3.3V LVPECL TRANSLATOR PDF資料下載
參數(shù)資料
| 型號： | ICS85320AMI |
| 英文描述： | LVCMOS / LVTTL-TO-DIFFERENTIAL 2.5V / 3.3V LVPECL TRANSLATOR |
| 中文描述： | 的LVCMOS / LVTTL至差分為2.5V / 3.3V的LVPECL的譯者 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 198K |
| 代理商： | ICS85320AMI |
85320AMI
www.icst.com/products/hiperclocks.html
REV. A AUGUST 25, 2004
10
Integrated
Circuit
Systems, Inc.
ICS85320I
LVCMOS / LVTTL-
TO
-D
IFFERENTIAL
2.5V / 3.3V LVPECL T
RANSLATOR
P
OWER
C
ONSIDERATIONS
This section provides information on power dissipation and junction temperature for the ICS85320I.
Equations and example calculations are also provided.
1. Power Dissipation.
The total power dissipation for the ICS85320I is the sum of the core power plus the power dissipated in the load(s).
The following is the power dissipation for V
= 3.3V + 5% = 3.465V, which gives worst case results.
NOTE:
Please refer to Section 3 for details on calculating power dissipated in the load.
Power (core)
MAX
= V
CC_MAX
* I
EE_MAX
= 3.465V * 25mA =
86.6mW
Power (outputs)
MAX
=
30.2mW/Loaded Output pair
Total Power
_MAX
(3.465V, with all outputs switching) =
86.6mW + 30.2mW =
116.6mW
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 + T
A
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
must be used. Assuming a
moderate air flow of 200 linear feet per minute and a multi-layer board, the appropriate value is 103.3°C/W per Table 5 below.
Therefore, Tj for an ambient temperature of 85°C with all outputs switching is:
85°C + 0.117W * 103.3°C/W = 97.1°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).
θ
JA
by Velocity (Linear Feet per Minute)
T
ABLE
5. T
HERMAL
R
ESISTANCE
θ
JA
FOR
8-
PIN
SOIC, F
ORCED
C
ONVECTION
0
200
500
Single-Layer PCB, JEDEC Standard Test Boards
Multi-Layer PCB, JEDEC Standard Test Boards
153.3°C/W
112.7°C/W
128.5°C/W
103.3°C/W
115.5°C/W
97.1°C/W
NOTE:
Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS85320AMIT | LVCMOS / LVTTL-TO-DIFFERENTIAL 2.5V / 3.3V LVPECL TRANSLATOR |
| ICS85320I | Replaced by SN74LS174 : 6-bit D-type positive-edge-triggered flip-flops with clear 16-PDIP 0 to 70 |
| ICS85322AM | DUAL LVCMOS/LVTTL-TO-DIFFERENTIAL 2.5V/3.3V LVPECL TRANSLATOR |
| ICS85322 | DUAL LVCMOS/LVTTL-TO-DIFFERENTIAL 2.5V/3.3V LVPECL TRANSLATOR |
| ICS85322AM-T | DUAL LVCMOS/LVTTL-TO-DIFFERENTIAL 2.5V/3.3V LVPECL TRANSLATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS85320AMILF | 功能描述:IC CLK TRANSLA 1:1 267MHZ 8-SOIC RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:HiPerClockS™ 標(biāo)準(zhǔn)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 |
| ICS85320AMILFT | 功能描述:IC CLK TRANSLA 1:1 267MHZ 8-SOIC RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:HiPerClockS™ 標(biāo)準(zhǔn)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 |
| ICS853210AYLF | 功能描述:IC CLOCK BUFFER 1:5 3GHZ 32-LQFP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:HiPerClockS™ 標(biāo)準(zhǔn)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 |
| ICS853210AYLFT | 功能描述:IC CLOCK BUFFER 1:5 3GHZ 32-LQFP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:HiPerClockS™ 標(biāo)準(zhǔn)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 |
| ICS85322AGILF | 制造商:Integrated Device Technology Inc 功能描述:IC TRANSLATOR LVPECL 8TSSOP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。