- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373784 > ZL40518LDG (Zarlink Semiconductor Inc.) 3 Channel Laser Diode Driver PDF資料下載
參數(shù)資料
| 型號： | ZL40518LDG |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | 3 Channel Laser Diode Driver |
| 中文描述： | 3通道激光二極管驅(qū)動器 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 330K |
| 代理商： | ZL40518LDG |
ZL40518
Data Sheet
4
Zarlink Semiconductor Inc.
Small current step size Rise and Fall time will be determined by the Bandwidth of the combined network. This is
dominated by the Interconnect Inductance and the output Capacitance. Similarly, the overshoot and undershoot will
be determined by the Q of the network. This is a function of the Source Impedance from the ZL40518, the
Interconnect inductance and the Load impedance of the Laser Diode. Figure 3 includes example simplified
estimates of the Q and BW of the combined Laser Diode, ZL40518 and interconnect network for two different
interconnect inductance values (5 nH & 7 nH) and two different Diode On resistance (3 Ohm & 7 Ohm) . This
simple analysis illustrates the change in BW and Q of the network depending on these parameters. This in Turn
effects the Rise Time and Fall time and the Overshoot and Undershoot performance achieved in the application.
Specified Electrical Performance with 15 mm Interconnect and Zarlink ZLE40518 Evaluation Board
The specified performance in the table are results based on the electrical measurements and simulations across
full process corners using the Zarlink Evaluation Board using a 6.8 Ohm resistive load to ground. The track
interconnect between ZL40518 and the 6.8 Ohm Resistor is 15 mm long and uses a 2 mm wide track on single
sided FR4 board. The return path is via two 2 mm wide tracks spaced 0.25 mm either side of the track between
output and the 6.8 ohm resistor. The combined forward and return path forms a co planar transmission line with a
characteristic impedance of approximately 120 ohms. The tight coupled return paths carrying the return current
reduce the effective series inductance (Leff) which can be approximated to:-
L
eff
= 2 * Lint * (1 - K) + 2 * Lfix * (1 - K).
The ZLE40518 board has two positions for the Laser Diode at two different distances. (15 and 30 mm).
The measured value of L
eff
is 7 nH.
The estimated value of L
eff
= 2 * 8 (1 - 0.5) = 8 nH.
The actual pulse response achieved in an application is thus dependent on the application.
Application Layer Guide Lines
Minimize Interconnect Inductance by:-
a. Using Short Interconnect Distance
b. Use wide interconnect tracks
c. Keep the return path tightly coupled to the forward path
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZL40518DGE1 | 3 Channel Laser Diode Driver |
| ZL40539 | Dual Output CD and DVD 4 Channel Laser Diode Driver |
| ZL40539LCF | Dual Output CD and DVD 4 Channel Laser Diode Driver |
| ZL40539LCG | Dual Output CD and DVD 4 Channel Laser Diode Driver |
| ZL40800 | 6 GHz Fixed Modulus Prescalers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL40539 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Dual Output CD and DVD 4 Channel Laser Diode Driver |
| ZL40539LCF | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:LASER DRVR 4-CH 32QFN - Trays |
| ZL40539LCG | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:4 CHAN LVDS LDD C3C31C - Trays 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: 制造商:ZARLINK 功能描述: |
| ZL40800 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:6 GHz Fixed Modulus Prescalers |
| ZL40800/DCA | 制造商:Microsemi Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。