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ZL40539 Fiches technique(PDF) 5 Page - Zarlink Semiconductor Inc

No de pièce ZL40539
Description  Dual Output CD and DVD 4 Channel Laser Diode Driver
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Fabricant  ZARLINK [Zarlink Semiconductor Inc]
Site Internet  http://www.zarlink.com
Logo ZARLINK - Zarlink Semiconductor Inc

ZL40539 Fiches technique(HTML) 5 Page - Zarlink Semiconductor Inc

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ZL40539
Data Sheet
5
Zarlink Semiconductor Inc.
Specified Electrical Performance with 15 mm Interconnect and Zarlink ZLE40539 Evaluation Board
The specified transient pulse performance in the table are results based on the electrical measurements and
simulations across full process corners using the Zarlink Evaluation Board using a 3.9 Ohm resistive load to
ground.
The track interconnect between ZL40539 and the 3.9 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 3.9 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:-
Leff = 2 * Lint * (1 - K) + 2 * Lfix * (1 - K).
The ZLE40539 board has two positions for the Laser Diode at two different distances. (15 and 30 mm).
The measured value of Leff is 7 nH.
The estimated value of Leff = 2 * 8 (1 – 0.5) = 8 nH.
The actual pulse response achieved in an application is thus dependent on the application.
Application Layout Guide Lines
Minimize Interconnect Inductance by:
1. Using Short Interconnect Distance
2. Use wide interconnect tracks
3. Keep the return path tightly coupled to the forward path
ZL40539E Interconnect
Figure 4 - ZLE40539 Application Board Electrical Interconnect


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Numéro de composants électroniques

No de pièceDescriptionHtml ViewFabricant
ZL40511 Dual Output DVD and CD 4 Channel Laser Diode Drivers 1  2  3  4  5  More Zarlink Semiconductor Inc
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ZL40510 Dual Output DVD and CD 4 Channel Laser Diode Drivers 1  2  3  4  5  More Zarlink Semiconductor Inc
LMH6525 Four-hannel Laser Diode Driver with Dual Output 1  2  3  4  5  More National Semiconductor (TI)
ATR0807 THREE CHANNEL LASER DRIVER WITH RF OSCILLATOR AND TWO OUTPUTS 1  2  3  4  5  More ATMEL Corporation
SMM205 Dual Channel Supply Voltage Marginer and Active DC Output Controller 1  2  3  4  5  More Summit Microelectronics, Inc.
SY100EL1003 LASER DIODE DRIVER WITH OUTPUT ENABLE 1  2  3  4  5  More Micrel Semiconductor
SY88902 LASER DIODE DRIVER WTIH OUTPUT ENABLE 1  2  3  4  5  More Micrel Semiconductor
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ZL40518 3 Channel Laser Diode Driver 1  2  3  4  5  More Zarlink Semiconductor Inc

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