Instruction/ maintenance manual of the product MAX4888A Maxim
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General Description The MAX4888A/MAX4889A high-speed passive switches route PCI Express ® (PCIe) data between two possible destinations. The MAX4888A is a quad single-pole/dou- ble-throw (4 x SPDT) switch ideally suited for switching two half lanes of PCIe data between two destinations.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (V+ = 3.0V to 3.6V, T A = -40°C to +85°C, unless otherwise noted.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches _______________________________________________________________________________________ 3 Note 2: All units are 100% production tested at T A = +85°C. Limits over the operating temperature range are guaranteed by design and characterization and are not production tested.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches 4 _______________________________________________________________________________________ T ypical Operating Characteristics (T A = +25°C, unless otherwise noted.) ON-RESIST ANCE vs. V COM V COM (V) R ON ( Ω ) MAX4888A/89A toc01 -0.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches _______________________________________________________________________________________ 5 T ypical Operating Characteristics (continued) (T A = +25°C, unless otherwise noted.) EYE DIAGRAM (V+ = 3.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches 6 _______________________________________________________________________________________ Pin Description PIN MAX4888A MAX4889A NAME FUNCTION 1, 10, 12, 14, 20, 25, 27 1, 4, 10, 14, 17, 19, 21, 39, 41 GND Ground 2 9 SEL Digital Control Input 3, 9 — N.
MAX4888A/MAX4889A t r < 5ns t f < 5ns 50% V IL LOGIC INPUT V N_ = V NO_ OR V NC_ R L COM_ GND SEL C L INCLUDES FIXTURE AND STRAY CAPACITANCE. V OUT = V N_ ( R L ) R L + R ON V N_ V IH t OFF 0V NO_ OR N C _ 0.9 x V 0UT 0.9 x V OUT t ON V OUT SWITCH OUTPUT LOGIC INPUT V+ C L 3.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches 8 _______________________________________________________________________________________ T est Circuits/Timing Diagrams (continued) IN+ V+ 3.3V IN- OUT+ OUT - V IN+ V IN- V OUT+ V OUT - NO_+ OR NC_+ NO_- OR NC_- SEL COM _+ COM _- 0V 1.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches _______________________________________________________________________________________ 9 Detailed Description The MAX4888A/MAX4889A high-speed passive switch- es r oute PCIe data between two possible destinations.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches 10 ______________________________________________________________________________________ Functional Diagrams/T ruth T able MAX4888A GND SEL 0 1.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches ______________________________________________________________________________________ 11 Applications Information PCIe Switching The MAX4888A/MAX4889A primary applications are aimed at reallocating PCIe lanes (see Figure 5).
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches 12 ______________________________________________________________________________________ T ypical Application Circuit MAX4889A COM1+ COM1- COM2.
MAX4888A/MAX4889A Package Infor mation (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages .) 5.0Gbps PCI Expr ess Passive Switches ______________________________________________________________________________________ 13 28L THIN QFN.
MAX4888A/MAX4889A 5.0Gbps PCI Expr ess Passive Switches Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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If you have not bought Maxim MAX4888A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Maxim MAX4888A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Maxim MAX4888A you will learn all the available features of the product, as well as information on its operation. The information that you get Maxim MAX4888A will certainly help you make a decision on the purchase.
If you already are a holder of Maxim MAX4888A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Maxim MAX4888A.
However, one of the most important roles played by the user manual is to help in solving problems with Maxim MAX4888A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Maxim MAX4888A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
