MAX4928A Maxim, MAX4928A Datasheet
MAX4928A
Available stocks
Related parts for MAX4928A
MAX4928A Summary of contents
Page 1
... PCI Express (PCIe) data and/or DisplayPort™ signals between two possible destinations in desktop or laptop PCs. The MAX4928A is intended to be used with the ATX form factor desktop PCs, while the MAX4928B is expected to be used in the BTX form factor. The MAX4928A/MAX4928B are hex double-pole/dou- ble-throw (6 x DPDT) switches ...
Page 2
... For detailed information on package thermal considerations, see www.maxim-ic.com/thermal-tutorial. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
Page 3
DisplayPort/PCIe Passive Switches ELECTRICAL CHARACTERISTICS (continued +3.3V ±10 MIN MAX noted.) (Note 3) PARAMETER D_ or TX_/ I HPD_ or RX1_/ AUX_ or RX0_ Off-Leakage I Current I I IN_/X_/OUT_ On-Leakage Current ...
Page 4
... Note 4: Δ (MAX) ON (MIN) Note 5: Guaranteed by design. Not production tested. Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. 4 _______________________________________________________________________________________ , unless otherwise noted. Typical values are at V SYMBOL CONDITIONS BR ...
Page 5
DisplayPort/PCIe Passive Switches (T = +25°C, unless otherwise noted.) A ON-RESISTANCE vs IN_ X_ OUT_ 10 3.3V DD 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 -0.1 0.1 0.3 0.5 0.7 ...
Page 6
... DisplayPort/PCIe Passive Switches MAX4928A/MAX4928B +3. IN_, X_ TX_, OR OUT_ HPD_ RX1_, AUX_ OR RX0_ SEL LOGIC GND LE INPUT SEL C INCLUDES FIXTURE AND STRAY CAPACITANCE OUT TX_ HPD_ V LOGIC IH INPUT LOGIC IH INPUT ...
Page 7
... OUT+ - DIFFERENTIAL CROSSTALK = 20log IN+ +3.3V 0.1μF NETWORK ANALYZER V DD PORT 1 IN_+ 50Ω V SEL IN+ X_+ LE OUT_+ PORT 2 D_+ IN_- 50Ω V MAX4928A IN- X_- MAX4928B D_- OUT_- HPD_+ PORT 3 TX_+ 50Ω V HPD_- OUT+ RX1_+ RX0_+ AUX_+ PORT 4 TX_- 50Ω V OUT- AUX_- RX1_- RX0_- GND DIFFERENTIAL OFF-ISOLATION ...
Page 8
... DisplayPort/PCIe Passive Switches PIN MAX4928A MAX4928B 1, 11, 16, 20, 21, 1, 11, 16, 20, 21, 28, 29, 35, 48, 28, 29, 35, 48, 49 17, 22, 27, 34, 6, 17, 22, 27, 34, 50 ...
Page 9
... Diagrams/Truth Table . Drive SEL rail-to-rail to minimize power consumption. Latch Control Input (LE) The MAX4928A/MAX4928B provide a single digital con- trol input (LE) to latch the signal paths between the IN_ and D_/TX_, X_ and HPD_/RX1_, and OUT_ and AUX_/RX0_ channels. When LE is driven high, the switches are held in their previous state, regardless of the input signal to SEL ...
Page 10
... IN1- IN2+ IN2- IN_ TO TX_, IN_ TO DO_ HPD_, IN3+ OUT_ TO AUX_ NO CHANGE NO CHANGE IN3- ON OFF OFF OUT+ OUT- SEL MAX4928A MAX4928B TX0+ TX0- D0+ D0- TX1+ TX1- D1+ D1- TX2+ TX2- D2+ D2- TX3+ TX3- D3+ D3- RX1+ RX1- HPD1 HPD2 RX0+ ...
Page 11
... DisplayPort/PCIe Passive Switches MAX4928A MAX4928B GRAPHICS AND MEMORY CONTROLLER HUB IN0+ PCIe BUFF 1 IN0- IN1+ PCIe BUFF 2 IN1- IN2+ PCIe BUFF 3 IN2- IN3+ PCIe BUFF 4 IN3- X+ PCIe IN X- OUT+ AUX OUT- SEL CHANNEL SELECT LE GND SUPPLY VOLTAGE ______________________________________________________________________________________ ...
Page 12
... DisplayPort/PCIe Passive Switches For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 56 TQFN-EP 12 ______________________________________________________________________________________ Package Information PACKAGE CODE T56511-1 DOCUMENT NO. 21-0187 ...
Page 13
... Changed functional diagram and limits 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © ...