MAX4998/MAX14998 19-5033 Rev 1 8/10 Two-Lane and Four-Lane DisplayPort Passive Switches with Separate AUX/HPD Control General Description Features The MAX4998/MAX14998 high-speed passive switches S Single 3.3V Power-Supply Voltage route DisplayPort between two possible destinations S 8.5GHz (typ) Bandwidth or vice versa in laptops or desktop PCs. The MAX4998/ S Support 1.6/5.4Gbps DisplayPort Signals MAX14998 are intended to be used where ultra-high- Handles DisplayPort v1.1 Signals speed performance and minimal input capacitance is Handles DisplayPort v1.2 Signals required. S Excellent Return Loss -13dB at 2.7GHz The MAX4998 has three double-pole/double-throw S Independent High Frequency: AUX Select (DPDT) switches and one single-pole/double-throw (SPDT) switch. Two DPDT switches are for high-frequen- S Designed for AC-Coupled Circuits cy switching, one DPDT switch is for AUX, and the one S Pass Throughs Are Maintained SPDT switch is for HPD. The two high-frequency switches S Low 850A (max) Supply Current are selected by SEL1, and the AUX and HPD are selected by SEL2. This part is suitable for two-lane DisplayPort S Small Packages switching. 3.5mm x 5.5mm, 28-Pin TQFN Package with Exposed Pad The MAX14998 has six double-pole/double-throw (DPDT) 3.5mm x 9mm, 42-Pin TQFN Package with switches. Four DPDT switches are for high-frequency Exposed Pad switching, and two DPDT switches are for AUX and HPD. The four high-frequency switches are selected by SEL1, S Flow-Through Layout for Easy Board Layout and the AUX and HPD are selected by SEL2. This part is S ESD Protection for All I/O Pins: Human Body suitable for four-lane DisplayPort switching. Model (HBM) Q4kV The MAX4998/MAX14998 are fully specified to operate from a single +3.3V (typ) power supply. The MAX4998 Ordering Information is available in a 3.5mm x 5.5mm, 28-pin TQFN package PART TEMP RANGE PIN-PACKAGE with exposed pad, and the MAX14998 is available in a MAX4998ETI+T -40NC to +85NC 28 TQFN-EP* 3.5mm x 9mm, 42-pin TQFN package with exposed pad. Both devices operate over the -40NC to +85NC extended MAX14998ETO+T -40NC to +85NC 42 TQFN-EP* temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Applications *EP = Exposed pad. Notebook PCs Typical Operating Circuit appears at end of data sheet. Desktop PCs DisplayPort is a trademark of Video Electronics Standards Association (VESA). Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLETwo-Lane and Four-Lane DisplayPort Passive Switches with Separate AUX/HPD Control ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) Operating Temperature Range .......................... -40NC to +85NC V ..........................................................................-0.3V to +4V Junction Temperature .....................................................+150NC DD SEL1, SEL2, COM , NO , NC (Note 1) .....-0.3V to +(V + 0.3)V Storage Temperature Range ............................ -65NC to +150NC DD V - V , V - V (Note 1) ..................... 0 to +2V Package Junction-to-Ambient Thermal Resistance (B ) (Note 2) COM NO COM NC JA Continuous Current (COM to NO /NC ) .......................Q70mA 28-Pin TQFN .................................................................35NC/W Peak Current (COM to NO /NC ) 42-Pin TQFN .................................................................29NC/W (pulsed at 1ms, 10% duty cycle) .................................Q70mA Package Junction-to-Case Thermal Resistance (B ) (Note 2) JC Continuous Current (SEL1, SEL2) ...................................Q30mA 28-Pin TQFN ................................................................2.7NC/W Peak Current (SEL1, SEL2) 42-Pin TQFN ...................................................................2NC/W (pulsed at 1ms, 10% duty cycle) .................................Q70mA Lead Temperature (soldering, 10s) ................................+300NC Continuous Power Dissipation (T = +70NC) Soldering Temperature (reflow) ......................................+260NC A 28-Pin TQFN (derate 28.6mW/NC above +70NC) .......2285mW 42-Pin TQFN (derate 34.5mW/NC above +70NC) .......2758mW Note 1: Signals on COM , NO , NC , SEL1, and SEL2 exceeding V or GND are clamped by internal diodes. Limit forward- DD diode current to the maximum current rating. Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four- layer board. For detailed information on package thermal considerations, refer to 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. ELECTRICAL CHARACTERISTICS (V = +3.3V Q10%, T = T to T unless otherwise noted. Typical values are at V = +3.3V, T = +25NC, unless otherwise DD A MIN MAX, DD A noted.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ANALOG SWITCH V , V , (V - COM NO DD Analog Signal Range V V 1.8) NC Voltage Between COM and V - V , COM NO 0 1.8 V NO /NC V - V COM NC I = 15mA COM On-Resistance R 7 I ON V , V = 0V, +1.2V NO NC On-Resistance Match V = +3.0V I = 15mA V , DD COM NO Between Pairs of Same DR 0.1 2 I ON V = 0V (Notes 4, 5) NC Channel On-Resistance Match V = +3.0V I = 15mA V , DD COM NO DR 1.0 4 I ON Between Channels V = 0V (Notes 4, 5) NC V = +3.0V I = 15mA V , DD COM NO On-Resistance Flatness R 0.3 1.5 I FLAT(ON) V = 0V, +1.2V (Notes 5, 6) NC NO or NC Off-Leakage I V = +3.6V V = 0V, +1.2V NO (OFF) DD COM -1 1 FA Current I V or V = +1.2V, 0V NC (OFF) NO NC COM On-Leakage V = +3.6V V = 0V, +1.2V DD COM I -1 1 FA COM (ON) Current V or V = V or unconnected NO NC COM DIGITAL SIGNALS SEL1 and SEL2 to Switch V or V = +1.0V, R = 50I, NO NC L t 45 120 ns ON SEL Turn-On Time C = 100pF (Figure 1) L 2 MAX4998/MAX14998