MAX4892 Maxim, MAX4892 Datasheet
MAX4892
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MAX4892 Summary of contents
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... The MAX4890/MAX4891/MAX4892 switches provide an extremely low capacitance and on-resistance to meet Ethernet insertion and return-loss specifications. The MAX4891/MAX4892 feature one and three built-in LED switches, respectively. The MAX4890/MAX4891/MAX4892 are available in space-saving 32- and 36-lead TQFN packages, significantly reducing the required PC board area. ...
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... Lead Temperature (soldering, 10s) .................................+300°C CONDITIONS +25° -40mA 1.5V ≤ V ≤ MIN A_ = -40mA, 1.5V ≤ 3V, I _LED_ ONLED MAX4891/MAX4892 +25° -40mA, A_ ΔR ON 1.5V ≤ V ≤ MIN (Note 3V -40mA 1.5V, 2. ...
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Base-T Ethernet LAN Switch ELECTRICAL CHARACTERISTICS (continued) (V+ = +3V to +3.6V unless otherwise noted. Typical values are 3.3V MIN MAX PARAMETER SYMBOL Crosstalk V Differential Crosstalk V ...
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Base-T Ethernet LAN Switch (V+ = 3.3V +25°C, unless otherwise noted.) A ON-RESISTANCE vs 4.0 3 3.0V, 3.3V, 3.6V 3.6 3.4 3.2 3.0 0 0.9 1.8 2.7 V (V) A_ LED_ ON-RESISTANCE vs. ...
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Base-T Ethernet LAN Switch (V+ = 3.3V +25°C, unless otherwise noted.) A TURN-ON/-OFF TIME vs. SUPPLY VOLTAGE OFF 3.0 3.2 3.4 3.6 SUPPLY VOLTAGE (V) RISE-/FALL-TIME PROPAGATION DELAY ...
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Base-T Ethernet LAN Switch (V+ = 3.3V +25°C, unless otherwise noted.) A DIFFERENTIAL RETURN LOSS vs. FREQUENCY 0 -10 -20 -30 - 100 FREQUENCY (MHz) SINGLE-ENDED CROSSTALK vs. FREQUENCY 0 -10 -20 -30 -40 -50 ...
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... Base-T Ethernet LAN Switch PIN MAX4890 MAX4891 MAX4892 31, 32 31 7–10 7–10 7–10 — — — 3– — — — 12 — — 13 — — 14 13, 14, 17, 13, 14, 17, 15, 16, 19, 18, 21, 22, ...
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... TRACE ANALYZER 50:100 CB1 Figure 1. Differential Insertion Loss RETURN LOSS MAX4892 36 TQFN A2 2 R16 49.9Ω 3B1 R17 49.9Ω Figure 2. Differential Return Loss 8 _______________________________________________________________________________________ MAX4892 36 TQFN 50Ω PULSE H5007 0B1 TRACE 24-PIN PACKAGE 50Ω 4 3B1 TRACE 0.01μF 50Ω ...
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... The MAX4890/MAX4891/MAX4892 are high-speed ana- log switches targeted for 10/100/1000 Base-T applica- tions typical application, the MAX4890/MAX4891/ MAX4892 switch the signals from two separate inter- face transformers and connect the signals to a single 10/100/1000 Base-T Ethernet PHY (see the Typical Operating Circuit ) ...
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... 50:100 CB5 Line-Card Redundancy (Ethernet T3/E3) Figure 10 shows the MAX4890/MAX4891/MAX4892 in a line-card redundancy configuration. Caution: Do not exceed the absolute maximum ratings. Stresses beyond the listed ratings may cause perma- nent damage to the device. Proper power-supply sequencing is recommended for all CMOS devices. Always apply V+ before applying analog signals, especially if the analog signal is not current limited ...
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... THE MAX4890/MAX4891/MAX4892 SWITCHES ARE FULLY BIDIRECTIONAL. Figure 7. Output Skew ______________________________________________________________________________________ 2.5V 1.25V PLH t OFF 90 _B_ A_ 90% PULSE SKEW = SK(p) THE MAX4890/MAX4891/MAX4892 SWITCHES ARE FULLY BIDIRECTIONAL. 0V Figure 6. Propagation Delay Times 3.0V 2.0V 1.0V 1MΩ t PHLX CHARGE-CURRENT LIMIT RESISTOR V OH 2.0V HIGH- VOLTAGE SOURCE t PHLY ...
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... CURRENT WAVEFORM Figure 9. Human Body Model Current Waveform 12 ______________________________________________________________________________________ ETHERNET PHYs OR T3/E3 LIUs PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) PRIMARY CARD ETHERNET PHYs OR T3/E3 LIUs PROTECTION CARD Figure 10. Typical Application for Line-Card Redundancy MAX4890 MAX4891 MAX4892 PROTECTION SWITCH TRANSFORMER SWITCHING CARD ...
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Base-T Ethernet LAN Switch DOCKING STATION NOTEBOOK TRD0_P A0 TRD0_N A1 TRD1_P A2 TRD1_N A3 ETHERNET PHY/MAC TRD2_P A4 TRD2_N A5 TRD3_P A6 TRD3_N A7 LED_OUT LED_ SEL_DOCK ______________________________________________________________________________________ Typical Operating Circuit CONNECTOR 0B2 1B2 2B2 3B2 4B2 5B2 ...
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Base-T Ethernet LAN Switch SEL 14 ______________________________________________________________________________________ A0 0B1 A1 1B1 0B2 1B2 A2 2B1 A3 3B1 2B2 3B2 4B1 A4 A5 5B1 4B2 5B2 A6 6B1 A7 7B1 6B2 7B2 ...
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... Base-T Ethernet LAN Switch LED0 LED1 LED2 SEL ______________________________________________________________________________________ Functional Diagrams (continued) 0B1 1B1 0B2 1B2 2B1 3B1 2B2 3B2 4B1 5B1 4B2 5B2 6B1 7B1 6B2 7B2 0LED1 0LED2 1LED1 1LED2 2LED1 2LED2 MAX4892 15 ...
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... EXPOSED PAD. CONNECT EP TO GND OR LEAVE UNCONNECTED For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 32 TQFN-EP 36 TQFN-EP 27 SEL 2B1 26 3B1 25 2B2 24 3B2 23 MAX4892 4B1 22 21 5B1 4B2 20 *EP 5B2 19 TQFN Package Information PACKAGE CODE DOCUMENT NO. T-3255-4 21-0140 ...
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... Added exposed pad information 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 ____________________ 17 © ...