High-Speed Analog Switch for Gigabit Ethernet Applications that Switch the Signals from Two Interface Transformers and Connect Them to a Single Ethernet Controller
The MAX4927 meets the needs of high-speed differential switching, including that of Gigabit Ethernet (10/100/1000) Base-T switching as well as LVDS and LVPECL switching. The MAX4927 provides enhanced ESD protection up to ±15kV and excellent high-frequency response, making the device especially useful for interfaces that must go to an outside connection.
The MAX4927 offers extremely low capacitance (CON), as well as low on-resistance (RON), for low-insertion loss and very wide bandwidth. In addition to the four pairs of DPDT switches, the MAX4927 provides LED switching for laptop computer/docking station use.
The MAX4927 is pin-to-pin equivalent to the PI3L500-A and STMUX1000L. The MAX4927 can replace either device in those applications, improving ESD protection and eliminating external ESD components. The MAX4927 is available in a space-saving 56-pin TQFN package and operates over the extended -40°C to
+85°C temperature range.
Key Features
Applications/Uses
ESD Protection
±15kV–IEC 61000-4-2 Air-Gap Discharge
±8kV–IEC 61000-4-2 Contact Discharge
±15kV–Human Body Model
Single +3.0V to +3.6V Power-Supply Voltage
Low 4Ω (typ), 6.5Ω (max) On-Resistance (RON)
Ultra-Low 8pF (typ) On-Capacitance (CON)
-23dB Return Loss (100MHz)
-3dB Bandwidth: 650MHz
Optimized Pin Out for Easy Transformer and PHY Interface
Built-In LED Switches for Switching Indicators to Docking Station
Low 450µA (max) Quiescent Current
Bidirectional 8 to 16 Multiplexer/Demultiplexer
Standard Pin Out, Matching the PI3L500-A and STMUX1000L
Space-Saving Lead-Free Package
56-Pin, 5mm x 11mm, TQFN Package
Board-Level Redundancy Protection
LVDS and LVPECL Switching
Notebooks and Docking Stations
Servers and Routers with Ethernet Interfaces
SONET/SDH Signal Routing
T3/E3 Redundancy Protection
Key Specifications: Switches and Multiplexers (Low Voltage)
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-2 of 2
MAX4927
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Status
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX4927ETN+
Active
TQFN;56 pin;56.6 mm²
Outline Drawing: 21-0187 (PDF)
Land Pattern: 90-0087 (PDF)
Use pkgcode/variation: T56511+1*
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