MAX4927：1000 Base-T, ±15kV ESD Protection LAN Switch _ BDTIC a Leading Distributor in China

MAX4927：1000 Base-T, ±15kV ESD Protection LAN Switch

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

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

MAX4927: Functional Diagram

Applications/Uses

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

DataSheet

title	Download file
MAX4927 Data Sheet	MAX4927.pdf

Parametrics

Part Number	Protocol	Config.	Channels	V_SUPPLY (Single) (V)	V_SUPPLY (Single) (V)	V_SIGNAL (V)	V_SIGNAL (V)	Dynamic Range (max) (V)	R_ON (Ω)	R_FLAT(ON) (Ω)	Bandwidth (MHz)	I_L(OFF) (nA)	t_ON (ns)	t_OFF (ns)	C_ON (pF)	Package/Pins
Part Number	Protocol	Config.	Channels	min	max	min	max	max	max	typ	Bandwidth (MHz)	max	min	max	C_ON (pF)	Package/Pins
MAX4927	LAN	2-to-1	11	3	3.6	0	3.6	3.6	5.5	0.01	650	1000	50	50	6.5	TQFN/56

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX4927ETN+	Active		TQFN,;56 pin;56.6 mm²	-40°C to +85°C	Lead Free
MAX4927ETN+T	Active		TQFN,;56 pin;56.6 mm²	-40°C to +85°C	Lead Free

MAX4927.pdf MAX4927

MAX4927_cn.pdf MAX4927