Datasheet

1
FEATURES
SEL
2B
1
2B
2
3B
2
4B
2
5B
2
4B
1
5B
1
3B
1
1
2
3
4
5
6
7
8
9
27
26
25
24
23
22
21
20
19
1LED
2
7
B
2
6B
2
6B
1
1LED
1
LED
1
GND
A7
7B
1
A3
LED
0
0LED
1
A4
A5
A6
A1
0LED
2
A2
10
11
12
13
14
15
16
17
18
36
35
34
33
32
3
1
30
29
28
A0
0B
2
V
CC
LED
2
2
LED
1
2
LED
2
0B
1
1B
1
1B
2
APPLICATIONS
DESCRIPTION/ORDERING INFORMATION
TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
SCDS251 MARCH 2008
www.ti.com
RHH PACKAGE
Wide Bandwidth (BW = 1100 MHz Typ)
(TOP VIEW)
Low Crosstalk (X
TALK
= 37 dB Typ)
Low Bit-to-Bit Skew (t
sk(o)
= 100 ps Max)
Low and Flat ON-State Resistance
(r
ON
= 4 Typ, r
ON(flat)
= 0.5 Typ)
Low Input/Output Capacitance
(C
ON
= 8 pF Typ)
Rail-to-Rail Switching on Data I/O Ports
(0 to 5 V)
V
CC
Operating Range From 3 V to 3.6 V
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Performance Tested Per JESD 22
2000-V Human-Body Model
(A114-B, Class II)
PIN DESCRIPTION
1000-V Charged-Device Model (C101)
NAME DESCRIPTION
A
n
Data I/O
nB
m
Data I/O
10/100/1000 Base-T Signal Switching
SEL Select input
Differential (LVDS, LVPECL) Signal Switching
LED
x
LED I/O port
Audio/Video Switching
XLED
m
LED I/O port
Hub and Router Signal Switching
The TS3L4892 is a 16-bit to 8-bit multiplexer/demultiplexer LAN switch with a single select (SEL) input. SEL
controls the data path of the multiplexer/demultiplexer. The device provides additional I/Os for switching status
indicating LED signals.
The device provides a low and flat ON-state resistance (r
ON
) and an excellent ON-state resistance match. Low
input/output capacitance, high bandwidth, low skew, and low crosstalk among channels make this device suitable
for various LAN applications, such as 10/100/1000 Base-T.
This device can be used to replace mechanical relays in LAN applications. It also can be used to route signals
from a 10/100 Base-T ethernet transceiver to the RJ-45 LAN connectors in laptops or in docking stations.
ORDERING INFORMATION
T
A
PACKAGE
(1) (2)
ORDERABLE PART NUMBER TOP-SIDE MARKING
40 ° C to 85 ° C QFN RHH Tape and reel TS3L4892RHHR TK4892
(1) Package drawings, standard packing quantities, and symbolization are available at www.ti.com/packaging .
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com .
FUNCTION TABLE
INPUT INPUT/OUTPUT
FUNCTION
SEL A
n
L nB
1
A
n
= nB
1
, LED
x
= XLED
1
H nB
2
A
n
= nB
2
, LED
x
= XLED
2
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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