TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
FEATURES
1
28
29
31
30
32
34
33
A0
VCC
LED2
2LED1
2LED2
0B1
1B1
0B2
1B2
36
35
20
9
19
18
21
8
17
22
7
16
23
6
15
24
5
14
25
4
12
3
SEL
2B1
3B1
2B2
3B2
4B1
5B1
4B2
5B2
PIN DESCRIPTION
NAME
APPLICATIONS
•
•
•
•
26
6B1
•
27
2
13
•
•
1
11
•
A1
A2
A3
LED0
0LED1
0LED2
A4
A5
A6
10
•
RHH PACKAGE
(TOP VIEW)
Wide Bandwidth (BW = 1100 MHz Typ)
Low Crosstalk (XTALK = –37 dB Typ)
Low Bit-to-Bit Skew (tsk(o) = 100 ps Max)
Low and Flat ON-State Resistance
(rON = 4 Ω Typ, rON(flat) = 0.5 Ω Typ)
Low Input/Output Capacitance
(CON = 8 pF Typ)
Rail-to-Rail Switching on Data I/O Ports
(0 to 5 V)
VCC 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)
– 1000-V Charged-Device Model (C101)
A7
GND
LED1
1LED1
1LED2
7B2
6B2
7B1
•
•
•
•
10/100/1000 Base-T Signal Switching
Differential (LVDS, LVPECL) Signal Switching
Audio/Video Switching
Hub and Router Signal Switching
DESCRIPTION
An
Data I/O
nBm
Data I/O
SEL
Select input
LEDx
LED I/O port
XLEDm
LED I/O port
DESCRIPTION/ORDERING INFORMATION
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 (rON) 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
TA
–40°C to 85°C
(1)
(2)
PACKAGE
QFN – RHH
(1) (2)
ORDERABLE PART NUMBER
Tape and reel
TS3L4892RHHR
TOP-SIDE MARKING
TK4892
Package drawings, standard packing quantities, and symbolization are available at www.ti.com/packaging.
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
SEL
INPUT/OUTPUT
An
FUNCTION
L
nB1
An = nB1, LEDx = XLED1
H
nB2
An = nB2, LEDx = XLED2
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated
TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
LOGIC DIAGRAM (POSITIVE LOGIC)
36
31
1
30
0B1
A0
1B1
A1
29
0B2
28
1B2
2
26
3
25
2B1
A2
3B1
A3
24
2B2
23
3B2
7
22
4B1
A4
8
21
5B1
A5
20
4B2
19
5B2
9
18
10
17
6B1
A6
7B1
A7
16
6B2
15
7B2
4
5
LED0
6
LED1
12
13
14
LED2
34
33
32
SEL
2
0LED1
0LED2
1LED1
1LED2
2LED1
2LED2
27
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
ABSOLUTE MAXIMUM RATINGS (1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
VCC
Supply voltage range
–0.5
4.6
V
VIN
Control input voltage range (2) (3)
–0.5
7
V
(2) (3) (4)
VI/O
Switch I/O voltage range
IIK
Control input clamp current
VIN < 0
–50
mA
II/OK
I/O port clamp current
VI/O < 0
–50
mA
±128
mA
II/O
ON-state switch current
–0.5
(5)
7
UNIT
V
Continuous current through VDD or GND
±100
mA
θJA
Package thermal impedance (6)
31.8
°C/W
Tstg
Storage temperature range
150
°C
(1)
(2)
(3)
(4)
(5)
(6)
–65
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 under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltages are with respect to ground, unless otherwise specified.
The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
VI and VO are used to denote specific conditions for VI/O.
II and IO are used to denote specific conditions for II/O.
The package thermal impedance is calculated in accordance with JESD 51-7.
RECOMMENDED OPERATING CONDITIONS (1)
MIN
MAX
VCC
Supply voltage
3
3.6
V
VIH
High-level control input voltage (SEL)
2
5.5
V
VIL
Low-level control input voltage (SEL)
0
0.8
V
VI
Input voltage (SEL)
0
5.5
V
VI/O
Input/output voltage
0
VCC
V
TA
Operating free-air temperature
–40
85
°C
(1)
UNIT
All unused control inputs of the device must be held at VDD or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
ELECTRICAL CHARACTERISTICS
for 1000 Base-T Ethernet switching over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V
(unless otherwise noted)
TEST CONDITIONS (1)
PARAMETER
VIK
SEL
VCC = 3.6 V,
IIN = –18 mA
IIH
SEL
VCC = 3.6 V,
IIL
SEL
ICC
MIN
TYP (2) MAX
–0.7
UNIT
–1.2
V
VIN = VCC
±1
µA
VCC = 3.6 V,
VIN = GND
±1
µA
250
500
µA
2
2.5
pF
2.5
4
pF
VCC = 3.6 V,
II/O = 0,
CIN
SEL
f = 1 M Hz,
VIN = 0
COFF
B port
VI = 0,
f = 1 MHz,
Outputs open,
Switch OFF
CON
VI = 0,
f = 1 MHz,
Outputs open,
Switch ON
8
9
pF
rON
VCC = 3 V,
1.5 V ≤ VI ≤ VCC,
IO = –40 mA
4
6
Ω
rON(flat) (3)
VCC = 3 V,
VI = 1.5 V and VCC,
IO = –40 mA
0.5
VCC = 3 V,
1.5 V ≤ VI ≤ VCC,
IO = –40 mA
0.4
ΔrON
(1)
(2)
(3)
(4)
(4)
Switch ON or OFF
Ω
1
Ω
TYP (2)
MAX
UNIT
–0.7
–1.2
V
±1
µA
VI, VO, II, and IO refer to I/O pins. VIN refers to the control inputs.
All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C.
rON(flat) is the difference of rON in a given channel at specified voltages.
ΔrON is the difference of rON from center (A4, A5) ports to any other port.
ELECTRICAL CHARACTERISTICS
for 10/100 Base-T Ethernet switching over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V
(unless otherwise noted)
TEST CONDITIONS (1)
PARAMETER
VIK
SEL
VCC = 3.6 V,
IIN = –18 mA
IIH
SEL
VCC = 3.6 V,
VIN = VCC
IIL
SEL
VCC = 3.6 V,
VIN = GND
VCC = 3.6 V,
II/O = 0,
ICC
MIN
Switch ON or OFF
±1
µA
250
500
µA
2
2.5
pF
2.5
4
pF
CIN
SEL
f = 1 MHz,
VIN = 0
COFF
B port
VI = 0,
f = 1 MHz,
Outputs open,
Switch OFF
CON
VI = 0,
f = 1 MHz,
Outputs open,
Switch ON
rON
VCC = 3 V,
1.25 V ≤ VI ≤ VCC,
IO = –10 mA to –30 mA
4
rON(flat) (3)
VCC = 3 V,
VI = 1.25 V and VCC,
IO = –10 mA to –30 mA
0.5
ΔrON (4)
VCC = 3 V,
1.25 V ≤ VI ≤ VCC,
IO = –10 mA to –30 mA
0.4
(1)
(2)
(3)
(4)
4
8
pF
6
Ω
Ω
1
Ω
VI, VO, II, and IO refer to I/O pins. VIN refers to the control inputs.
All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C.
rON(flat) is the difference of rON in a given channel at specified voltages.
ΔrON is the difference of rON from center (A4, A5) ports to any other port.
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V, RL = 200 Ω, CL = 10 pF
(unless otherwise noted) (see Figures 4 and 5)
FROM
(INPUT)
TO
(OUTPUT)
A or B
B or A
SEL
A or B
0.5
tPHZ, tPLZ
SEL
A or B
0.9
tsk(o) (3)
A or B
B or A
PARAMETER
tpd
(2)
tPZH, tPZL
MIN
TYP (1)
40
tsk(p) (4)
(1)
(2)
(3)
(4)
MAX
UNIT
ps
15
ns
9
ns
50
100
ps
50
150
ps
All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C.
The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and the specified load
capacitance when driven by an ideal voltage source (zero output impedance).
Output skew between center port (A4 to A5) to any other port
Skew between opposite transitions of the same output in a given device |tPHL – tPLH|
DYNAMIC CHARACTERISTICS
over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted)
PARAMETER
(1)
TYP (1)
TEST CONDITIONS
XTALK
RL = 100 Ω,
f = 250 MHz,
See Figure 8
OIRR
RL = 100 Ω,
f = 250 MHz,
See Figure 9
BW
RL = 100 Ω,
See Figure 7
–37
UNIT
dB
–37
dB
1100
MHz
All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C.
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
OPERATING CHARACTERISTICS
0
0
−2
Attenuation (dB)
−20
Gain (dB)
−4
−6
−8
−40
−60
−80
−10
−12
0.1
1
10
100
1000
10,000
−100
0.1
1
Frequency (MHz)
Figure 1. Gain vs Frequency
Figure 2. OFF Isolation vs Frequency
5
−20
4
ron (W)
Attenuation (dB)
10,000
6
0
−40
−60
−100
0.1
3
2
−80
1
0
1
10
100
Frequency (MHz)
1000
10,000
0
1
2
3
4
5
6
VCOM (V)
Figure 3. Crosstalk vs Frequency
6
1000
10
100
Frequency (MHz)
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Figure 4. rON (Ω) vs Vcom (V)
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TS3L4892
TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
PARAMETER MEASUREMENT INFORMATION
(Enable and Disable Times)
VCC
Input Generator
VIN
50 Ω
50 Ω
VG1
TEST CIRCUIT
DUT
2 × VCC
Input Generator
VI
S1
RL
VO
50 Ω
CL
(see Note A)
50 Ω
VG2
RL
TEST
VCC
S1
RL
VI
CL
V∆
tPLZ/tPZL
3.3 V ± 0.3 V
2 × VCC
200 Ω
GND
10 pF
0.3 V
tPHZ/tPZH
3.3 V ± 0.3 V
GND
200 Ω
VCC
10 pF
0.3 V
VIN
VO
2.5 V
Output Control
(VIN)
1.25 V
1.25 V
0V
Output
Waveform 1
S1 at 2 y VCC
(see Note B)
tPZL
tPLZ
VOH
VCC/2
VOL + 0.3 V
tPZH
VO
Open
GND
Output
Waveform 2
S1 at GND
(see Note B)
VOL
tPHZ
VCC/2
VOH − 0.3 V
VOH
VOL
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
Figure 5. Test Circuit and Voltage Waveforms
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
PARAMETER MEASUREMENT INFORMATION
(Skew)
VCC
Input Generator
VIN
50 Ω
50 Ω
VG1
TEST CIRCUIT
DUT
2 × VCC
Input Generator
50 Ω
Open
RL
TEST
VCC
S1
RL
Vin
CL
tsk(o)
3.3 V ± 0.3 V
Open
200 Ω
VCC or GND
10 pF
tsk(p)
3.3 V ± 0.3 V
Open
200 Ω
VCC or GND
10 pF
3.5 V
2.5 V
1.5 V
Data In at
Ax or Ay
tPHLx
VOH
(VOH + VOL)/2
VOL
Data Out at
XB1 or XB2
tsk(o)
VO
CL
(see Note A)
50 Ω
tPLHx
VO
S1
GND
VG2
VI
RL
VO
VI
3.5 V
VOH
(VOH + VOL)/2
VOL
Data Out at
YB1 or YB2
tPLHy
2.5 V
1.5 V
Input
tsk(o)
tPHLy
tPLH
VOH
(VOH + VOL)/2
VOL
Output
tsk(p) = |tPHL − tPLH|
tsk(o) = |tPLHy − tPLHx| or |tPHLy − tPHLx|
VOLTAGE WAVEFORMS
OUTPUT SKEW (tsk(o))
tPHL
VOLTAGE WAVEFORMS
PULSE SKEW [tsk(p)]
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time, with one transition per measurement.
Figure 6. Test Circuit and Voltage Waveforms
8
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
PARAMETER MEASUREMENT INFORMATION
EXT TRIGGER
BIAS
VBIAS
Network Analyzer
(HP8753ES)
P1
P2
VCC
A0
SEL
0B1
DUT
CL = 10 pF
(see Note A)
VSEL
A.
CL includes probe and jig capacitance.
Figure 7. Test Circuit for Frequency Response (BW)
Frequency response is measured at the output of the ON channel. For example, when VSEL = 0 and A0 is the
input, the output is measured at 0B1. All unused analog I/O ports are left open.
HP8753ES Setup
Average = 4
RBW = 3 kHz
VBIAS = 0.35 V
ST = 2 s
P1 = 0 dBM
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
PARAMETER MEASUREMENT INFORMATION (continued)
EXT TRIGGER
BIAS
VBIAS
Network Analyzer
(HP8753ES)
P1
P2
VCC
A0
0B1
RL = 100 Ω
A1
1B1
0B2
DUT
A2
1B2
2B1
RL = 100 Ω
A3
3B1
2B2
3B2
SEL
VSEL
A.
CL includes probe and jig capacitance.
B.
A 50-Ω termination resistor is needed to match the loading of the network analyzer.
Figure 8. Test Circuit for Crosstalk (XTALK)
Crosstalk is measured at the output of the nonadjacent ON channel. For example, when VSEL = 0 and A0 is the
input, the output is measured at 1B1. All unused analog input (A) ports are connected to GND, and output (B)
ports are connected to GND through 50-Ω pulldown resistors.
HP8753ES Setup
Average = 4
RBW = 3 kHz
VBIAS = 0.35 V
ST = 2 s
P1 = 0 dBM
10
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TS3L4892
16-BIT TO 8-BIT SPDT GIGABIT LAN SWITCH
WITH LED SWITCH
www.ti.com
SCDS251 – MARCH 2008
PARAMETER MEASUREMENT INFORMATION (continued)
EXT TRIGGER
BIAS
VBIAS
Network Analyzer
(HP8753ES)
P1
P2
VCC
A0
0B1
RL = 100 Ω
A1
1B1
DUT
0B2
1B2
SEL
VSEL
A.
CL includes probe and jig capacitance.
B.
A 50-Ω termination resistor is needed to match the loading of the network analyzer.
Figure 9. Test Circuit for Off Isolation (OIRR)
OFF isolation is measured at the output of the OFF channel. For example, when VSEL = VCC and A0 is the input,
the output is measured at 0B2. All unused analog input (A) ports are left open, and output (B) ports are
connected to GND through 50-Ω pulldown resistors.
HP8753ES Setup
Average = 4
RBW = 3 kHz
VBIAS = 0.35 V
ST = 2 s
P1 = 0 dBM
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11
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
TS3L4892RHHR
ACTIVE
VQFN
RHH
36
2500
RoHS & Green
NIPDAU
Level-3-260C-168 HR
-40 to 85
TK4892
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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