PERICOM PI3L510ZFE

PI3L510
3.3V, 4-Channel, 2:1, Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Features
Description
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The PI3L510 is a 8- to 4-Channel multiplexer/demultiplexer LAN
Switch with Hi-Z outputs. Industry leading advantages include a
propagation delay of less than 250ps, resulting from its low channel
resistance and I/O capacitance.
RON is 4Ω (typical)
Low bit-to-bit skew: 200ps
Low Crosstalk: –27dB @ 250 MHz
Near-Zero propagation delay: 250ps
Switching speed: 9ns
Channel On Capacitance: 10pF (typical)
Live Insertion Capable
Status Indicator LEDs switched with Ethernet Pairs
VCC Operating Range: +3.0V to +3.6V
>3kV ESD protection (human body model
>350 MHz bandwidth (or data frequency)
Packaging (Pb-free & Green available):
– 36-contact TQFN (ZF)
The device multiplexes differential outputs from a Fast Ethernet
transceiver (PHY) device to one of two corresponding B1 or B2
outputs. The switch is bidirectional and offers little or no attenuation
of the high-speed signals at the outputs. It is designed for low bit-tobit skew, high channel-to-channel noise isolation and is compatible
with various standards, such as 10/100 Base-T (Ethernet).
Generally, this part can be used to replace mechanical relays in
low-voltage LAN applications that interface a physical layer over
CAT 5 or CAT 6 unshielded twisted pair cable through an isolation
transformer.
Applications
• Dual Physical Layer Device sharing to one interface
connector
• Routes signals for 10/100 Mbit Ethernet
2LED2
VCC
GND
1B1
2LED1
A1
GND
0B1
LED2
A0
GND
Pin Description
VCC
Block Diagram
36
35
34
33
32
31
30
29
A2
2B1
GND
3
26
1B1
A2
4
25
A3
3B1
0B2
A3
5
24
1B2
2B2
GND
6
23
GND
SEL
7
22
2B1
VCC
8
21
3B1
LED0
9
20
2B2
LED1
10
19
3B2
LEDz
zLED1
zLED2
11
12
13
14
15
16
17
18
GND
3B2
VCC
0B1
1LED2
27
GND
VCC
2
0LED2
28
A1
1LED1
1
1B2
0LED1
A0
GND
0B2
SEL
07-0077
1
PS8720C
03/26/07
PI3L510
3.3V, 4-Channel, 2:1, Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Pin Description
Pin Name
AX
X BY
LEDZ
ZLEDY
Truth Table
Description
SEL
Function
Demux Inputs
L
AX to XB1; LEDZ to ZLED1
Mux Inputs
H
AX to XB2; LEDZ to ZLED2
LED Demux Inputs
LED Mux Inputs
GND
Ground
VDD
Power
SEL
Select
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ......................................... –65°C to +150°C
Supply Voltage to Ground Potential
............. –0.5V to +4.0V
DC Input Voltage ................................................. –0.5V to +5.5V
DC Output Current............................................................ 120mA
Power Dissipation ................................................................ 0.5W
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other
conditions above those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
DC Electrical Characteristics for 10/100 Base-T Ethernet Switching over Operating Range
(TA = –40°C to +85°C, VCC = 3.3V ±10%)
Description
Test Conditions(1)
VIH
Input HIGH Voltage
Guaranteed HIGH level (Control Pins)
2.0
VIL
Input LOW Voltage
Guaranteed LOW level (Control Pins)
–0.5
VIK
Clamp Diode Voltage
VCC = Max., IIN = –18mA
IIH
Input HIGH Current
VCC = Max., VIN = VCC
±5
IIL
Input LOW Current
VCC = Max., VIN = GND
±5
RON
Switch On-Resistance(3)
VCC = Min., 1.25V ≤ VIN ≤ VCC.
IIN = –10mA to –30mA
4.0
RFLAT(ON)
On-Resistance Flatness(4)
VCC = Min., VIN @ 1.25V and VCC,
IIN = –10mA to –30mA
0.5
Paramenter
∆RON
On-Resistance match from center VCC = Min., 1.25V ≤ VIN ≤ VCC,
ports to any other port(4)
IIN = –10mA to –30mA
Min.
Typ.(2)
Max. Units
0.8
–0.7
0.4
V
–1.2
μA
6.5
Ω
1.0
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading.
3. Measured by the voltage drop between AN and BN pins at indicated current through the switch. ON resistance is determined by the lower of the
voltages on the two (AN & BN) pins.
4. This parameter is determined by device characterization but is not production tested.
07-0077
2
PS8720c
03/26/07
PI3L510
3.3V, 4-Channel, 2:1, Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Capacitance (TA = 25°C, f = 1MHz)
Parameters(1)
Description
CIN
Input Capacitance
COFF(B1, B2)
Port B Capacitance, Switch OFF
CON(A/B)
A/B Capacitance, Switch ON
Test Conditions
VIN = 0V
Typ.
Max.
2.0
3.0
4.0
6.0
10.0
11.0
Units
pF
Notes:
1. This parameter is determined by device characterization but is not production tested.
Power Supply Characteristics
Parameters
(3)
ICC
Test Conditions(1)
Description
Quiescent Power Supply Current
Min.
VCC = Max., VIN = GND or VCC
Typ.(2)
Max.
Units
0.5
3.5
mA
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C,
Parameter
(1)
VCC = 3.3V ±10%, GND = 0V)
Min.
Typ.(2)
Max.
Units
Description
Test Conditions
Crosstalk
RL = 100Ω, f = 250 MHz
–27
dB
OIRR
OFF Isolation
RL = 100Ω, f = 250 MHz
–32
dB
BW
Bandwidth –3dB
RL = 100Ω
350
MHz
XTALK
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type
2. Guaranteed by design.
Switching Characteristics
Paramenter
tPD
Description
Propagation
Min.
Delay(2,3)
tPZH, tPZL
Line Enable Time - SEL to AN, BN
tPHZ, tPLZ
Line Disable Time - SEL to AN, BN
Typ.(1)
Max.
Units
0.25
port(2)
tSK(o)
Output Skew between center port to any other
tSK(p)
Skew between opposite transitions of the same output
(tPHL - tPLH) (2)
0.5
15.0
0.5
9.0
0.1
0.2
0.1
0.2
ns
Notes:
1. Guaranteed by design.
2. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load capacitance. The
time constant for the switch alone is of the order of 0.25ns for 10pF load. Since this time constant is much smaller than the rise/fall times of
typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is
determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side.
07-0077
3
PS8720c
03/26/07
PI3L510
3.3V, 4-Channel, 2:1, Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Test Circuit for Electrical Characteristics(1)
6.0V
VCC
200-ohm
Pulse
Generator
VOUT
VIN
D.U.T
10pF
CL
RT
200-ohm
Notes:
• CL = Load capacitance: includes jig and probe capacitance.
• RT = Termination resistance should be equal to ZOUT of the Pulse Generator
Switch Positions
Test
Switch
tPLZ, tPZL (output on I-side)
6.0V
tPHZ, tPZH (output on I-side)
GND
Prop Delay
Open
Test Circuit for Dynamic Electrical Characteristics
HP4195A
R1
S1
VCC
T1
D.U.T.
HP11667A
10pF
07-0077
4
50-ohm
PS8720c
03/26/07
PI3L510
3.3V, 4-Channel, 2:1, Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Switching Waveforms
2.5V
SEL
2.5V
Input
1.25V
1.25V
3.5V
0V
2.5V
1.5V
tPLH
Output
tPHL
tPZL
tPLZ
VDD/2
VOH
Output
2.5V
tPHZ
tPZH
2.5V
VOH
VOL +0.3V
VOL
VDD/2
VOH –0.3V
VOL
VOH
VOL
Output
Voltage Waveforms Enable and Disable Times
Voltage Waveforms Propagation Delay Times
3.5V
2.5V
Data In
1.5V
tPLHX
3.5V
tPHLX
2.5V
VOH
Input
1.5V
2.5V
Data Out
at Channel X
I
tPLH
tPHL
VOL
VOH
tSK(o)
VOH
2.5V
Output
VOL
2.5V
Data Out
at Channel Y
tSK(p) = I tPHL – tPLH I
VOL
tPLHy
tPHLy
tSK(o) = I tPLHy – tPLHx I or I tPHLy – tPHLx I
Pulse Skew - tSK(p)
Output Skew - tSK(o)
•
•
•
•
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.
All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50-ohm, tR ≤ 2.5ns, tF ≤ 2.5ns.
The outputs are measured one at a time with one transition per measurement.
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, the output enables
or select pins may be driven low to 0V and high to 3.6V. Driving the control pin(s) Rail-to-Rail® minimizes power consumption.
Power-Supply Sequencing
Proper power-supply sequencing is advised for all CMOS devices. It is recommended to always apply VCC before applying signals to
the input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
07-0077
5
PS8720c
03/26/07
PI3L510
3.3V, 4-Channel, 2:1, Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Packaging Mechanical: 36-Contact TQFN (ZF)
Ordering Information
Ordering Number
PI3L510ZFE
Package Code
Package Description
ZF
Pb-free & Green, 36-contact TQFN
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free & Green
• Adding an X suffix = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
07-0077
6
PS8720c
03/26/07