PI3L100LE

PI3L100 3.3V, Wide Bandwidth, Quad 2:1 Mux/DeMux LAN Switch Features Description • Replaces Mechanical Relays Pericom Semiconductor’s PI3L100 is a Quad 2:1 multiplexer/ demultiplexer LanSwitch with three-state outputs. This device can be used for switching between various standards, such as 10 Base-T and 100 Base-T. Generally, this part can be used to replace mechanical relays in low voltage LAN applications that have physical layer, unshielded twisted pair media (UTP) with either CAT 3 or CAT 5 grade cable. • High-performance, Low-cost Solution for switching between Different LAN Signals • Ultra-low Quiescent Power (0.1μA typical) • Low Crosstalk: –100dB @ 10 MHz • Low Insertion Loss or On-Resistance: 5 typical • Single Supply Operation: 3.3V ±10% • Off Isolation: –50dB @ 10 MHz • Wide-bandwidth data rates >200 MHz • Packaging (Pb-free & Green available): – 16-pin 150 mil wide plastic QSOP (Q) – 16-pin 173 mil wide plastic TSSOP (L) Block Diagram Pin Configuration IA1 IA0 IB0 IB1 IC0 IC1 ID0 ID1 E S YA YB YC 1 16 VCC IA0 IA1 2 15 E 3 14 ID0 YA IB0 4 13 5 12 ID1 YD IB1 YB 6 11 7 10 IC0 IC1 GND 8 9 YC YD Truth Table(1) Pin Description E S YA YB YC YD Function H X Hi-Z Hi-Z Hi-Z Hi-Z Disable L L IA0 IB0 OC0 ID0 L H IA1 IB1 IC1 ID1 Pin Name Description IAn-IDn Data Inputs S=0 S Select Inputs S=1 E Enable YA-YD Data Outputs GND Ground VCC Power Note: 1. S H = High Voltage Level, L = Low Voltage Level 1 PS8504E 02/02/05 PI3L100 3.3V, Wide Bandwidth, Quad 2:1 Mux/DeMux LAN Switch Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .......................................................... –65°C to +150°C Ambient Temperature with Power Applied ............................. 0°C to +70°C Supply Voltage to Ground Potential (Inputs & Vcc Only) ... –0.5V to +4.6V Supply Voltage to Ground Potential (Outputs & D/O Only) –0.5V to +4.6V DC Input Voltage .................................................................. –0.5V to +4.6V DC Output Current............................................................................ 120 mA 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. Power Dissipation ................................................................................. 0.5W DC Electrical Characteristics (Over the Operating Range, TA = -40°C to +85°C, VCC = 3.3V ±5%) Parameters Test Conditions(1) Description Min. Typ.(2) Max. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 VIL Input LOW Voltage Guaranteed Logic LOW Level -0.5 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ A, B ≤ VCC ±1 VIK Clamp Diode Voltage VCC = Min., IIN = -18mA -1.2 (3) IOS Short Circut Current VH Input Hysteresis atr Control Pins RON Switch On-Resistance ∆RON On-Resistance Match A (B) = 0V, B (A) = VCC 0.8 100 Units V μA V mA 150 mV VCC = Min., VIN = 0V, ION = 48mA 5 7 VCC = Min., VIN = 2.4, ION =15mA 10 15 VIN = 3.0V, E = LOW 1 Ω Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for applicable device type. 2. Typical values are at VCC = 3.3V, TA = 25°C ambient temperature. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Description CIN Input Capacitance COFF Capacitance, Switch Off (Y) CON Capacitance, Switch On COFF Capacitance, Switch Off, (IN) Test Conditions VIN = 0V Typ. Max. - 3 - 17 - 25 - 8 Units pF Note: 1. This parameter is determined by device characterization but is not production tested. 2 PS8504E 02/02/05 PI3L100 3.3V, Wide Bandwidth, Quad 2:1 Mux/DeMux LAN Switch Power Supply Characteristics Test Condidtions(1) Parameters Description Min. ICC Quisecent Power Supply Current VCC = Max. VIN = GND or VCC ∆ICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = VCC -0.6 ICCD Supply Current per Input per MHz(1) VCC =Max., Input Pins Open E = GND Control Input Toggling 50% Duty Cycle Typ.(2) Max. Units 0.1 3.0 μA 750 μA 0.25 mA/ MHZ Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3. Per TTL driven input (VIN = 3.0V, control inputs only); A and B pins do not contribute to ICC. 4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design. Switching Characteristics over Operating Range Paramters Conditions(1) Description Com. Min. Typ. Max. TPLH Propagation Delay(2, 3); In to Y TPY Bus Enable Time; S to Y TPHZ TPLZ Bus Disable Time; E to Y XTALK Crosstalk RL= 100Ω; f = 30MHz See Figure 2 -90 OIRR Off Isolation RL= 100Ω; f = 30MHz -45 BW -3dB Bandwidth RL= 100Ω; See Figure 2 213 tON Turn On Time RL = 100Ω 1.0 5 tOFF Turn Off Time CL = 35pF, See Figure 1 1.0 5 Units 0.25 CL = 50pf RL = 500Ω 1 4.5 1 4.5 ns dB MHz ns Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested. 3. 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 50pF 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 interaction with the load on the driven side. 3 PS8504E 02/02/05 PI3L100 3.3V, Wide Bandwidth, Quad 2:1 Mux/DeMux LAN Switch Applications LAN Switch VCC Bias Voltage vs. RON The PI3L100 was designed to switch between various standards such as 10 Base-T, 100 Base-T, 100 VG-Any LAN, and Token Ring. Also general purpose applications such as loopback, line termination, and line clamps that might normally use mechanical relays are also ideal uses for this LAN Switch (see Figure 4). Generally speaking, this LAN Switch can be used for data rates to 200 Mbps and data signal levels from 0V to 3.6V. LAN Standards To keep RON to a minimum, it is recommended that the VCC voltage be increased to a voltage between 3.3V and 3.6V. Ideally an input voltage between 0.2V and 3.6V will keep RON flat. Signal Distortion Distortion of the input signal is equated to 20 LOG ΔRON/RL. So keeping RON flat as the data signal level varies is critical to low distortion. It should also be noted that increasing the data rate increases harmonic distortion which also effects the signal amplitude. Data Rate per twisted pair (UTP) 10 Base-T 10 Mbps 100 Base-T 100 Mbps 100 VG-Any LAN 25 Mbps Test Circuits 6 $)')4!, ).054 6CC 3 6 $  6/54 7 ).  !.!,/' /54054 P& 0), '.$ %.  T/.  T/&& Figure 1. Switching Time (0! 3 2 4 (0! 0), 7 Figure 2. Gain/Phase Crosstalk, Off Isolation 4 PS8504E 02/02/05 PI3L100 3.3V, Wide Bandwidth, Quad 2:1 Mux/DeMux LAN Switch 6##6 M& 3   6## )!   : )!   )$ 9!  )"   9$ )"   )# 9"   )# '.$   $3/ 6O 7 7 0),  )$ 7 7 05,3% '%.%2!4/2 9# Figure 3. Differential Crosstalk Measurement 42!.3-)4 48 0), 28 /&&3%4!$*534 2%#%)6% Figure 4a. Full Duplex Transceiver 48 7 7 28 Figure 4b. Loop Back Figure 4c. Line Termination 5 Figure 4d. Line Clamp PS8504E 02/02/05 PI3L100 3.3V, Wide Bandwidth, Quad 2:1 Mux/DeMux LAN Switch Packaging Mechanical: 16-pin QSOP (Q)    -).         'UAGE0LANE    $ETAIL!       2%& Xo    2%&     $ETAIL! 3%!4).' 0,!.%                      "3#  ƒ ƒ     888 $%./4%3$)-%.3)/.3).-),,)-%4%23 888 Packaging Mechanical: 16-pin TSSOP (L)              MAX      3%!4).' 0,!.%  "3#         "3#      6 PS8504E 02/02/05 PI3L100 3.3V, Wide Bandwidth, Quad 2:1 Mux/DeMux LAN Switch Ordering Information Ordering Code Packaging Code Package Description PI3L100Q Q 16-pin 150 mil wide plastic QSOP PI3L100QE Q Pb-free & Green, 16-pin 150-mil wide plastic QSOP PI3L100L L 16-pin 173 mil wide plastic TSSOP PI3L100LE L Pb-free & Green, 16-pin 173-mil wide plastic TSSOP Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/mechanicals.php Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 7 PS8504E 02/02/05