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| PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Channel, 2:1 Mux/DeMux Switch w/ Single Enable Features * * * * * * * * 2 Differential Channel, 2:1 Mux/DeMux PCI Express signal compliance Low Bit-to-Bit Skew Low Crosstalk: -60dB@10MHz Low Off Isolation: -65dB@10MHz VCC Operating Range: +1.5V to +2.0V ESD Tolerance >2kV HBM Packaging (Pb-free & Green): - 28 contact TQFN (ZH) Description Pericom Semiconductor's PI2PCIE212 is a 4 to 2 differential channel multiplexer/demultiplexer switch. The PI2PCIE family of switch solutions is fully compliant with PCI-express signals at 2.5Gbps. PI2PCIE212 can switch PCI-express signals up to a maximum length of 16 inches. Due to its low bit-to-bit skew, high channel-to-channel noise isolation and high bandwidth, this product is ideal for PCI Express switching. Application Switch a PCI-Express lane output between two PCI-Express lane inputs Block Diagram A0 A1 A2 A3 0B1 1B1 2B1 3B1 0B2 1B2 2B2 3B2 SEL Pin Description GND GND 25 VDD GND SEL VDD A0 A1 A2 A3 VDD VDD GND 1 2 3 4 5 6 7 8 9 10 28 27 26 VDD 24 23 22 21 0B1 1B1 2B1 3B1 GND VDD 0B2 1B2 2B2 3B2 GND 20 19 18 17 16 11 12 13 14 15 VDD GND VDD GND Truth Table Function An to nB1 An to nB2 SEL L H 1 PS8789 09/19/05 PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Ch., 2:1 Mux/DeMux Switch w/ Single Enable Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature ......................................... -65C to +150C Supply Voltage to Ground Potential .................... -0.5V to +2.5V DC Input Voltage ..................................................-0.5V to +VCC 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 Switching over Operating Range (TA = -40C to +85C, VCC = 1.5V to 2.0V) Paramenter VIH VIL VIK IIH IIL Description Input HIGH Voltage Input LOW Voltage Clamp Diode Voltage Input HIGH Current Input LOW Current Test Conditions Guaranteed HIGH level Guaranteed LOW level VCC = Max., IIN = -18mA VCC = Max., VIN = VCC VCC = Max., VIN = GND Min. 0.65 x VCC -0.5 Typ.(2) -0.7 Max. 0.35 x VCC -1.2 5 5 A V Units 2 PS8789 09/19/05 PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Ch., 2:1 Mux/DeMux Switch w/ Single Enable Power Supply Characteristics Parameters ICC Description Quiescent Power Supply Current Test Conditions(1) VCC = Max., VIN = GND or VCC Min. Typ.(2) 200 Max. Units A 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 = 1.8V, TA = 25C ambient and maximum loading. Dynamic Electrical Characteristics Over the Operating Range (TA= -40 to +85C, VCC = 1.8V10%, GND=0V) Parameter XTALK Description Crosstalk Test Conditions See Fig. 1 for Measurement Setup, f = 10 MHz See Fig. 2 for Measurement Setup, f = 10 MHz Min. Typ.(2) -60 dB -65 Max. Units OIRR OFF Isolation Notes: 1. Guaranteed by design. Fig 1. Crosstalk Setup 3 PS8789 09/19/05 PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Ch., 2:1 Mux/DeMux Switch w/ Single Enable Fig 2. Off-isolation setup CH1 A/R log MAG Cor 10 dB/ REF -20 dB -44.102 dB 100 MHz Select Letter Space Back Space Hld 0 Erase Title Done STOR DEV [DISK] IF BW 300 Hz Start 100 kHz Power 0 dbm SWP 1.624 sec STOP 1.8 GHz Cancel Fig 3. Crosstalk 4 PS8789 09/19/05 PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Ch., 2:1 Mux/DeMux Switch w/ Single Enable CH1 A/R log MAG Cor 10 dB/ REF --20 dB -46.499 dB 100 MHz Select Letter Space Back Space Hld 0 Erase Title Done STOR DEV [DISK] IF BW 300 Hz Start 100 kHz Power 0 dbm SWP 1.624 sec STOP 1.8 GHz Cancel Fig 4. Off Isolation Switching Characteristics (TA= -40 to +85C, VCC = 1.8V10%) Paramenter tPZH, tPZL tPHZ, tPLZ Description Line Enable Time - SEL to AN, BN Line Disable Time - SEL to AN, BN Min. 0.5 0.5 Typ.(2) - Max. 8.0 4.0 Units Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 5 PS8789 09/19/05 PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Ch., 2:1 Mux/DeMux Switch w/ Single Enable Test Circuit for Electrical Characteristics(1) 2 x VCC VCC 200-ohm D.U.T RT VOUT 4pF CL Pulse Generator VIN 200-ohm Notes: 1. CL = Load capacitance: includes jig and probe capacitance. 2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator 3. 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. 4. All input impulses are supplied by generators having the following characteristics: PRR MHz, ZO = 50, tR 2.5ns, tF 2.5ns. 5. The outputs are measured one at a time with on transition per measurement. Switch Positions Test tPLZ, tPZL (output on I-side) tPHZ, tPZH (output on I-side) Prop Delay Switch 2 x VCC GND Open Test Circuit for Dynamic Electrical Characteristics HP4396B or Equivalent S1 R1 T1 PI2PCIE212 HP11667A 6 PS8789 09/19/05 PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Ch., 2:1 Mux/DeMux Switch w/ Single Enable Switching Waveforms SEL VCC/2 tPZL tPLZ VCC/2 0V Output VOH VCC VCC/2 tPZH tPHZ VOL +0.3V VOH -0.3V VOL VOH VOL VCC/2 Output Voltage Waveforms Enable and Disable Times 7 PS8789 09/19/05 PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Ch., 2:1 Mux/DeMux Switch w/ Single Enable Package Mechanical: 28-Contact TQFN (ZH) 3.500.10 .0.80.04 1.50 REF. Pin 28 Pin 1 4.000.10 5.500.10 0.50 2.000.10 0.0-0.05 0.400.10 0.20 REF. 0.50 0.250.05 Ordering Information Ordering Code PI2PCIE212ZHE Package Code ZH Package Type Pb-free & Green, 28-Contact TQFN Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com 8 PS8789 09/19/05 4.50 REF. |
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