PI2PCIE212 1.8V, PCI Express Compliant, 2 Differential Channel, 2:1 Mux/DeMux Switch w/ Single Enable Features 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. 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) Application Switch a PCI-Express lane output between two PCI-Express lane inputs 0B2 1B2 2B2 3B2 SEL GND 1 SEL VDD 28 27 26 2 23 1B1 3 22 2B1 A0 4 21 3B1 A1 5 20 GND A2 6 19 VDD A3 7 18 0B2 VDD 8 17 1B2 VDD 9 16 2B2 GND 10 15 3B2 GND 11 12 13 L An to nB2 H 1 14 GND An to nB1 VDD SEL GND 0B1 GND Function 25 24 VDD Truth Table VDD VDD 0B1 1B1 2B1 3B1 A0 A1 A2 A3 GND Pin Description Block Diagram 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 ......................................... –65°C to +150°C 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 = –40°C to +85°C, VCC = 1.5V to 2.0V) Paramenter Description Test Conditions Min. Typ.(2) Max. VIH Input HIGH Voltage Guaranteed HIGH level 0.65 x VCC - - VIL Input LOW Voltage Guaranteed LOW level -0.5 - 0.35 x VCC VIK Clamp Diode Voltage VCC = Max., IIN = –18mA - -0.7 -1.2 IIH Input HIGH Current VCC = Max., VIN = VCC - - ±5 IIL Input LOW Current VCC = Max., VIN = GND - - ±5 2 PS8789 Units V μA 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 Test Conditions(1) Description Quiescent Power Supply Current Min. Typ.(2) VCC = Max., VIN = GND or VCC Max. 200 Units µA 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 = 25°C ambient and maximum loading. Dynamic Electrical Characteristics Over the Operating Range (TA= -40º to +85ºC, VCC = 1.8V±10%, GND=0V) Parameter XTALK OIRR Description Test Conditions Min. Typ.(2) Crosstalk See Fig. 1 for Measurement Setup, f = 10 MHz -60 OFF Isolation See Fig. 2 for Measurement Setup, f = 10 MHz -65 Max. Units dB 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 10 dB/ REF -20 dB -44.102 dB 100 MHz Cor Select Letter Space Back Space 0 Hld 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 10 dB/ REF --20 dB -46.499 dB 100 MHz Cor Select Letter Space Back Space Erase Title 0 Hld Done STOR DEV [DISK] Power 0 dbm IF BW 300 Hz Start 100 kHz SWP 1.624 sec STOP 1.8 GHz Cancel Fig 4. Off Isolation Switching Characteristics (TA= -40º to +85ºC, VCC = 1.8V±10%) Paramenter tPZH, tPZL tPHZ, tPLZ Min. Typ.(2) Max. Line Enable Time - SEL to AN, BN 0.5 - 8.0 Line Disable Time - SEL to AN, BN 0.5 - 4.0 Description 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 Pulse Generator 200-ohm VIN D.U.T VOUT 4pF CL RT 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 = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. 5. The outputs are measured one at a time with on transition per measurement. Switch Positions Test Switch tPLZ, tPZL (output on I-side) 2 x VCC tPHZ, tPZH (output on I-side) GND Prop Delay Open Test Circuit for Dynamic Electrical Characteristics S1 HP4396B or Equivalent 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 VCC SEL VCC/2 VCC/2 0V Output tPZL tPLZ VCC/2 VOH VOL +0.3V tPHZ tPZH VOH –0.3V VCC/2 VOL VOH VOL 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) 1.50 REF. .0.8±0.04 3.50±0.10 Pin 28 4.50 REF. 5.50±0.10 4.00±0.10 Pin 1 2.00±0.10 0.50 0.0-0.05 0.25±0.05 0.40±0.10 0.20 REF. 0.50 Ordering Information Ordering Code Package Code PI2PCIE212ZHE 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