PI2PCIE2422 PCI Express Gen II, 2-lane (4-channel), Differential Mux/Demux with Bypass Features Description • • • • • • • • Pericom semiconductor’s PI2PCIE2422 is an 8 to 4 channel differential multiplexer/demultiplexer featuring 8-channel passthrough. It supports two full PCI Express lanes at 5.0Gbps Gen II performance. 8 Differential Channel SPST switch with Mux/DeMux option PCI Express Gen II performance Low Bit-to-Bit Skew: 10ps (between +/- signals) Low Crosstalk: -35dB @ 3.0 GHz Low Off Isolation: -26db @ 3.0 GHz VCC Operating Range: +1.5V to +2.0V ESD Tolerance >2kV HBM Packaging (Pb-free & Green): 42-contact TQFN (ZH42) With the select control input low Port A connects to Port B, and Port C connects to port D for an 8-channel differential pass-though. When the select control input is high Port A connects to Port D, and Port B and Port C are in a high-impedance state. The mux/demux function is between Port A and Ports B or D as determined by the select input control. Truth Table Function SEL Ax = Bx Cx = Dx L Ax = Dx B = C = Hi-Z H Block Diagram Pin Diagram B6 B7 B1 C0 3 36 D0 C1 4 35 D1 A2 5 34 B2 A3 6 33 B3 C2 7 32 D2 29 B4 A5 11 28 B5 C4 12 27 D4 C5 13 26 D5 A6 14 25 B6 A7 15 24 B7 C6 16 23 D6 22 D7 C7 C6 C7 07-0222 D6 D7 1 17 GND 10 21 A4 VCC VCC 20 D3 30 GND 31 9 VCC 8 19 C3 SEL 18 A6 A7 D4 D5 B0 37 39 C4 C5 B4 B5 GND A4 A5 D2 D3 38 2 40 C2 C3 B2 B3 1 A1 41 A2 A3 D0 D1 A0 42 C0 C1 VCC VCC A0 A1 B0 B1 GND SEL PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Pin Description Pin # 1, 2 3, 4 5, 6 7, 8 10, 11 12, 13 14, 15 16, 17 22, 23 24, 25 26, 27 28,29 31, 32 33, 34 35, 36 37, 38 9 Pin Name A0, A1 C0, C1 A2, A3 C2, C3 A4, A5 C4, C5 A6, A7 C6, C7 D7, D6 B7, B6 D5, D4 B5, B4 D3, D2 B3, B2 D1, D0 B1, B0 SEL I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I 18, 20, 30, 40, 42 19, 21, 39, 41 VCC GND Pwr Pwr 07-0222 Description Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Operation mode Select (when SEL=0: A→B, C→D, when SEL=1: A→D, B & C=Hi-Z) 1.8V positive supply voltage Power ground 2 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option 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(1) Max Units 0.35 x VCC V VIH Input HIGH Voltage Guaranteed HIGH level 0.65 x VCC VIL VIK Input LOW Voltage Guaranteed LOW level –0.5 Clamp Diode Voltage VCC = Max., IIN = –18mA IIH IIL Input HIGH Current VCC = Max., VIN = VCC ±5 Input LOW Current VCC = Max., VIN = GND ±5 RON On Resistance VCC = Min., VIN = 1.3V, IIN = 40mA 10 CON(AB) Capacitance on A/B, C/D VIN = 0, VCC = 1.8V –0.7 –1.2 3.0 μA Ohm pF Note: 1. Typical values are at VCC = 1.8V, TA = 25°C ambient and maximum loading. Power Supply Characteristics Parameters ICC Test Conditions(1) Description Quiescent Power Supply Current Min. VCC = Max., VIN = GND or VCC Typ.(2) 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 Description Test Conditions Min. Typ.(1) XTALK Crosstalk See Fig. 1 for Measurement Setup, f = 3.00 GHz f = 100 MHz –35 –70 OIRR OFF Isolation See Fig. 2 for Measurement Setup, f = 3.00 GHz f = 100 MHz –26 –60 ILOSS Differential Insertion Loss BW Bandwidth (-3dB) f = 3 GHz Max. Units dB -3 3.4 GHz Notes: 1. Guaranteed by design. Typical values are at VCC = 1.8V, Ta = 25°C ambient and maximum loading. 07-0222 3 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option HP4396B R S T HP11667A PI2PCIE2422 50-ohm 100 -ohm 50-ohm 50-ohm 100 -ohm Fig 1: Crosstalk Setup HP4396B R S T HP11667A 50-ohm PI2PCIE2422 50-ohm 50-ohm 100 -ohm Fig 2: Off-isolation setup 07-0222 4 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Fig 3: Typical Crosstalk Plot from 1MHz to 6.0GHz, Vcc=1.8V, 25°C Fig 4: Typical Off Isolation Plot from 1 MHz to 6.0 GHz, VCC = 1.8V, TA=25°C 07-0222 5 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Fig 5: Typical Insertion Loss Plot from 1MHz to 6.0GHz, Vcc=1.8V, 25C 07-0222 6 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Switching Characteristics (TA= -40º to +85ºC, VCC = 1.8V±10%) Paramenter Description Min. Typ. Max. tPZH, tPZL Line Enable Time - SEL to AN, BN 0.5 8.0 tPHZ, tPLZ Line Disable Time - SEL to AN, BN 0.5 8.0 tb-b Bit-to-bit skew within same differential pair 4 tch-tch Channel-to-channel timing skew 35 Units ns ps Test Circuit for Electrical Characteristics(1) 2 x VCC VCC 200-ohm Pulse Generator VIN VOUT D.U.T 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 one transition per measurement. Switch Positions Test Switch tPLZ, tPZL (output on B-side) 2 x VCC tPHZ, tPZH (output on B-side) GND Prop Delay Open 07-0222 7 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Test Circuit for Dynamic Electrical Characteristics HP4396B or Equivalent S1 R1 T1 PI2PCIE2422 HP11667A Switching Waveforms VCC SEL VCC/2 VCC/2 0V Output tPZL tPLZ VCC/2 VOH VOL + 0.15V tPHZ tPZH VOH VCC/2 0.15V VOL VOH VOL Output Voltage Waveforms Enable and Disable Times 07-0222 8 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Applications Information Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd PCI Express Application Specific Measurements and Test Set-up Figure 6: the test set-up for the PI2PCIE2422 eye test Notes: 1. A modified PI2PCIE2422 application board with 16-inch differential trace is used for Eye management. 2. Agilent N4902B BERT is used to generate a K28.5 pattern at 5 Gbps with 500mV single-end swing. 3. To create the P12PCIE2422-free test condition, the PI2PCIE2422 chip is removed and a wire is connected between the trace and output probe. 4. An Agilent Infinuum 54855A is used and Serial Data Analysis software is ran to capture the Eye. 07-0222 9 PS8871C 10/03/07 PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option DATE: 03/10/06 DESCRIPTION: 42-contact Thin Fine Pitch Quad Flat No-Lead (TQFN) PACKAGE CODE: ZH (ZH42) REVISION: A DOCUMENT CONTROL #: PD-2035 Ordering Information Ordering Code PI2PCIE2422ZHE Package Code Package Description ZH Pb-free and Green 42-contact TQFN Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. E = Lead-free and green 2. X suffix = tape and reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 07-0222 10 PS8871C 10/03/07