PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch, w/ Single Enable Features Description • • • • • • • • • Pericom Semiconductor’s PI2DBS212 is an 1:2 differential channel multiplexer/demultiplexer switch. Using a specialized design scheme, Pericom has been able to achieve a performance of 3Gbps data rate mux/de-mux function. Due to its bi-directional nature, the PI2DBS212 can be used to allocate bandwidth to two different locations as a demux, or connect two high-speed sources to a single reciever as a mux. SAS, SATA2, XAUI Switch 2 Differential Channel, 2:1 Mux/DeMux Bandwidth of 2.0 GHz (–3dB) Low Bit-to-Bit Skew : <5 ps Low Crosstalk: –26dB @ 3.2 Gbps Low Off Isolation: –35dB @ 3.2 Gbps VDD Voltage: +1.8V ESD Tolerance: 8kV HBM I/O, 2kV HBM select pin Packaging (Pb-free & Green): – 20-Lead QSOP – 28-Contact TQFN The PI2DBS212 will target the following standards: SAS, SATA I, SATA II, XAUI, INFINIBAND, HYPERTRANSPORT, and RAP ID I/O, for application in computers, consumer electronics, instrumentation, etc. Pin Description - 20-Lead QSOP GND VDD SEL A0+ A0A1+ A1VDD VDD GND Block Diagram B0+ B0B1+ B1C0+ C0C1+ C1- 1 NC 2 3 Truth Table L Port A to Port C H 07-0243 1 GND 24 B0+ 23 22 B0- 4 5 21 20 6 19 7 8 18 17 9 16 11 12 13 14 10 15 VDD Port A to Port B VDD GND 28 27 26 25 B1+ B1GND VDD C0+ C0C1+ C1- GND A0A1+ A1NC GND VDD VDD GND SEL A0+ SEL B0+ B0B1+ B1GND VDD C0+ C0C1+ C1- Pin Description - 28-Contact TQFN SEL Function 20 19 18 17 16 15 14 13 12 11 GND VDD A0+ A0A1+ A1- 1 2 3 4 5 6 7 8 9 10 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) 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. Storage Temperature....................................–65°C to +150°C Supply Voltage to Ground Potential...............–0.5V to +2.5V DC Input Voltage ............................................–0.5V to VDD DC Output Current......................................................120mA Power Dissipation...........................................................0.5W DC Electrical Characteristics for Switching over Operating Range (TA = –40°C to +85°C, VDD = 1.8V ±10%) Paramenter Test Conditions(1) Description Min. Typ.(2) Max. Units 0.35 x VDD V VIH Input HIGH Voltage Guaranteed HIGH level 0.65 x VDD VIL Input LOW Voltage Guaranteed LOW level –0.5 VIK Clamp Diode Voltage VDD = Max., IIN = –18mA IIH Input HIGH Current VDD = Max., VIN = VCC ±5 IIL Input LOW Current VDD = Max., VIN = GND ±5 RON ON Resistance VDD = Min., VIN = 1.3V, IIN = 40mA 10 CON Capacitance ON (A/B) VIN = 0, VDD = 1.8V –0.7 –1.2 3.5 μA Ohm pF Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VDD = 1.8V, TA = 25°C ambient and maximum loading. Power Supply Characteristics Test Conditions(1) Parameters Description IDD Quiescent Power Supply Current Min. Typ.(2) Max. Units 300 400 μA VDD = Max., VIN and VSEL = GND or VDD Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VDD = 1.8V, TA = 25°C ambient and maximum loading. Dynamic Electrical Characteristics Over the Operating Range (TA= –40º to +85ºC, VDD = 1.8V±10%) Parameter Description Test Conditions Min. Typ.(1) Crosstalk See Fig. 1 for Measurement Setup, f = 1.65 GHz –26 OIRR OFF Isolation See Fig. 2 for Measurement Setup, f = 1.65 GHz –35 ILOSS Differential Insertion Loss f = 1.65 GHz –1.8 @ –3 dB 2.0 XTALK BW Bandwidth Max. Units dB GHz Notes: 1. Guaranteed by design. Typical values are at VDD = 1.8V, TA = 25°C ambient, and maximum loading. 07-0243 2 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch HP4396B R S T HP11667A PI2DBS212 50-ohm 100 -ohm 50-ohm 50-ohm 100 -ohm Fig 1. Crosstalk Setup HP4396B R S T HP11667A 50-ohm PI2DBS212 50-ohm 50-ohm 100 -ohm Fig 2. Off-isolation setup 07-0243 3 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch Fig 3. S21 (Insertion Loss) and S11 (Reflection) SET-UP 07-0243 4 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch Fig 4. Crosstalk Fig 5. Off Isolation 07-0243 5 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch Fig 6. Bandwidth 07-0243 6 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch Switching Characteristics (TA= –40º to +85ºC, VDD = 1.8V±10%) Description(1) Paramenter 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 4.0 tb-b Bit-to-bit skew, within same differential pair 5 tch-ch Channel-to-channel timing skew 12 tPD Propagation Delay, A to B or C / B or C to A 50 Units ns ps 150 Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. Test Circuit for Electrical Characteristics 2 x VDD VDD 200-ohm Pulse Generator VIN VOUT D.U.T 4pF 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 • 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 = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. • 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 VDD tPHZ, tPZH (output on B-side) GND Prop Delay Open 07-0243 7 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch Test Circuit for Dynamic Electrical Characteristics HP4396B or Equivalent S1 R1 T1 PI2DBS212 HP11667A Switching Waveforms VDD SEL VDD/2 VDD/2 0V Output tPZL tPLZ VDD/2 VOH VOL + 0.15V tPHZ tPZH VOH – 0.15V VDD/2 VOL VOH VOL Output Voltage Waveforms Enable and Disable Times 07-0243 8 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch Packaging Mechanical: 20-Contact QSOP (Q) $/#5-%.4#/.42/,./ 0$ 2%6)3)/.' -). $!4% 'UAGE0LANE $ETAIL! 2%& 2%& X $ETAIL! 3%!4).' 0,!.% "3# 888 $%./4%3$)-%.3)/.3 888 ).-),,)-%4%23 Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com .OTE #ONTROLLINGDIMENSIONSININCHES 2EF*%$%#-/"!$ $%3#2)04)/.0IN-IL7IDE13/0 0!#+!'%#/$%1 07-0243 9 PS8921A 10/31/07 PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch DOCUMENT CONTROL NO. PD - 2034 REVISION: A DATE: 03/09/05 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 Pericom Semiconductor Corporation http://www.pericom.com Tel: (408) 435-0800 • Fax: (408) 435-1100 .OTES !LL$IMENIONSAREINMILLIMETERS 2EF*%$%#-/)7-&$ DESCRIPTION: 28-Contact, Very Thin Quad Flat No-Lead, TQFN PACKAGE CODE: ZH Ordering Information Ordering Code PI2DBS212QE PI2DBS212ZHE Package Code Package Description Q Pb-free & Green, 20-lead QSOP ZH Pb-free & Green, 28-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 07-0243 10 PS8921A 10/31/07