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| PI2DBS212 1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch, w/ Single Enable Features * * * * * * * * * 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 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. 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 Block Diagram A0+ A0A1+ A1- B0+ B0B1+ B1C0+ C0C1+ C1- GND VDD SEL A0+ A0A1+ A1VDD VDD GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 B0+ B0B1+ B1GND VDD C0+ C0C1+ C1- Pin Description - 28-Contact TQFN GND VDD GND VDD GND NC SEL A0+ A0A1+ A1NC 1 2 3 4 5 6 7 8 SEL 28 27 26 25 24 23 22 21 20 19 18 17 B0+ B0B1+ B1GND VDD C0+ C0C1+ C1- Truth Table Function Port A to Port B Port A to Port C 07-0243 SEL L H 1 VDD GND 9 16 11 12 13 14 10 15 GND VDD GND VDD 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.) Storage Temperature....................................-65C to +150C 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 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, VDD = 1.8V 10%) Paramenter VIH VIL VIK IIH IIL RON CON Description Input HIGH Voltage Input LOW Voltage Clamp Diode Voltage Input HIGH Current Input LOW Current ON Resistance Capacitance ON (A/B) Test Conditions(1) Guaranteed HIGH level Guaranteed LOW level VDD = Max., IIN = -18mA VDD = Max., VIN = VCC VDD = Max., VIN = GND VDD = Min., VIN = 1.3V, IIN = 40mA VIN = 0, VDD = 1.8V 3.5 Min. 0.65 x VDD -0.5 -0.7 0.35 x VDD -1.2 5 5 10 A Ohm pF V Typ.(2) Max. Units 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 = 25C ambient and maximum loading. Power Supply Characteristics Parameters IDD Description Quiescent Power Supply Current Test Conditions(1) VDD = Max., VIN and VSEL = GND or VDD Min. Typ.(2) 300 Max. 400 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 VDD = 1.8V, TA = 25C ambient and maximum loading. Dynamic Electrical Characteristics Over the Operating Range (TA= -40 to +85C, VDD = 1.8V10%) Parameter XTALK OIRR ILOSS BW Description Crosstalk OFF Isolation Differential Insertion Loss Bandwidth Test Conditions See Fig. 1 for Measurement Setup, f = 1.65 GHz See Fig. 2 for Measurement Setup, f = 1.65 GHz f = 1.65 GHz @ -3 dB Min. Typ.(1) -26 -35 -1.8 2.0 GHz dB Max. Units Notes: 1. Guaranteed by design. Typical values are at VDD = 1.8V, TA = 25C 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 S HP11667A 50-ohm 50-ohm 50-ohm R PI2DBS212 100 -ohm T 100 -ohm Fig 1. Crosstalk Setup HP4396B S HP11667A 50-ohm 50-ohm 50-ohm 100 -ohm R T PI2DBS212 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= -40 to +85C, VDD = 1.8V10%) Paramenter tPZH, tPZL tPHZ, tPLZ tb-b tch-ch tPD Description(1) Line Enable Time - SEL to AN, BN Line Disable Time - SEL to AN, BN Bit-to-bit skew, within same differential pair Channel-to-channel timing skew Propagation Delay, A to B or C / B or C to A 50 Min. 0.5 0.5 Typ. Max. 8.0 4.0 5 12 150 ps Units ns 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 D.U.T RT VOUT 4pF CL 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 = 50, tR 2.5ns, tF 2.5ns. * The outputs are measured one at a time with one transition per measurement. Switch Positions Test tPLZ, tPZL (output on B-side) tPHZ, tPZH (output on B-side) Prop Delay Switch 2 x VDD GND 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 SEL VDD/2 tPZL VDD/2 0V Output tPLZ VOH VDD VDD/2 tPZH tPHZ VOL + 0.15V VOH - 0.15V VOL VOH VOL VDD/2 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) Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 * www.pericom.com 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 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. 0.250.05 0.50 Pericom Semiconductor Corporation http://www.pericom.com Tel: (408) 435-0800 * Fax: (408) 435-1100 DESCRIPTION: 28-Contact, Very Thin Quad Flat No-Lead, TQFN PACKAGE CODE: ZH Ordering Information Ordering Code PI2DBS212QE PI2DBS212ZHE Package Code Q ZH Package Description Pb-free & Green, 20-lead QSOP 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 4.50 REF. PS8921A 10/31/07 |
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