PI2DBS412 PERICOM | Alldatasheet

Document overview

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  • PDF pages: 9

Technical content

Features

  • –3dB BW of 1.8 GHz
  • 4 Differential Channel, 2:1 Mux/DeMux
  • Low Bit-to-Bit Skew
  • Low Crosstalk: –68dB @ 10 MHz
  • Low Off Isolation: –77dB @ 10 MHz
  • VCC Operating Range: +1.5V to +2.0V
  • ESD Tolerance: 8kV HBM I/O, 2kV HBM select pin
  • Packaging (Pb-free & Green): – 42-contact, TQFN (ZH42)

Description

Pericom Semiconductor’s PI2DBS412 is an 8-to-4 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 PI2DBS412 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 PI2DBS412 will target the following standards: SAS, SATA I, SATA II, INFINIBAND, HYPERTRANSPORT, and RAP ID I/O. We recommend customers to use Pericom's Re-Driver devices in conjunction with the PI2DBS412 in applications requiring long trace lengths to ensure signal integrity. Block Diagram Pin Description PI2DBS412 1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch, w/ Single Enable SEL 1B1 0B1 3B1 2B1 1B2 0B2 3B2 2B2 5B1 4B1 7B1 6B1 5B2 4B2 7B2 6B2 42 41 40 39 18 19 20 21 0B1 1B1 2B1 3B1 0B2 1B2 2B2 3B2 VCC 4B1 5B1 6B1 7B1 4B2 5B2 6B2 7B2 GND GND VCC VCC SEL GND VCC GND GND VCC GND VCC GND VCC GND VCC GND GND Truth Table Function SEL AN to NB1 L AN to NB2 H

Applications

  • Routers
  • Switch
  • Server
  • Notebook
  • Medical Equipment 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch Note: Stresses greater than those listed under MAX I MUM RAT INGS may cause permanent damage to the de vice. This is a stress rating only and func- tion al op er a tion of the device at these or any other conditions above those indicated in the operational sections of this spec i fi ca tion is not implied. Exposure to absolute max i mum rating con di tions for extended periods may affect re li abil i ty. Maximum Ratings (Above which useful life may be impaired. For user guide lines, not tested.) Paramenter Test Conditions(1) Min. Typ.(2) Max. Units VIH Input HIGH Voltage Guaranteed HIGH level 0.65 x VCC V 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 μA IIL Input LOW Current VCC = Max., VIN = GND Dynamic Electrical Characteristics Over the Operating Range (TA= –40º to +85ºC, VCC = 1.8V±10%, GND=0V) Parameter Test Conditions(1) Min. Typ.(2) Max. Units XTALK(3) Crosstalk See Fig. 1 for Measurement Setup, f = 10 MHz –68 dB OIRR(3) OFF Isolation See Fig. 2 for Measurement Setup, f = 10 MHz –77 BW(3) Bandwidth 1.8 GHz Notes: For Max. or Min. conditions, use appropriate value specifi ed under Electrical Characteristics for the applicable device type. Typical values are at VCC = 1.8V, TA = 25°C ambient and maximum loading. Guaranteed by design. Power Supply Characteristics Parameters Test Conditions(1) Min. Typ.(2) Max. Units ICC Quiescent Power Supply Current VCC = Max., VIN = GND or VCC 200 μA Notes: For Max. or Min. conditions, use appropriate value specifi ed under Electrical Characteristics for the applicable device type. Typical values are at VCC = 1.8V, TA = 25°C ambient and maximum loading. Notes: For Max. or Min. conditions, use appropriate value specifi ed under Electrical Characteristics for the applicable device type. Typical values are at VCC = 1.8V, TA = 25°C ambient and maximum loading. 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch Fig 1. Crosstalk Setup Fig 2. Off-isolation setup PI2DBS412 T R S HP11667A 50-ohm 50-ohm 50-ohm HP4396B 100 -ohm 100 -ohm PI2DBS412 T R S HP11667A 50-ohm 50-ohm 50-ohm HP4396B 100 -ohm 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch Fig 3. S21 (Insertion Loss) and S11 (Refl ection) SET-UP 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch Fig 4. Crosstalk Fig 5. Off Isolation 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch Fig 6. Bandwidth 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch Notes: For max. or min. conditions, use appropriate value specifi ed under Electrical Characteristics for the applicable device type. Switching Characteristics (TA= –40º to +85ºC, VCC = 1.8V±10%) Paramenter Description(1) Min. Max. Units tPZH, tPZL Line Enable Time - SEL to AN, BN 0.5 8.0 ns tPHZ, tPLZ Line Disable Time - SEL to AN, BN 0.5 4.0 RT 4pF CL VCC VIN VOUT 200-ohm 200-ohm 2 x VDD Pulse Generator D.U.T Test Circuit for Electrical Characteristics 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 VCC tPHZ, tPZH (output on B-side) GND Prop Delay Open 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch Test Circuit for Dynamic Electrical Characteristics PI2DBS412 HP11667A HP4396B or Equivalent Switching Waveforms Voltage Waveforms Enable and Disable Times tPLZ VDD/2 VDD/2 VDD VOH VOL VDD/2 VDD/2 tPHZ tPZL tPZH Output Output VOL VOH SEL VOL + 0.15V VOH – 0.15V 07-0123

1.8V, 1.8GHz, Differential Broadband Signal Switch, 4-Differential Channel, 2:1 Mux/DeMux Switch

Ordering Information

Pb-free & Green, 42-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 suffi x = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com Packaging Mechanical: 42-Contact TQFN (ZH) 07-0123