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  • PDF pages: 12

Technical content

Features

  • Meets or Exceeds the Requirements of ANSI TIA/ EIA-644-1995
  • Designed for Signaling Rates up to 650 Mbit/s (325 MHz)
  • Operates from a 3.3V Supply: –40°C to +85°C
  • Low Voltage Differential Signaling with Output Voltages of ±350mV into: - 100 Ohm load (PI90LV022) - 50 Ohm load Bus LVDS Signaling (PI90LVB022)
  • Accepts ±350mV differential inputs
  • Wide common mode input voltage range: 0.2V to 2.7V
  • Output drivers are high impedance when disabled or when V CC ≤ 1.5V
  • Inputs are open, short, and terminated fail safe
  • Propagation Delay Time: 3.5ns
  • ESD protection is 10kV on bus pins
  • Bus Pins are High Impedance when disabled or with V CC less than 1.5V
  • TTL Inputs are 5V I/O Tolerant
  • Power Dissipation at 400Mbit/s less than 150mW
  • Industrial temperature rating
  • Packaging (Pb-free & Green available): - 16-pin SOIC (W) - 16-pin TSSOP (L)

Description

The PI90LV022 and PI90LVB022 are differential line drivers and receivers that use Low Voltage Differential Signaling (LVDS) to achieve signaling rates as high as 650 Mbps. The receiver outputs can be switched to either or both drivers through the multiplexer control signals S0 and S1. This allows the flexibility to perform splitter or signal routing functions with a single device. The LVDS standard provides a minimum differential output voltage magnitude of 247mV into a 100 Ohm load and receipt of 100mV DC signals with up to 1V of ground potential difference between a transmitter and receiver. The PI90LVB022 doubles the output drive current to achieve Bus LVDS signaling levels with a 50 Ohm load. A doubly terminated Bus LVDS line enables multi-point configura- tions. Switching between channels does not create false transitions on the outputs. The intended application of these devices and signaling technique is for both point-to-point base-band (PI90LV022) and multipoint (PI90LVB022) data transmissions over controlled impedance media. Block Diagram Pin Configuration 1DE 2DE S0 S1 1DE GND V CC VCC 2DE GND 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI90LV022, PI90LVB022 LVDS Mux/Repeater 16-Pin L,W

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Figure 1. Possible Signal Routing

00 B 1/A1B 1/A1r ettilpS

01 B 2/A2B 2/A2r ettilpS

10 B 1/A1B 2/A2r etuoR

11 B 2/A2B 1/A1r etuoR

Table 1. MUX Truth Table Note: Setting nDE to 0 will set Ouput nY/nZ to High Impedance.

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Input Voltage Range, V Absolute Maximum Ratings Over Operating Free-Air Temperature† † Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to Absolute-Maximum-Rated conditions for extended periods may affect device reliability. Recommended Operating Conditions .niM. moN. xaMs tinU V,egatloVylppuS CC 0.33 .36 .3 V V,egatloVtupnIleveL-hgiH HI ED2,ED1,1S,0S2 V,egatloVtupnIleveL-woL LI ED2,ED1,1S,0S8 .0 egatloVtupnIlaitnereffiDfoedutingaM  V DI  1.06 .0 V,egatloVtupniedoM-nommoC CI )2erugiFees(  V DI   V DI  V CC 8.0– T,erutarepmetria-eerfgnitarepO A 04–5 8C ° 2.4 – Notes: 1. All voltage values, except differential I/O bus voltages, are with respect to ground terminal. 2. Tested in accordance with MIL-STD-883C Method 3015.7

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Figure 2. Common-Mode Input Voltage vs. Differential Voltage

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lobmySr etemaraPs noitidnoCtseT. niM. pyT )1( .xaMs tinU V DO edutingamegatlovtuptuolaitnereffiD RL mhO001= )220VL( RL mhO05= )220BVL( 3.giFeeS 7420 440 95 Vm ∆ V DO edutingamegatlovtuptuolaitnereffidniegnahC setatscigolneewteb 05–0 5 V )SS(CO egatlovtuptuoedom-nommocetats-ydaetS 4.giFeeS 521.15 73.1V ∆ V )SS(CO tuptuoedom-nommocetats-ydaetsniegnahC setatscigolneewtebegatlov 05–3 0 5 Vm V )PP(CO egatlovtuptuoedom-nommockaep-ot-kaeP 051 I CC tnerrucylppuS daoLoN8 2 1 Am RL )220VL(mhO001=3 10 2 RL )220BVL(mhO05=1 27 2 delbasiDslennahChtoB3 6 IH tnerructupnilevel-hgiH ED V HI 5= 04A n 1S,0S3 –A µ I LI tnerructupnilevel-woL ED V LI V8.0= 02–A n 1S,0S0 1A µ I SO tnerructuptuotiucric-trohS V YO Vro ZO ,V0= V DO )220VL(V0= 01– Am 01– V YO Vro ZO ,V0= V DO )220BVL(V0= 01– 01– I ZO tnerructuptuoecnedepmI-hgiH V DO Vm006=5 .15 2± AnVO VroV0= CC 5.15 2± I )FFO(O tnerructuptuoffo-rewoPV CC V,V0= O V6.3=5 .10 4± C NI ecnaticapactupnI Fp ED2,ED1,1S,0S8 Receiver/Driver Electrical Characteristics Over Recommended Operating Conditions (unless otherwise noted) Note: 1. All typical values are at 25°C and with a 3.3 supply

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snoitidnoC .niM. pyT )1( .xaMs tinU t HLP hgih-ot-wol,yalednoitagaporplaitnereffiD CL Fp01= )5.giFeeS( 0.40 .6 sn t LHP wol-ot-hgih,yalednoitagaporplaitnereffiD 0.40 .6 t )p(ks (weksesluP  t LHP t- HLP  )2 .0– tr hgih-ot-wol,noitisnarT2 20VL09IP9 .05 .1 tr hgih-ot-wol,noitisnarT2 20BVL09IP6 .03 .1 tf wol-ot-hgih,noitisnarT2 20VL09IP8 .05 .1 tf wol-ot-hgih,noitisnarT2 20BVL09IP5 .03 .1 t ZHP tuptuoecnedepmi-hgih-ot-level-hgih,emityalednoitagaporP )6.giFeeS( 0.40 1 t ZLP tuptuoecnedepmi-hgih-ot-level-wol,emityalednoitagaporP 3.40 1 t HZP tuptuolevel-hgih-ot-ecnedepmi-hgih,emityalednoitagaporP 0.30 1 t LZP tuptuolevel-wol-ot-ecnedepmi-hgih,emityalednoitagaporP 0.20 1 t LHP xD_1R_ ,wekslennahc-ot-lennahC revirdotreviecer )2( sp t HLP xD_1R_ 59 t LHP xD_2R_ 59 t HLP xD_2R_ 59 Differential Receiver to Driver Switching Characteristics Over Recommended Operating Conditions (unless otherwise noted) Notes: 1. All typical values are at 25°C and with a 3.3 supply. 2. These parametric values are measured over supply voltage and temperature ranges recommended for the device.

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Figure 3. Test Circuit and Voltage Definitions for the Differential Output Signal Figure 4. Test Circuit and Definitions for the Driver Common-Mode Output Voltage C. CL includes instrumentation and fixture capacitance within 6mm of the D.U.T. D. The measurement of VOC(PP) is made on test equipment with a –3dB bandwidth of at least 300 MHz. C. CL includes instrumentation and fixture capacitance within 6mm of the D.U.T. D. The measurement of VOC(PP) is made on test equipment with a –3dB bandwidth of at least 300 MHz.

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Figure 5. Differential Receiver to Driver Propagation Delay and Driver Transition Time Waveforms pulse repetition rate (PPR) = 50 Mpps, pulse width = 10 ±0.2ns.

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Figure 6. Enable and Disable Timing Circuit

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IOH – High-Level Output Current – mA PI90LV022B PI90LVB022B PI90LVB022B PI90LV022B HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT –2 –1 1.5 VCC = 3.3 V TA = 25°C 2.5 0–3 VOH– High-Level Ouptut Voltage – V 3.5 IOL – Low-Level Output Current – mA LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT VCC = 3.3 V TA = 25°C VOL – Low-Level Output Voltage – V IOH – High-Level Output Current – mA HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT –4 –2 1.5 VCC = 3.3 V TA = 25°C 2.5 0–6 VOH– High-Level Output Voltage – V 3.5 IOL – Low-Level Output Current – mA LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT VCC = 3.3 V TA = 25°C 124 VOL – Low-Level Output Voltage – V 61 02 Figure 7 Figure 8 Figure 9 Figure 10

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Packaging Mechanical: 16-Pin SOIC (W) .193 .201 .047 max. .002 .006 SEATING PLANE .0256 BSC .018 .030 .004 .008 .252 BSC .169 .177 X.XX X.XX DENOTES CONTROLLING DIMENSIONS IN MILLIMETERS 0.05 0.15 6.4 0.45 0.75 0.09 0.20 4.3 4.5 1.20 4.9 5.1 0.65 0.19 0.30 .007 .012 Packaging Mechanical: 16-Pin TSSOP (L) SEATING PLANE .050 BSC 0-8˚ .149 .157 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS 3.78 3.99.386 .393 9.80 10.00 1.27 .053 .068 1.35 1.75 .2284 .2440 5.80 6.20 .0040 .0098 0.10 0.25 .013 .020 .0155 .0260 0.330 0.508 0.393 0.660 .0075 .0098 0.25 0.50 .0099 .0196 x 45˚ 0.19 0.25 .016 .050 0.41 1.27REF

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Ordering Information

Ordering Code Package Code Package Description PI90LV022W W 16-pin 150-mil SOIC PI90LV022WE W Pb-free & Green, 16-pin 150-mil SOIC PI90LV022L L 16-pin 173-mil TSSOP PI90LV022LE L Pb-free & Green, 16-pin 173-mil TSSOP PI90LVB022W W 16-pin 150-mil SOIC PI90LVB022WE W Pb-free & Green, 16-pin 150-mil SOIC PI90LVB022L L 16-pin 173-mil TSSOP PI90LV0B22LE L Pb-free & Green, 16-pin 173-mil TSSOP 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