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TSB21LV03CHV Scheda tecnica(PDF) 9 Page - Texas Instruments |
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TSB21LV03CHV Scheda tecnica(HTML) 9 Page - Texas Instruments |
9 / 29 page TSB21LV03C IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER SLLS331A – FEBRUARY 1999 – REVISED OCTOBER 1999 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions (Continued) TERMINAL NAME NO. TYPE I/O DESCRIPTION NAME HV PM TPA1+ TPA2+ TPA3+ 57 51 47 45 40 36 Cable O Portn, port cable pair A. TPAn is the port A connection to the twisted-pair cable. Board traces from these terminals should be kept matched and as short as pos TPA1– TPA2– TPA3– 56 50 46 44 39 35 Cable O Board traces from these terminals should be kept matched and as short as pos- sible to the external load resistors and to the cable connector. TPB1+ TPB2+ TPB3+ 55 49 45 43 38 34 Cable O Portn, port cable pair B. TPBn is the port B connection to the twisted-pair cable. Board traces from these terminals should be kept matched and as short as pos TPB1– TPB2– TPB3– 54 48 44 42 37 33 Cable O Board traces from these terminals should be kept matched and as short as pos- sible to the external load resistors and to the cable connector. TPBIAS1 TPBIAS2 TPBIAS3 58 59 60 46 47 48 Cable O Portn, twisted-pair bias. TPBIASn provides the 1.86-V nominal bias voltage needed for proper operation of the twisted-pair cable drivers and receivers and for sending a valid cable connection signal to the remote nodes. VDD–5V 13 4 Supply — 5-V VDDsupply.VDD–5VshouldbeconnectedtotheLLCVDDsupplywhena5-V LLC is connected to the phy, and it should be connected to the phy DVDD when a 3-V LLC is used. XI XO 68 1 56 57 — — Crystal oscillator. XO and XI connect to a 24.576-MHz parallel resonant funda- mental mode crystal. Although, when a 24.576-MHz crystal oscillator is used, it can be connected to XI with XO left unconnected. The optimum values for the external shunt capacitors are dependent on the specifications of the crystal used. See application note on crystal oscillator. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VDD – 0.3 V to 4 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range, VI – 0.5 V to VDD+0.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage range at any output, VO – 0.5 V to VDD+0.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous total power dissipation See Dissipation Rating Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature, TA, TSB21LV03C 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB21LV03CI – 40 °C to 85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB21LV03CM – 55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Junction temperature, TJ, PM package 150 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HV package 165 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 220 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † 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. DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR‡ ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING TA = 125°C POWER RATING PM 1866 mW 14.9 mW/ _C 1194 mW 972 mW — HV 2943 mW 21.02 mW/ _C 1997 mW 1681 mW 841 mW ‡ This is the inverse of the traditional junction-to-ambient thermal resistance (RθJA) and uses a board-mounted 67°C/W for PM package and 47.57 °C/W for HV package. |
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