LTC 単一5VAppleTalk トランシーバ

Transcription

1 LTC µ µ µ µ TYPICAL APPLICATI O LTC 0.µF CHARGE PMP CPEN EN EN O O 0 DO 0 V µf 0.µF µf D D = Ω TO 0Ω Ω TO 0Ω 00pF LTC TA0 -

2 LTC ABSOLTE AXI RATI GS Supply Voltage ( )... V Input Voltage Logic Inputs... 0.V to 0.V Receiver Inputs... ±V Driver Output Voltage (Forced)... ±V Driver Short-Circuit Duration... Indefinite Operating Temperature Range... 0 C to 0 C Storage Temperature Range... C to 0 C Lead Temperature (Soldering, 0 sec) C PACKAGE/ORDER I FOR ATIO C C CPEN EN EN O O DO 0 TOP VIE 0 C C V EE D D P ORDER PART NMBER LTCCG C C EN EN DO TOP VIE S PACKAGE -LEAD PLASTIC SO T JMAX = C, θ JA = C/ C C V EE 0 D D ORDER PART NMBER LTCCS G PACKAGE -LEAD PLASTIC SSOP T JMAX = 0 C, θ JA = C/ C C CPEN TOP VIE C C ORDER PART NMBER LTCCS EN 0 V EE EN O O DO 0 D D P S PACKAGE -LEAD PLASTIC SO IDE T JMAX = C, θ JA = C/ Consult factory for Industrial and Military grade parts. -

3 LTC ELECTRICAL CHARACTERISTICS = V ±0%, T A = 0 C to 0 C (Notes, ) SYMBOL PARAMETER CONDITIONS MIN TYP MAX NITS Supplies I CC Normal Operation Supply Current No Load, =, CPEN =, EN =,. ma EN = Receiver Keep-Alive Supply Current No Load, =, CPEN =, EN =, 00 µa EN = Shutdown Supply Current No Load, =, CPEN = X, EN = X, 0. 0 µa EN = V EE Negative Supply Output Voltage I LOAD 0mA (Note ),.. V = V, R L = 00Ω (Figure ), =, R = k (Figure ) f OSC Charge Pump Oscillator Frequency 00 khz Differential Driver V OD Differential Output Voltage No Load ± V R L = 00Ω (Figure ) ± V OD Change in Magnitude of Differential R L = 00Ω (Figure ) 0. V Output Voltage Differential Driver V OC Differential Common-Mode R L = 00Ω V Output Voltage V OS Single-Ended Output Voltage No Load ±.0 V R L = k to ±. V V CMR Common-Mode Range = or CPEN = or Power Off ±0 V I SS Short-Circuit Current V V O V 0 00 ma I OZ Three-State Output Current = or CPEN = or Power Off, ± ±00 µa V O Single-Ended Driver (Note ) V OS Single-Ended Output Voltage No Load ±. V R L = k to ±. V V CMR Common-Mode Range = or CPEN = or EN = ±0 V or Power Off I SS Short-Circuit Current V V O V 0 00 ma I OZ Three-State Output Current = or CPEN = or EN = ± ±00 µa or Power Off, V O Receivers R IN Input Resistance V V IN V kω Differential Receiver Threshold Voltage V V CM V mv Differential Receiver Input Hysteresis V V CM V 0 mv Single-Ended Input, Low Voltage (Note ) 0. V Single-Ended Input, High Voltage (Note ) V Output High Voltage I O = ma. V Output Low Voltage I O = ma 0. V I SS Output Short-Circuit Current V V O V ma I OZ Output Three-State Current V V O V, EN = ± ±00 µa -

4 LTC ELECTRICAL CHARACTERISTICS = V ±0%, T A = 0 C to 0 C (Notes and ) SYMBOL PARAMETER CONDITIONS MIN TYP MAX NITS Logic Inputs V IH Input High Voltage All Logic Input Pins.0 V V IL Input Low Voltage All Logic Input Pins 0. V I C Input Current All Logic Input Pins ±.0 ±0 µa Switching Characteristics t PLH, t PHL Differential Driver Propagation Delay R L = 00Ω, C L = 00pF (Figures, ) 0 0 ns Differential Driver Propagation Delay R L = k, C L = 00pF (Figures, ) 0 0 ns with Single-Ended Load Single-Ended Driver Propagation Delay R L = k, C L = 00pF, (Figures, 0) (Note ) 0 0 ns Differential Receiver Propagation Delay C L = pf (Figures, ) 0 0 ns Single-Ended Receiver C L = pf (Figures, ) (Note ) 0 0 ns Propagation Delay Inverting Receiver Propagation Delay C L = pf (Figures, ) (Note ) 0 00 ns in Keep-Alive Mode, =, CPEN = t SKE Differential Driver Output to Output R L = 00Ω, C L = 00pF (Figures, ) 0 0 ns t r, t f Differential Driver Rise/Fall Time R L = 00Ω, C L = 00pF (Figures, ) 0 0 ns Differential Driver Rise/Fall Time R L = k, C L = 00pF (Figures, ) 0 0 ns with Single-Ended Load Single-Ended Driver Rise/Fall Time R L = k, C L = 00pF (Figures, 0) (Note ) 0 ns t HDIS, t LDIS Differential Driver Output Active C L = pf (Figures, ) 0 0 ns to Disable Any Receiver Output Active to Disable C L = pf (Figures, ) 0 00 ns t ENH, t ENL Differential Driver C L = pf (Figures, ) 0 0 ns Enable to Output Active Any Receiver, Enable to Output Active C L = pf (Figures, ) 0 00 ns V EER Supply Rise Time from Shutdown C = C = 0.µF, C VEE = µf 0. ms or Receiver Keep-Alive The denotes specifications which apply over the full operating temperature range. Note : Absolute maximum ratings are those values beyond which the life of a device may be impaired. Note : All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified. Note : All typicals are given at = V, T A = C. Note : I LOAD is an external current being sunk into the V EE pin. Note : These specifications apply to the -pin SO ide package only. -0

5 LTC TYPICAL PERFORMAE CHARACTERISTICS CHARGE PMP OTPT VOLTAGE (V) Charge Pump Output Voltage vs Load Current T A = C V S = V R L(DIFF) = 00Ω R L(SE) = k TO V = V 0 0 LOAD CRRENT (ma) 0 DIFFERENTIAL DRIVER OTPT (V) 0 0 Differential Driver Swing vs Load Resistance T A = C V S = V k k k k 0k LOAD RESISTAE (Ω) SINGLE-ENDED DRIVER OTPT (V) 0 0 Single-Ended Driver Swing vs Load Resistance T A = C V S = V k k k k 0k LOAD RESISTAE (Ω) LTC TPC0 LTC TPC0 LTC TPC0 SPPLY CRRENT (ma) Supply Current vs Temperature V S = V NO LOAD 0 0 TEMPERATRE ( C) 00 LTC TPC0 DIFFERENTIAL DRIVER OTPT (V) Differential Driver Swing vs Temperature 0 0 V S = V R L = 00Ω TEMPERATRE ( C) LTC TPC0 SINGLE-ENDED DRIVER OTPT (V) 0 0 Single-Ended Driver Swing vs Temperature V S = V R L = k TO TEMPERATRE ( C) LTC TPC0 -

6 LTC LTCCS LTCCS LTCCG C C EN EN DO CHARGE PMP C C V EE 0 D D C C CPEN EN EN O 0 0 DO µ µ CPEN CPEN CPEN µ µ EN µ CHARGE PMP C C V EE 0 D D P C C CPEN EN EN O 0 0 DO CHARGE PMP 0 C C V EE D D P EN O O CPEN -

7 LTC µ µ µ µ µ TEST CIRCITS R V C OD D L D DO R L V R OC C D L pf R L C L LTC F0 LTC F0 Figure Figure Figure R L C L LTC F0 OTPT 00Ω S O O C L S C L R L C L C L LTC F0 LTC F0 LTC F0 Figure Figure Figure SITCHI G AVEFOR S V t PLH f = MHz: t r 0ns: t f 0ns t PHL V O V O 0% 0% t r 0% V DIFF = V( ) V( ) / V O 0% t f 0% 0% V O t SKE t SKE LTC F0 Figure. Differential Driver -

8 LTC SITCHI G AVEFOR S V EN f = MHz: t r 0ns: t f 0ns V, t ZL.V OTPT NORMALLY LO tlz 0.V, t ZH t OTPT NORMALLY HIGH HZ.V Figure. Differential Driver Enable and Disable 0.V LTC F0 V t PHL f = MHz: t r 0ns: t f 0ns t PLH 0% t r 0% 0% Figure. Differential Driver ith Single-Ended Load t f 0% LTC F0 V f = MHz: t r 0ns: t f 0ns t PHL t PLH 0% 0% 0% 0% LTC F0 t r Figure 0. Single-Ended Driver t r (D ) (D ) V OD f = MHz: t r 0ns: t f 0ns V OD t PLH t PHL DO Figure. Differential Receiver LTC F -

9 LTC SITCHI G AVEFOR S V IH, f = MHz: t r 0ns: t f 0ns V IL t PHL 0.V t PLH.V V IH V V Figure. Single-Ended Receiver LTC F EN f = MHz: t r 0ns: t f 0ns V t ZL t LZ O, O, DO.V OTPT NORMALLY LO 0.V t ZH OTPT NORMALLY HIGH t HZ 0.V O, O, DO.V LTC F Figure. Receiver Enable and Disable µ µ -

10 LTC µf = V LTC.µF EXTERNAL CHIP V EE.V V EE.V I VEE 0mA Figure I VEE C LTC F µ CPEN µ µ µ µ µ µ -

11 LTC µ µf = V LTC EXTERNAL CHIP C Ω TO 0Ω Ω TO 0Ω FERRITE BEAD FERRITE BEAD 00pF 00pF 00pF (a) (b) (c) LTC F V EE.µF.V V EE.V I VEE 0mA I VEE LTC F Figure. EMI Filters Figure TYPICAL APPLICATIONS Typical LocalTalk Connection V µf 0.µF DATA IN TX ENABLE ENABLE DATA OT CHARGE PMP LTCCS TX 0 0.µF 00pF 00pF 00pF µf LocalTalk TRANSFORMER LTC TA0 0Ω 00pF -