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| IL34C86 Differential line receiver. . Microcircuit IL34C86 consists of four differential line receivers and is a microcircuit that meets international standards of data transmission RS-422, RS-423, and it is widely used in data transmission nets, particularly in a unit for local loop of ATS. Functions implemented This device carries out comparing inputs with low differential signal of 200mV and gives on output full signal with load carrying capacity of 6mA, and also has hysteresis to improve noise margin. Designation Of microcircuit in package IL34C86N Plastic DIP IL34C86D SOIC TA from minus 40 to plus 85 C for all packages Truth table Enable L H H H input X VIDVTH (max) VIDVTH (max) Open * output Z H L H VID - difference of inputs A2-A1, or B2-B1, or C2-C1, or D2-D1. VTH - minimum differential input voltage. Open* - no signals delivered to inputs. 1 IL34C86 Purpose of pins of pin 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 Symbol A1 A2 A En A/C C C2 C1 GND D1 D2 D En B/D B B2 B1 VCC Purpose Input of receiver A Input of receiver A Output of receiver A input of switching outputs of A and C receivers into the third state Output of receiver C 2 Input of receiver C 1 Input of receiver C General pin 1 Input of receiver D. 2 Input of receiver D. Output of receiver D. input of switching outputs of B and D receivers into the third state Output of receiver B. 2 Input of receiver C 1 Input of receiver C Pin of power supply from source of voltage L - Low voltage level H - High voltage level X - any level of voltage Z - the third state of output . Y3 X2 Y2 X1 Y1 X0 Y0 VSS 01 02 03 04 05 06 07 08 16 15 14 13 12 11 10 09 VDD X3 B Z3 Z2 Z1 Z0 A Figure 2 Designation of pins in package 2 IL34C86 Figure 3. Block diagram of microcircuit. IN A2 IN A1 IN C2 IN C1 Enable Enable IN B2 IN B1 IN D2 IN D1 + - + - + - + - GND Vcc Output A Output C Output B Output D Table 1 - Limiting and extreme parameters Parameter Symbol Limiting mode Extreme mode Units of measureme nt min max min max Supply voltage VCC 4.50 5.50 -- 7 V Input voltage VCM -- -- -14 14 differential input voltage VDIFF -- -- -14 14 Voltage on input Enable VIN -- -- -- 7 Output current -- -- -- -25 +25 mA transition time when tr, tf -- 500 -- -- nn switching in, switching off on input Enable Dissapated DIP PD -- -- -- 1645* mW power SO -- -- -- 1190* Operation temperature TA -40 +85 -- -- N Storage temperature TSTG -- -- -65 +150 Temperature of TL -- -- -- 260 soldering, 4n * - at increasing temperature higher than 25N PD decreased on 13.89mW/C for DIP package and on 9.80mW/C for SO package. 3 IL34C86 Table 2 -Electric parameters parameter symbol T= -400 / +850C conditions of measurement standard min -200 5.0 -- max. 200 10 +1.5 mA -- -2.5 -- 0.3 V units of measure ment mV kIhm Minimum differential input voltage input resistance input current VTH RIN IIN -7V < VCm < +7V VIN = -7V, +7V (the rest inputs on "ground") VIN = -10V (the rest inputs on"ground") VIN = +10V (the rest inputs on "ground") VCC = 4.5V, VDIFF = +1V, IOUT = -6.0hmA VCC = 5.5V, VDIFF = -1V, IOUT = +6.0hmA -- minimum output voltage of high level maximum output voltage of low level minimum input voltage of high level on input Enable maximum input voltage of low level on input Enable maximum output current of the third state maximum input current on input Enable consumption current VOH VOL 3.8 -- VIH 2.0 -- V VIL -- -- 0.8 IOZ VOUT = VCC or 0V -- 0.5 A II VIN = VCC or 0V -- 1.0 A ICC VCC = 5.5V, VDIFF = +1V -- 23 mA time of propagation delay at switching off, switching on Transition time when switching in, switching off time of the third state propagation delay on input Enable time of the third state propagation delay on input Enable tPLH, tPHL tRISE, tFALL tPLZ, tPHZ tPZL, tPZH CL = 50pF, VDIFF = 2.5V, VCm = 0V CL = 50pF, VDIFF = 2.5V, VCm = 0V CL = 50pF, VDIFF = 2.5V, RL = 1000kIhm CL = 50pF, VDIFF = 2.5V, RL = 1000kIhm -- 30 nn -- 9 -- 18 -- 21 4 IL34C86 Figure 4 - Time diagram of signals at changing dynamic parameters tPLH, tPHL, tTLH, tTHL, tPZH, tPHZ, tPZL, tPLZ V- Input V+ Input = 0 V +2.5 V 0V -2.5 V t PLH 90 % t PHL 90 % VOH 50 % Output 10 % 10 % VOL t TLH . t THL 5 |
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