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 ±6mÀ, 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 input output L X Z H VID≥VTH (max) H H VID≤VTH (max) L H Open * 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 ¹ of pin Symbol 01 02 A1 A2 A En A/C 03 04 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. 12 C C2 C1 GND D1 D2 D En B/D 13 B 14 B2 2 Input of receiver C 15 B1 1 Input of receiver C 16 VCC 05 06 07 08 09 10 11 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 01 16 VDD X2 02 15 X3 Y2 03 14 B X1 04 13 Z3 Y1 05 12 Z2 X0 06 11 Z1 Y0 07 10 Z0 VSS 08 09 A Figure 2 Designation of pins in package 2 IL34C86 Figure 3. Block diagram of microcircuit. GND Vcc IN A2 IN A1 IN C2 + - + Output A IN C1 Enable Enable IN B2 - IN B1 - + Output C IN D2 IN D1 - + 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 mÀ transition time when tr, tf — 500 — — nñ switching in, switching off on input Enable Dissapated DIP PD — — — 1645* mW power SO — — — 1190* Operation temperature TA -40 +85 — — °Ñ Storage temperature TSTG — — -65 +150 Temperature of TL — — — 260 soldering, 4ñ * - at increasing temperature higher than 25°Ñ PD decreased on 13.89mW/°C for DIP package and on 9.80mW/°C for SO package. 3 IL34C86 T= -400 ÷ +850C Table 2 -Electric parameters parameter Minimum differential input voltage input resistance input current symbol conditions of measurement VTH -7V < VCm < +7V RIN IIN standard units of measure ment min -200 max. 200 mV VIN = -7V, +7V (the rest inputs on "ground") 5.0 10 kÎhm VIN = -10V (the rest inputs on"ground”) VIN = +10V (the rest inputs on "ground") — +1.5 mÀ — -2.5 minimum output voltage of high level VOH VCC = 4.5V, VDIFF = +1V, IOUT = -6.0hmÀ 3.8 — maximum output voltage of low level VOL VCC = 5.5V, VDIFF = -1V, IOUT = +6.0hmÀ — 0.3 minimum input voltage of high level on input Enable VIH — 2.0 — maximum input voltage of low level on input Enable VIL — — 0.8 maximum output current of the third state IOZ VOUT = VCC or 0V — ±0.5 µÀ maximum input current on input Enable II VIN = VCC or 0V — ±1.0 µÀ consumption current ICC VCC = 5.5V, VDIFF = +1V — 23 mÀ time of propagation delay at switching off, switching on tPLH, tPHL CL = 50pF, VDIFF = 2.5V, VCm = 0V — 30 nñ Transition time when switching in, switching off tRISE, tFALL CL = 50pF, VDIFF = 2.5V, VCm = 0V — 9 time of the third state propagation delay on input Enable tPLZ, tPHZ CL = 50pF, VDIFF = 2.5V, RL = 1000kÎhm — 18 time of the third state propagation delay on input Enable tPZL, tPZH CL = 50pF, VDIFF = 2.5V, RL = 1000kÎhm — 21 4 V V IL34C86 Figure 4 – Time diagram of signals at changing dynamic parameters tPLH, tPHL, tTLH, tTHL, tPZH, tPHZ, tPZL, tPLZ V- Input +2.5 V 0V V+ Input = 0 V -2.5 V t PHL t PLH 90 % 90 % VOH 50 % Output 10 % 10 % t TLH . 5 t THL VOL