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HC55140IBZ Datasheet(PDF) 7 Page - Intersil Corporation |
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HC55140IBZ Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 36 page FIGURE 4. LONGITUDINAL TO METALLIC AND LONGITUDINAL TO 4-WIRE BALANCE FIGURE 5. METALLIC TO LONGITUDINAL AND 4-WIRE TO LONGITUDINAL BALANCE 2-Wire Return Loss Forward and Reverse 0.2kHz to 1.0kHz (Note 12, Figure 6) 30 35 - dB Forward Only • Forward Only ••• 1.0kHz to 3kHz (Note 12, Figure 6) 23 25 - dB 3kHz to 3.4kHz (Note 12, Figure 6) 21 23 - dB TIP IDLE VOLTAGE (User Programmable) TIPX Idle Voltage Active, IL < 5mA -2.6 -2.2 -1.8 V Forward Only • Forward Only ••• Forward and Reverse RING IDLE VOLTAGE (User Programmable) RINGX Idle Voltage Forward and Reverse Active, IL < 5mA -46.4 -45.3 -44.2 V Forward Only • Forward Only ••• Tip open, IL < 5mA -46.4 -45.3 -44.2 V VTR Forward and Reverse Active, IL < 5mA 41 43.1 45 V Forward Only • Forward Only ••• VTR(ROH) Pulse Metering Forward and Reverse Active, IL≥ 8.5mA, ROH = 50kΩ 36 38.1 - V NA • NA NA •• FIGURE 6. TWO-WIRE RETURN LOSS FIGURE 7. OVERLOAD LEVEL (4-WIRE TRANSMIT PORT), OUTPUT OFFSET VOLTAGE AND HARMONIC DISTORTION Electrical Specifications TA = -40°C to 85°C, VCC = +5V ±5%, VBH = -48V, VBL = -24V, PTG = Open, RP1 = RP2 = 0Ω, ZT = 120kΩ, RLIM = 38.3kΩ, RD = 50kΩ, RDC_RAC = 20kΩ, ROH = 40kΩ, CH = 0.1µF, CDC = 4.7µF, CRT/REV = 0.47µF, GND = 0V, RL = 600Ω. Unless Otherwise Specified. (•) Symbol used to indicate the test applies to the part. (NA) symbol used to indicate the test does not apply to the part. (Continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS HC55120 HC55121 HC55130/1 HC55140/1 HC55142/3 HC55150/1 EL VTR C RLT RLR 2.16 µF TIP RING VTX VRX VTX ETR VL C RLT RLR 300 Ω 300 Ω 2.16 µF TIP RING VTX VRX ERX VS ZD RLR R R ZIN VM TIP RING VTX VRX EG RL ZL VTR TIP RING VTX VRX VTX 600 Ω |
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