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PBL386402QNS Datasheet(PDF) 4 Page - Ericsson |
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PBL386402QNS Datasheet(HTML) 4 Page - Ericsson |
4 / 16 page PBL 386 40/2 4 Parameter fig Conditions Min Typ Max Unit Four-wire to longitudinal balance, B FLE 4 0.2 kHz < f < 3.4 kHz 40 50 dB E RX B FLE = 20 · Log V Lo Two-wire return loss, r |Z TR + ZL| r = 20 · Log |Z TR - ZL| 0.2 kHz < f < 1.0 kHz 30 35 dB 1.0 kHz < f < 3.4 kHz, Note 3 20 22 dB TIPX idle voltage, V Ti active, I L < 5 mA - 1.3 V RINGX idle voltage, V Ri active, I L < 5 mA V Bat +3.0 V tip open, I L < 5 mA V Bat +3.0 V V TR active, I L < 5 mA V Bat +4.3 V Four-wire transmit port (VTX) Overhead voltage, V TXO, IL > 18mA 5 Load impedance > 20 k Ω, 2.7 V Peak 1% THD, Note 4 On-hook, I L < 5mA 1.1 V Peak Output offset voltage, ∆V TX -100 0 100 mV Output impedance, z TX 0.2 kHz < f < 3.4 kHz 15 50 Ω Four-wire receive port (RSN) Receive summing node (RSN) DC voltage I RSN = -55 µA 1.15 1.25 1.35 V Receive summing node (RSN) impedance 0.2 kHz < f < 3.4 kHz 8 20 Ω Receive summing node (RSN) 0.3 kHz < f < 3.4 kHz current (I RSN) to metallic loop current (IL) 200 ratio gain, α RSN Frequency response Two-wire to four-wire, g 2-4 6 relative to 0 dBm, 1.0 kHz. E RX = 0 V 0.3 kHz < f < 3.4 kHz -0.20 0.10 dB f = 8.0 kHz, 12 kHz, 16 kHz -1.0 0.1 dB Figure 4. Metallic to longitudinal and four- wire to longitudinal balance 1 << 150 Ω, R LT =RLR =RL /2 =300Ω ωC R T = 120 kΩ, RRX = 60 kΩ Figure 5. Overhead voltage, V TXO, four- wire transmit port 1 << R L, RL = 600 Ω ωC R T = 120 kΩ, RRX = 60 kΩ Ref PBL 386 40/2 TIPX RINGX RSN VTX RT RRX ERX RLT C VTR RLR VLo PBL 386 40/2 TIPX RINGX RSN VTX RT RRX RL ILDC C EL VTXO |
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