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TEA1064AT Datasheet(PDF) 8 Page - NXP Semiconductors |
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TEA1064AT Datasheet(HTML) 8 Page - NXP Semiconductors |
8 / 36 page March 1994 8 Philips Semiconductors Product specification Low voltage versatile telephone transmission circuit with dialler interface and transmit level dynamic limiting TEA1064A Fig.5 Maximum AC output swing on the line as a function of line current with peripheral supply current as a parameter: R15 = 0 Ω; R16 = 392 Ω. handbook, halfpage 10 6 4 2 0 20 30 MGR060 Iline (mA) VLN(p-p) (V) Ip = 0 mA 2 mA 4 mA Fig.6 Equivalent impedance between LN and VEE in the application with stabilized VLN-SLPE: R15 = 0 Ω Leq =C3 × R9 × Rp Rp =15kΩ handbook, halfpage MGR061 R9 20 Ω REG LN C3 4.7 µF Rp Vref Leq VCC1 VEE C1 R1 Fig.7 Internal reference voltage VCC2-SLPE as a function of resistor RVA(REG-SLPE) for line currents between 11 and 140 mA. In the stabilized supply application: VLN =VCC2-SLPE + ([Ip + 0.25 × 10−3 A] × R15) + ([Iline − 1.55 × 10−3 A] × R9) In the unregulated supply application (R15 = 0 Ω): VLN =VCC2-SLPE + ([Iline − 1.55 × 10−3 A] × R9) handbook, full pagewidth 7.8 3.0 080 40 120 MGR062 4.2 5.4 6.6 RVA (REG-SLPE) (kΩ) Vref (V) with RVA infinite |
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