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TEA1083A Fiches technique(PDF) 11 Page - NXP Semiconductors |
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TEA1083A Fiches technique(HTML) 11 Page - NXP Semiconductors |
11 / 20 page March 1994 11 Philips Semiconductors Product specification Call progress monitor for line powered telephone sets TEA1083; TEA1083A Notes to figure 10 1. ISUP =IIN − ITR 2. 3. 4. The pin numbers in parenthesis refer to the TEA1083A/AT 5. LSE has to be HIGH to measure the voltage gain 6. PD has to be HIGH to measure in PD conditions 7. The pins not shown in the TEA1060 are left open-circuit 8. An impedance in series with pin SUP (e.g. an ammeter) should be avoided as it interferes with the values of ITR and ISUP. LSE input VIL LOW level input voltage 0 − 0.3 V VIH HIGH level input voltage 1.5 − VBB V II Input current LSE = HIGH − 510 µA ∆G Reduction of gain from LSI1/LSI2 to QLS LSE = LOW 60 80 − dB SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Fig.10 Test circuit. handbook, full pagewidth MGR054 TEA1060 VCC VCC VCC VLSI LN VEE SLPE REG STAB MIC + GAS1 MIC − 7 2 GAS2 3 QR + 5 GAR 6 8 C3 4.7 µF C21 220 µF C20 470 µF C1 100 µF R5 3.6 k Ω RLS 50 Ω R1 620 Ω R20 150 Ω R9 20 Ω 16 9 10 1 15 TEA1083 (TEA1083A) VBB SREF VSS LSE QLS 7 (15) (13) 6 PD (12) LSI1 (8) 4 LSI2 (9) 5 1 (1) 8 (16) 3 (4) SUP 2 (2) 18 ITR Iin Iline ICC A VSUP VSUP − VSREF ISUP IBB VO VBB G v 20 log V o V LSI ----------- = I TR V SUP SREF – R20 ------------------------------- = |
Numéro de pièce similaire - TEA1083A |
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Description similaire - TEA1083A |
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