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CMX625P4 Fiches technique(PDF) 6 Page - CML Microcircuits |
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CMX625P4 Fiches technique(HTML) 6 Page - CML Microcircuits |
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6 / 34 page ![]() ISDN TA POTS Interface CMX625 2001 Consumer Microcircuits Limited 6 D/625/2 1.4 External Components 16 21 20 15 19 24 14 18 23 13 17 22 1 2 3 4 5 9 6 10 7 11 8 12 IRQN TE/NTE FSC DD SA1 SA2 DCL DU SA0 RING RXO TONEFSK VBIAS TXO TXN TXON RXP DAC OUT RXN R1 C1 C2 VSS VSS VSS VSS VDD VDD VDD CMX625 DS IOM -2 Bus Interface TM R2 R3 C3 C4 Rx In VBIAS Tx In R4 R5 C5 R6 VDD R7 SPM RESET C6 Figure 2 Recommended External Components R1, R4 100kΩ C1, C2 1.0µF R2, R3 110kΩ C3 100nF R5 56kΩ C4, C5 220pF R6, R7 Note 2 C6 22nF Resistor ±1%, capacitors ±5% unless otherwise stated. Note: 1. The recommended component values, C3 to C6 and R2 to R5 and tolerances are essential to meet the ITU-T Recommendation G.172 filter specification. See figure 12. 2. R6, R7 = 750 Ω with 5V supply. R6, R7 = 470Ω with 3.3V supply. |
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