PEB24902 Просмотр технического описания (PDF) - Infineon Technologies

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PEB24902

Quad ISDN Echocancellation Circuit Analog Front End for Splitterless ADSL over ISDN

Infineon Technologies 

PEB 24902

PEF 24902

List of Figures

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Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Logic Symbol IEC-4-AFE-X Version 3.2 . . . . . . . . . . . . . . . . . . . . . . . 11

Pin Diagram IEC-4-AFE-X Version 3.2 . . . . . . . . . . . . . . . . . . . . . . . . 12

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Jitter Transfer Gain in dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Maximum Phase Difference Due to Sinusoidal Input Jitter . . . . . . . . . 22

Block Diagram of Special Functions in the IEC-4-AFE-X Version 3.2 . 30

Frame Structure on SDX and SDR in 2B1Q Mode . . . . . . . . . . . . . . . 32

Frame Structure on SDX and SDR in 4B3T Mode. . . . . . . . . . . . . . . . 33

SCI Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Power-on-Reset Behavior of the IEC-4-AFE-X after VDD Collapse . . 39

Terminating Impedance of the ADSL Port Z_ADSL-I . . . . . . . . . . . . . 41

Starpoint Hybrid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

External Circuitry - 4B3T ADSL-friendly. . . . . . . . . . . . . . . . . . . . . . . . 43

ISDN External Circuitry - 2B1Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Maximum Line Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Power Supply Blocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Boundary Scan Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

P-MQFP-64-9 HS (Plastic Metric Quad Flat Package) . . . . . . . . . . . . 51

Data Sheet

Rev. 1, 2004-05-28

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