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CX28331 датащи(PDF) 24 Page - Synaptics Incorporated. |
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CX28331 датащи(HTML) 24 Page - Synaptics Incorporated. |
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24 / 68 page ![]() 1.0 Pin Description CX28331/CX28332/CX28333 1.1 Pin Assignments Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 1-14 Conexant 100985A Table 1-2. CX2833i-3x Pin Definitions (1 of 8) Pin # Signal Name Description I/O/P Notes CX28331-3x CX28332-3x CX28333-3x Coaxial Line Pins 17 —— RLINEP Ch1 positive receive data I Differential inputs for each channel from its respective receive coax line. The RX expects balanced differential inputs, usually achieved using a 1:1 transformer. The inputs are internally DC biased to 1.9 V. — 77 RLINE1P 18 —— RLINEM Ch1 negative receive data I — 88 RLINE1M — 27 17 RLINE2P Ch2 positive receive data I — 28 18 RLINE2M Ch2 negative receive data I —— 27 RLINE3P Ch3 positive receive data I —— 28 RLINE3M Ch3 negative receive data I 12 —— TLINEP Ch1 positive transmit data O Differential, coax-driver balanced outputs for pulse-shaped AMI B3ZS/HDB3 encoded waveforms for each channel. These pins should be connected to the primary side of the 1:1 transformer through two backmatch resistors (see Appendix B). — 22 TLINE1P 13 —— TLINEM Ch1 negative transmit data O — 33 TLINE1M — 22 12 TLINE2P Ch2 positive transmit data O — 23 13 TLINE2M Ch2 negative transmit data O —— 22 TLINE3P Ch3 positive transmit data O —— 23 TLINE3M Ch3 negative transmit data O |
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