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HL7548 Datasheet(PDF) 34 Page - List of Unclassifed Manufacturers |
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HL7548 Datasheet(HTML) 34 Page - List of Unclassifed Manufacturers |
34 / 53 page 4116369 Rev 9.0 September 04, 2017 34 Product Technical Specification Detailed Interface Specifications Table 24. PCM Electrical Characteristics Signal Description Minimum Typical Maximum Unit Tsync_low + Tsync_high PCM-SYNC period 125 µs Tsync_low PCM-SYNC low time 62.5 µs Tsync_high PCM-SYNC high time 62.5 µs TCLK-cycle PCM-CLK period (T) 1.95 2.6 3.9 µs TIN-setup PCM-IN setup time 59.6 ns TIN-hold PCM-IN hold time 12 ns TOUT-delay PCM-OUT delay time 21.6 ns TSYNC-delay PCM-SYNC output delay -24 31.2 ns The following figure shows the PCM timing waveform. Figure 4. PCM Timing Waveform 3.15. Debug Interfaces The AirPrime HL7548 and HL7588 modules provide 2 interfaces for a powerful debug system. 3.15.1. Trace Debug The AirPrime HL7548 and HL7588 modules provide a Trace Debug interface, providing real-time instruction and data trace of the modem core. Table 25. Trace Debug Pad Description Pad Number Signal Name Function Multiplex 2 TRACE_DATA3 Trace data 3 8 TRACE_DATA1 Trace data 1 9 TRACE_DATA0 Trace data 0 |
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