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DS3101 Datasheet(PDF) 44 Page - Dallas Semiconductor |
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DS3101 Datasheet(HTML) 44 Page - Dallas Semiconductor |
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44 / 149 page ![]() DS3101 Stratum 3/3E Timing Card IC 44 of 149 Table 7-12. OC1 to OC7 Output Frequency Selection FREQUENCY REGISTER VALUE (1) OC1 OC2 OC3 OC4 OC5 OC6 OC7 0000 Disabled Disabled Disabled Disabled Disabled Disabled Disabled 0001 2kHz 2kHz 2kHz 2kHz 2kHz 2kHz 2kHz 0010 8kHz 8kHz 8kHz 8kHz 8kHz 8kHz 8kHz 0011 Digital2 Digital2 Digital2 Digital2 Digital2 T0 APLL/2 Digital2 0100 Digital1 Digital1 Digital1 Digital1 Digital1 Digital1 T0 APLL/2 0101 T0 APLL/48 T0 APLL/48 T0 APLL/48 T0 APLL/48 T0 APLL/48 T0 APLL/1 T0 APLL/48 0110 T0 APLL/16 T0 APLL/16 T0 APLL/16 T0 APLL/16 T0 APLL/16 T0 APLL/16 T0 APLL/16 0111 T0 APLL/12 T0 APLL/12 T0 APLL/12 T0 APLL/12 T0 APLL/12 T0 APLL/12 T0 APLL/12 1000 T0 APLL/8 T0 APLL/8 T0 APLL/8 T0 APLL/8 T0 APLL/8 T0 APLL/8 T0 APLL/8 1001 T0 APLL/6 T0 APLL/6 T0 APLL/6 T0 APLL/6 T0 APLL/6 T0 APLL/6 T0 APLL/6 1010 T0 APLL/4 T0 APLL/4 T0 APLL/4 T0 APLL/4 T0 APLL/4 T0 APLL/4 T0 APLL/4 1011 T4 APLL/64 T4 APLL/64 T4 APLL/64 T4 APLL/2 T4 APLL/2 T4 APLL/64 T4 APLL/64 1100 T4 APLL/48 T4 APLL/48 T4 APLL/48 T4 APLL/48 T4 APLL/48 T4 APLL/48 T4 APLL/48 1101 T4 APLL/16 T4 APLL/16 T4 APLL/16 T4 APLL/16 T4 APLL/16 T4 APLL/16 T4 APLL/16 1110 T4 APLL/8 T4 APLL/8 T4 APLL/8 T4 APLL/8 T4 APLL/8 T4 APLL/8 T4 APLL/8 1111 T4 APLL/4 T4 APLL/4 T4 APLL/4 T4 APLL/4 T4 APLL/4 T4 APLL/4 T4 APLL/4 Note 1: The value of the OFREQn field (in the OCR1 through OCR4 registers) corresponding to output clock OCn. Table 7-13. Possible Frequencies for OC1 to OC7 JITTER (TYP) FREQUENCY (MHz) T0 DPLL MODE T4 DPLL MODE T4 APLL SOURCE OFREQN SETTING RMS (ps) pk-pk (ns) 2kHz 77.76MHz, analog — — 0001 60 0.6 2kHz Any digital feedback 0001 1400 5.0 8kHz 77.76MHz, analog 0010 60 0.6 8kHz Any digital feedback 0010 1400 5.0 1.536 Not OC4 or OC5 12 x E1 T4 DPLL 1011 55 0.6 1.536 Not OC4 or OC5 T0 12 x E1 1011 250 1.5 1.544 Via Digital1, not OC7 77.76MHz, analog 0100 3800 13 1.544 Via Digital2, not OC6 77.76MHz, analog 0011 3800 13 1.544 Via Digital1, not OC7 Any digital feedback 0100 3800 18 1.544 Via Digital2, not OC6 Any digital feedback 0011 3800 18 1.544 Not OC4 or OC5 16 x DS1 T4 DPLL 1011 140 1.2 1.544 Not OC4 or OC5 T0 16 x DS1 1011 275 1.9 1.578 Not OC4 or OC5 4 x 6312kHz T4 DPLL 1011 240 1.5 1.578 Not OC4 or OC5 T0 4x6312kHz 1011 260 1.8 2.048 Not OC6 12 x E1 mode 0101 425 2.6 2.048 Via Digital1, not OC7 77.76MHz, analog 0100 3800 13 2.048 Via Digital2, not OC6 77.76MHz, analog 0011 3800 13 2.048 Via Digital1, not OC7 Any digital feedback 0100 3800 18 2.048 Via Digital2, not OC6 Any digital feedback 0011 3800 18 2.048 12 x E1 T4 DPLL 1100 55 0.6 2.048 T0 12 x E1 1100 250 1.5 2.048 Not OC4 or OC5 16 x E1 T4 DPLL 1011 50 0.5 2.048 Not OC4 or OC5 T0 16 x E1 1011 350 2.4 2.059 Not OC6 16 x DS1 0101 435 2.8 2.059 16 x DS1 T4 DPLL 1100 140 1.2 2.059 T0 16 x DS1 1100 275 1.9 2.104 Not OC6 4 x 6312 kHz 0101 340 2.3 2.104 4 x 6312kHz T4 DPLL 1100 240 1.8 2.104 T0 4x6312kHz 1100 260 1.8 2.316 Not OC4 or OC5 24 x DS1 T4 DPLL 1011 150 1.0 2.316 Not OC4 or OC5 T0 24 x DS1 1011 400 2.8 2.731 Not OC6 16 x E1 0101 380 2.6 2.731 16 x E1 T4 DPLL 1100 50 0.5 2.731 T0 16 x E1 1100 350 2.4 |
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