M2051 Integrated Circuit Systems, M2051 Datasheet
M2051
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M2051 Summary of contents
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... Pin-selectable PLL divider ratios support 64b/66b and FEC encoding/decoding ratios: • M2050: Map 10GbE to LAN, 255/238 FEC, or 255/237 FEC • M2051: De-map 10GbE LAN or 255/238 FEC to 10GbE • M2052: De-map 255/237 FEC & 255/238 FEC to 10GbE LAN ◆ Scalable dividers provide further adjustment of loop bandwidth as well as jitter tolerance ◆ ...
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Integrated Circuit Systems, Inc ESCRIPTIONS Number Name I/O Ground 10, 14, 26 GND 4 OP_IN Input 9 nOP_IN 5 nOP_OUT Output 8 OP_OUT 6 nVC Input 7 VC Power 11, 19, 33 VCC 12 ...
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... Table 3: M2050/51/52: Mfin Value LUT Note 1: For M2050 with Fvcso = 669.6429 Note 2: For M2051 and M2052 with Fvcso = 625.0000. M2050/51/52 Datasheet Rev 1 LOOP ...
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... FEC to 10GbE Table 5: M2051: De-map LUT (10GbE LAN or 255/238 FEC to 10GbE) The Mfec divider value for the first three settings allows one set of passive filter components to be used for all three of these modes. The fourth setting maps “10GbE 255/238 FEC” using the lowest Mfec value possible ...
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... Circuit Systems, Inc. dividers also control the phase detector frequency. The feedback divider (labeled “Mfin Divider”) provides the broader division options needed to accomodate various reference clock frequencies. For example, the M2051-11-625.0000 (see “Ordering on pg. 12 has a 625.00 Information” ) frequency: • ...
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Integrated Circuit Systems, Inc. forced to its upper or lower operating limit which is typically about 250 ppm above or below the VCSO center frequency (no more than 500 ppm above or below). In normal phase-locked condition, the instantaneous phase ...
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Integrated Circuit Systems, Inc. Optional Hitless Switching and Phase Build-out The M2050/51/52 is available with a Hitless Switching feature that is enabled during device manufacturing. In addition, a Phase Build-out feature is also offered. These features are offered as device ...
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... Example Loop Filter Component Values Phase Det. R Loop C Loop R Post Freq. (MHz) µF 28.0 1.0 15.0 kΩ Table 10: Example External Loop Filter Component Values for M2051-11-625.0000 1 Example Loop Filter Component Values Phase Det. R Loop C Loop R Post Freq. (MHz) µF 8.1586 51.0 1.0 33.2 kΩ Table 11: Example External Loop Filter Component Values for M2052-11-644.5313 ...
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Integrated Circuit Systems, Inc BSOLUTE AXIMUM ATINGS Symbol Parameter V Inputs I V Outputs O V Power Supply Voltage CC T Storage Temperature S Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent ...
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Integrated Circuit Systems, Inc LECTRICAL PECIFICATIONS DC Characteristics Unless stated otherwise 3.3V +5%, LVPECL outputs terminated with 50Ω Symbol Parameter Power Supply V Positive Supply Voltage CC I Power Supply Current ...
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Integrated Circuit Systems, Inc LECTRICAL PECIFICATIONS AC Characteristics Unless stated otherwise 3.3V +5%, LVPECL outputs terminated with 50Ω Symbol Parameter F Input Frequency IN F Output Frequency OUT VCSO ...
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... EADLESS HIP Standard VCSO Output Frequencies (MHz) Note *: Fout can equal Fvcso divided by 25. Order Part Number (Examples) commercial M2051 - 11 - 625.0000 M2051 - 11 I 625.0000 industrial commercial M2050 - 11 - 644.5313 M2050 - 11 I 644.5313 industrial ● ...