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| wiki:cmp:freq:start [2023/08/10 14:27] – Roman Abakumov | wiki:cmp:freq:start [2024/07/05 14:15] (текущий) – Roman Abakumov | ||
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| Строка 17: | Строка 17: | ||
| | https:// | | https:// | ||
| | http:// | | http:// | ||
| + | | https:// | ||
| + | | https:// | ||
| | SIN | Sinus | Синусоидальный | | SIN | Sinus | Синусоидальный | ||
| Строка 99: | Строка 101: | ||
| ==== RTC ==== | ==== RTC ==== | ||
| - | | https:// | + | [[.:rtc:start|RTC]] |
| - | + | ||
| - | | | RV-3032-C7 | 2.5ppm | -40+85C | 1.98$ (при заказе 3000 шт.) | | | + | |
| - | | DaPu | INS5699C | + | |
| - | | DaPu | INS5699S | + | |
| - | + | ||
| - | + | ||
| - | === PCF8523TK/ | + | |
| - | + | ||
| - | Clock operating voltage: 1.0 V to 5.5 V | + | |
| - | + | ||
| - | Vth(sw)bat is the battery switch threshold voltage. Typical value is 2.5 V. | + | |
| - | + | ||
| - | When VBAT drops below the threshold value Vth(bat)low (typically 2.5 V), the BLF flag | + | |
| - | (register Control_3) is set to indicate that the battery is low and that it must be replaced. | + | |
| - | + | ||
| - | VBAT battery supply voltage power management function active 1.8 - 5.5 V | + | |
| - | + | ||
| - | Vth(sw)bat battery switch threshold voltage 2.1 2.5 2.7 V | + | |
| Строка 143: | Строка 127: | ||
| | OCXO+GNSS | CM66 | ±30ns | | OCXO+GNSS | CM66 | ±30ns | ||
| | OCXO+1588 | CM35P | ±50ns | | OCXO+1588 | CM35P | ±50ns | ||
| + | |||
| + | ==== Jitter Attenuator ==== | ||
| + | | Si5344D | Silabs | Jitter Attenuator | | ||
| Строка 149: | Строка 136: | ||
| - | ==== IEEE1588v3 Chip ==== | + | ==== GPSDO ==== |
| - | | https:// | + | | https:// |
| + | |||
| + | ==== IEEE1588v3 Chip ==== | ||
| + | | https:// | ||
| + | | 82P33831 | ||
| + | | AU5508 | ||
| ==== Network Interface Clock Nominals ==== | ==== Network Interface Clock Nominals ==== | ||