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wiki:cmp:freq:start [2024/02/01 17:46] – Roman Abakumov | wiki:cmp:freq:start [2024/07/05 14:15] (текущий) – Roman Abakumov | ||
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Строка 18: | Строка 18: | ||
| http:// | | http:// | ||
| https:// | | https:// | ||
+ | | https:// | ||
| SIN | Sinus | Синусоидальный | | SIN | Sinus | Синусоидальный | ||
Строка 100: | Строка 101: | ||
==== RTC ==== | ==== RTC ==== | ||
- | | USE STM Internal RTC | https:// | + | [[.:rtc:start|RTC]] |
- | + | ||
- | | TR8804 | + | |
- | | RV-3032-C7 | + | |
- | | INS5101A | + | |
- | | INS5699C | + | |
- | | INS5699S | + | |
- | | DS1302Z | + | |
- | | DS1307ZM/ | + | |
- | | PCF8523TK/ | + | |
- | | DS3231MZ+ | + | |
- | + | ||
- | + | ||
- | === 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 149: | Строка 127: | ||
| OCXO+GNSS | CM66 | ±30ns | | OCXO+GNSS | CM66 | ±30ns | ||
| OCXO+1588 | CM35P | ±50ns | | OCXO+1588 | CM35P | ±50ns | ||
+ | |||
+ | ==== Jitter Attenuator ==== | ||
+ | | Si5344D | Silabs | Jitter Attenuator | | ||
==== Timing Server ==== | ==== Timing Server ==== | ||
| https:// | | https:// | ||
+ | |||
==== GPSDO ==== | ==== GPSDO ==== | ||
Строка 159: | Строка 141: | ||
==== IEEE1588v3 Chip ==== | ==== IEEE1588v3 Chip ==== | ||
- | | https:// | + | | https:// |
+ | | 82P33831 | ||
+ | | AU5508 | ||
==== Network Interface Clock Nominals ==== | ==== Network Interface Clock Nominals ==== |