高可靠性能的石英晶體諧振器是調制解調器的理想選擇ABM8-16.000MHZ-7-1-U-T,有兩種方法來為系統計時:使用一個完全集成的晶體振蕩器,或配合SMD晶振直接用片上振蕩器。使用XO往往會增加功耗和系統成本。通過將石英晶體與單片機內部的嵌入式皮爾斯振蕩器電路配合使用,降低了系統功耗和成本。大多數嵌入式振蕩器電路使用皮爾斯振蕩器,這是一種配置,包括一個簡單的逆變放大器作為回路內的逆變增益元件。
在大多數情況下,放大器單元是在MCU內部,而頻率選擇網絡是在MCU外部。外部網絡的關鍵部件是石英晶體。還使用了相關的回路電容和串聯(限流)電阻(Rs)。
Manufacturer Part Number 原廠編碼 | Manufacturer廠家 | Series型號 | Type 系列 | Frequency頻率 | Package / Case包裝/封裝 |
ABLS-37.500MHZ-12-1-U-F-T | Abracon晶振 | ABLS | MHz Crystal | 37.5MHz | HC49/US |
ABSM2-16.9344MHZ-4-T | Abracon晶振 | ABSM2 | MHz Crystal | 16.9344MHz | 4-SOJ, 9.40mm pitch |
ABM10-40.000MHZ-E20-T | Abracon晶振 | ABM10 | MHz Crystal | 40MHz | 4-SMD, No Lead |
ABM8-36.000MHZ-10-1-U-T | Abracon晶振 | ABM8 | MHz Crystal | 36MHz | 4-SMD, No Lead |
ABM8-16.384MHZ-10-1-U-T | Abracon晶振 | ABM8 | MHz Crystal | 16.384MHz | 4-SMD, No Lead |
ABLS7M2-12.000MHZ-D-2Y-T | Abracon晶振 | ABLS7M2 | MHz Crystal | 12MHz | 2-SMD, Flat Lead |
ABLS7M2-14.7456MHZ-D-2Y-T | Abracon晶振 | ABLS7M2 | MHz Crystal | 14.7456MHz | 2-SMD, Flat Lead |
ABM8-16.000MHZ-7-1-U-T | Abracon晶振 | ABM8 | MHz Crystal | 16MHz | 4-SMD, No Lead |
ABM8-25.000MHZ-D2Y-T | Abracon晶振 | ABM8 | MHz Crystal | 25MHz | 4-SMD, No Lead |
ABLS-19.6608MHZ-B2-T | Abracon晶振 | ABLS | MHz Crystal | 19.6608MHz | HC49/US |
ABLS-48.000MHZ-B2-T | Abracon晶振 | ABLS | MHz Crystal | 48MHz | HC49/US |
ABLS3-6.144MHZ-D4Y-T | Abracon晶振 | ABLS3 | MHz Crystal | 6.144MHz | HC49/US |
ABLS3-30.000MHZ-D4YF-T | Abracon晶振 | ABLS3 | MHz Crystal | 30MHz | HC49/US |
ABL-22.1184MHZ-B2 | Abracon晶振 | ABL | MHz Crystal | 22.1184MHz | HC49/US |
ABLSG-4.500MHZ-D2Y-T | Abracon晶振 | ABLSG | MHz Crystal | 4.5MHz | HC49/US - 3 Lead |
ABLSG-12.288MHZ-D2Y-T | Abracon晶振 | ABLSG | MHz Crystal | 12.288MHz | HC49/US - 3 Lead |
ABLSG-13.500MHZ-D2Y-T | Abracon晶振 | ABLSG | MHz Crystal | 13.5MHz | HC49/US - 3 Lead |
Abracon推出的ABM8-16.000MHZ-7-1-U-T,石英晶體諧振器,接縫密封包裝,確保高可靠性,可提供緊密的公差和穩定性,適用于RoHS回流,應用:高密度應用,調制解調器,通信和測試設備,無線應用。
There are two ways to clock a system: use a fully integrated crystal oscillator, or mate the crystal directly with the on-chip oscillator. Using an XO tends to increase power consumption and system costs. By mating a quartz crystal with the embedded Pierce oscillator circuit inside the MCU, system power consumption and costs are reduced. The majority of embedded oscillator circuits use the Pierce oscillator, a configuration which comprises of a simple inverter amplifier as the inverting gain element within the loop.
Quartz Crystals used in this approach are coined as Parallel Plated Crystals, with standard values such as 10pF, 12pF, 18pF, etc. This implies that the final oscillation frequency will be within the tolerance of the standalone quartz crystal when the closed-loop effective capacitance is exactly equal to the quartz plating capacitance.