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首页晶振官方博客低损耗的温度补偿压控晶体振荡器AST3TDA-0000-T5非常适合5G基础设施

低损耗的温度补偿压控晶体振荡器AST3TDA-0000-T5非常适合5G基础设施

来源：http://konuaer.com 作者：vius 2022年10月19

低损耗的温度补偿压控晶体振荡器AST3TDA-0000-T5非常适合5G基础设施，Abracon meets these requirements by supporting the release of Qualcomm’s Open RAN Platform for

Small Cells, denoted as FSM100xx and FSM200xx, with the introduction of the AST3TDA-0000-T5.

The AST3TDA-0000-T5 is a 38.400MHz temperature compensated voltage controlled crystal oscillator

(TCVCXO) and has been specifically designed for this platform and guarantees exceptional performance

under the varied conditions seen by RRUs.

The AST3TDA-0000-T5 has a tight frequency stability with a typical performance of ±200ppb and

a maximum limit of ±280ppb for the wide array of operating temperatures ranges that the RRUs are

expected to face.

The phase noise performance of the TCVCXO is well suited for the Small Cell Platform as its worst case

rms phase jitter is specified at 100fs where the typical performance is 50fs, easily supporting the IEEE

1588 PTP.

It is crucial that the frequency pull is monotonic ensuring a reliable frequency lock within the Small

Cell Platform and the AST3TDA-0000-T5 does just that. The frequency pull rage typically

performs at ±7ppm and is specified at ±5ppm minimum.

In an effort to minimize synchronization misalignment and maintain a consistent reference across the

5G infrastructure, putting focus on the timing and synchronization aspects of the architecture will be

well rewarded. Each stage of the architecture needs some resilience with respect to unpredictable

environmental conditions and network failures. The most vulnerable failure points of the network

are the RRUs while also being the most sought-after component to add for 5G. Abracon helps

ensure that the stringent timing requirements of 5G are met with the introduction of the AST3TDA0000-T5 at the RRUs.

低损耗的温度补偿压控晶体振荡器AST3TDA-0000-T5非常适合5G基础设施，ABRACON晶振通过支持Qualcomm的开放RAN平台的发布来满足这些要求小细胞，标记为FSM100xx和FSM200xx，引入了AST3TDA-0000-T5。AST3TDA-0000-T5是一个38.400MHz的温度补偿压控晶体振荡器(TCVCXO)，并专门为该平台设计，保证了卓越的性能在RRUs看到的不同条件下。

AST3TDA-0000-T5具有紧密的频率稳定性，典型性能为±200ppb和对于RRUs所处的各种操作温度范围，最大限制为±280ppb将脸。

TCVCXO有源晶振的相位噪声性能非常适合小单元平台作为其最坏的情况rms相位抖动指定为100fs，其中典型性能为50fs，很容易支持IEEE 1588元。

至关重要的是，频率拉是单调的，以确保可靠的频率锁在小细胞平台和AST3TDA-0000-T5就是这样做的。典型的频率拉怒执行在±7ppm和指定在±5ppm的最小值。

Manufacturer Part Number	Manufacturer品牌	欧美晶振	Type 类型	Frequency 频率	Voltage - Supply电压	Operating Temperature 工作温度
ACOL-18.432MHZ-EK	Abracon晶振	ACOL	XO (Standard)	18.432MHz	3.3V	-20°C ~ 70°C
ACOL-20.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	20MHz	3.3V	-20°C ~ 70°C
ACOL-24.576MHZ-EK	Abracon晶振	ACOL	XO (Standard)	24.576MHz	3.3V	-20°C ~ 70°C
ACOL-25.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	25MHz	3.3V	-20°C ~ 70°C
ACOL-27.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	27MHz	3.3V	-20°C ~ 70°C
ACOL-32.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	32MHz	3.3V	-20°C ~ 70°C
ACOL-32.768MHZ-EK	Abracon晶振	ACOL	XO (Standard)	32.768MHz	3.3V	-20°C ~ 70°C
ACOL-3.6864MHZ-EK	Abracon晶振	ACOL	XO (Standard)	3.6864MHz	3.3V	-20°C ~ 70°C
ACOL-40.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	40MHz	3.3V	-20°C ~ 70°C
ACOL-48.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	48MHz	3.3V	-20°C ~ 70°C
ACOL-4.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	4MHz	3.3V	-20°C ~ 70°C
ACOL-50.000MHZ-EK	Abracon晶振	ACOL	XO (Standard)	50MHz	3.3V	-20°C ~ 70°C

以尽量减少同步不一致和保持跨5G基础设施，将重点放在时间和同步方面的架构将是不错的回报。石英晶体振荡器体系结构的每个阶段都需要一些针对不可预测的弹性环境和网络故障。网络中最脆弱的故障点是rru，同时也是5G最受欢迎的添加组件。Abracon帮助通过在RRUs引入AST3TDA0000-T5，确保5G严格的时序要求得到满足。

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