20 mhz tcxo SMD5032

Frequency: 20MHz
Frequency Tolerance: ±1ppm
Frequency Stability: ±0.28ppm
Operating Supply Voltage Range: 3.135V ~ 3.465V

20MHz 高精度 TCXO（±0.28ppm，削波正弦波，5.0x3.2mm）

产品概述

这款 20MHz TCXO 是一款高稳定度的温度补偿晶体振荡器（TCXO），专为关键任务级时序应用而设计。该器件采用坚固耐用的 5.0x3.2mm（5032）10 引脚陶瓷封装，可在 -40°C 至 +85°C 的工业级宽温范围内提供卓越的 ±0.28ppm 频率稳定度。

凭借其削波正弦波输出特性，该振荡器不仅实现了极低的功耗（仅 3.5mA），还最大程度地降低了谐波失真，使其成为 GPS/GNSS 接收机、手持式物联网（IoT）设备以及高精度实验室仪器的理想之选。

核心亮点

1. NOMINAL AND MAXIMUM RATINGS, OPERATING AND STORAGE CONDITIONS

	Parameters	Symb.	Min.	Typ.	Max.	Unit	Conditions /Remarks
1	Nominal frequency	F_N	20.000			MHz
2	Maximum supply voltage	V_Max.	-0.3		+4.0	V_DC	Between V_CC and GND
3	Operating Supply Voltage Range	V_cc	3.135	3.30	3.465	V_DC
4	Output Load Resistance	RL	9	10	11	kΩ	Clipped sine wave output
5	Output Load Capacitance	CL	9	10	11	pF	Clipped sine wave output
6	Operating Temperature Range	T_oP	-40	+25	+85	℃	Note 1
7	Storage Temperature Range	T_sT	-40		+85	℃

Note 1: over the whole range, the unit stays within all relevant parameter limits as specified under point 2

2. ELECTRICAL PARAMETER LIMITS

	Parameters	Symb.	Min.	Typ.	Max.	Unit	Conditions /Remarks
1	Frequency Tolerance	△f/F_N	-1.0		+1.0	ppm	Offset from nominal at +25°℃
2	Frequency Stability	△f/F_RFL	-0.28		+0.28	ppm	Note 1
3	Frequency VS Voltage Changes	△f/F_V	-0.1		+0.1	ppm	Vcc±5% at +25℃
4	Frequency VS Load Changes	△f/F_L	-0.1		+0.1	ppm
5	Aging 20 years	△f/F_A1	-3.0		+3.0	ppm	at +25℃
6	Output Amplitude Voltage Level	V_P-P	0.8			V_AC	Clipped sine wave
7	Output Symmetry (Duty Cycle)	DC	45		55	%	GND level (DC cut)
8	Phase Noise	L_RMS		-98		dBc/Hz	at 10Hz offset /at +25℃
				-125			at 100Hz offset/at+25℃
				-145			at 1kHz offset /at +25℃
				-150			at 10kHz offset /at +25℃
				-155			at 100KHz offset /at+25℃
9	Startup Time	t_STRT			2.0	ms	Vp-p reach > 90% of amplitude
10	Current Consumption	I_CC			3.5	mA