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SC3048B PDF预览

SC3048B

更新时间： 2024-01-22 05:18:34
品牌 Logo 应用领域
RFM 振荡器时钟
页数 文件大小 规格书
2页 128K
描述
444.0 MHz Differential Sine-Wave Clock

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SC3048B 技术参数

是否Rohs认证：符合生命周期：Obsolete
包装说明：DILCC8,.38Reach Compliance Code：compliant
Factory Lead Time：16 weeks风险等级：5
Is Samacsys：N其他特性：ENABLE/DISABLE FUNCTION
频率容差：200 ppm安装特点：SURFACE MOUNT
端子数量：8标称工作频率：444 MHz
最高工作温度：70 °C最低工作温度：
振荡器类型：SAW OSCILLATOR封装主体材料：CERAMIC
封装等效代码：DILCC8,.38物理尺寸：13.97mm x 9.66mm x 2.05mm
电源：3.3 V认证状态：Not Qualified
子类别：Other Oscillators最大压摆率：40 mA
最大供电电压：3.47 V最小供电电压：3.13 V
标称供电电压：3.3 V表面贴装：YES
Base Number Matches：1

SC3048B 数据手册

 浏览型号SC3048B的Datasheet PDF文件第2页 
SC3048B  
•
•
•
•
•
Quartz SAW Frequency Stability  
Fundamental Fixed Frequency  
444.0 MHz  
Differential  
Sine-Wave  
Clock  
Excellent Jitter and Symmetry  
Rugged, Miniature, Surface-Mount Case  
Low-Voltage Power Supply (3.3 VDC)  
This digital clock is designed for use in critical timing applications. Fundamental-mode oscillation is made pos-  
sible by surface-acoustic-wave (SAW) technology. The design results in low jitter, compact size, and low pow-  
er consumption. Differential outputs provide a sine wave that is made to drive 50 W loads.  
Absolute Maximum Rating  
Value  
Units  
VDC  
VDC  
°C  
Power Supply Voltage (V at Terminal 1)  
0 to +4.0  
0 to +4.0  
-40 to +85  
CC  
Input Voltage (ENABLE at Terminal 8)  
Case Temperature (Powered or Storage)  
SMC-8 Case  
Electrical Characteristics  
Characteristic  
Sym  
Notes  
Minimum  
Typical  
Maximum  
Units  
Output Frequency  
Absolute Frequency  
f
443.911  
444.089  
MHz  
ppm  
O
1, 2  
Tolerance from 444.000 MHz  
Voltage into 50W (VSWR £ 1.2)  
Operating Load VSWR  
Symmetry  
Df  
±200  
4.5  
2:1  
51  
O
V
0.5  
49  
Q and Q Output  
O
dBm  
1, 3  
3, 4, 5  
3, 4, 6  
%
Harmonic Spurious  
-30  
-60  
30  
dBc  
dBc  
Nonharmonic Spurious  
No Noise on V  
3, 4, 6, 7  
3, 4, 7, 8  
3, 9  
15  
ps  
Q and Q Period Jitter  
Output (Disabled)  
CC  
P-P  
200 mV  
from 1 MHz to ½ f on  
35  
ps  
P-P  
O
P-P  
Amplitude into 50 W  
75  
mV  
P-P  
100  
KW  
3
Output DC Resistance (between Q & Q)  
ENABLE (Terminal 14)  
Input HIGH Voltage  
V
V
-0.1  
V
V +0.1  
CC  
V
V
IH  
CC  
CC  
Input LOW Voltage  
Input HIGH Current  
Input LOW Current  
Propagation Delay  
Operating Voltage  
Operating Current  
V
I
0.0  
0.20  
5
IL  
3
mA  
mA  
ms  
VDC  
mA  
°C  
3, 9  
IH  
I
-1  
IL  
t
1
PD  
DC Power Supply  
V
I
+3.13  
0
+3.30  
18  
+3.47  
40  
CC  
1, 3  
1, 3  
CC  
Operating Ambient Temperature  
T
+70  
A
Lid Symbolization (YY = Year, WW = Week)  
RFM SC3048B 444.00 MHz YYWW  
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.  
NOTES:  
1.  
Unless otherwise noted, all specifications include any combination of load 6.  
VSWR, VCC, and TA. In addition, Q and Q are terminated into 50 W loads to  
ground. (See: Typical Test Circuit.)  
Jitter and other spurious outputs induced by externally generated electrical noise  
on VCC or mechanical vibration are not included. Dedicated external voltage  
regulation and careful PCB layout are recommended for optimum performance.  
Applies to period jitter of Q and Q. Measurements are made with the Tektronix  
CSA803 signal analyzer with at least 1000 samples.  
Period jitter measured with a 200 mVP-P sine wave swept from 1 MHz to one-half  
of fO at the VCC power supply terminal.  
The outputs are enabled when Terminal 8 is at logic HIGH. Propagation delay is  
defined as the time from the 50% point on the rising edge of ENABLE to the 90%  
point on the rising edge of the output amplitude or as the fall time from the 50%  
point to the 10% point. (SEE: Timing Definitions.)  
2.  
3.  
4.  
5.  
One or more of the following United States patents apply: 4,616,197; 4,670,681;  
4,760,352.  
7.  
The design, manufacturing process, and specifications of this device are subject  
to change without notice.  
8.  
Only under the nominal conditions of 50 W load impedance with VSWR £ 1.2 and  
nominal power supply voltage.  
9.  
Symmetry is defined as the pulse width (in percent of total period) measured at  
the 50% points of Q or Q. (See: Timing Definitions.)  
RF Monolithics, Inc.  
RFM Europe  
Phone: (972) 233-2903  
Phone: 44 1963 251383  
Fax: (972) 387-9148  
Fax: 44 1963 251510  
E-mail: info@rfm.com  
http://www.rfm.com  
SC3048B-113000  
Page 1 of 2  
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.  
12

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