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| 型号： | SC3041B |
| 厂商： | RFM |
| 文件页数： | 1/2页 |
| 文件大小： | 0K |
| 描述： | MOD SAW FREQ CTRL 300MHZ SMC-8 |
| 标准包装： | 50 |
| 系列： | SC |
| 类型： | SO（SAW） |
| 频率： | 300MHz |
| 功能： | 三态（输出启用） |
| 输出： | 正弦波 |
| 电源电压： | 3.3V |
| 频率稳定性： | ±200ppm |
| 工作温度： | 0°C ~ 70°C |
| 电流 - 电源（最大）： | 40mA |
| 安装类型： | 表面贴装 |
| 尺寸/尺寸： | 0.530" L x 0.360" W（13.46mm x 9.14mm） |
| 高度： | 0.081"（2.05mm） |
| 封装/外壳： | 8-SMD |
| 包装： | 带卷 (TR) |
SC3041B
?
Quartz SAW Frequency Stability
?
?
?
?
?
Fundamental Fixed Frequency
Excellent Jitter and Symmetry
Rugged, Miniature, Surface-Mount Case
Low-Voltage Power Supply (3.3 VDC)
Directive 2002/95/EC (ROHS) Compliant by June, 2006
300.0 MHz
Differential
Sine-Wave
This digital clock is designed for use in abrizio’s chipset for Terabit Router applications. Fundamental-mode
oscillation is made possible by surface-acoustic-wave (SAW) technology. The design results in low jitter,
compact size, and low power consumption. Differential outputs provide a sine wave that is made to drive 50 Ω
loads.
Absolute Maximum Ratings
Clock
Rating
Power Supply Voltage (V CC at Terminal 1)
Input Voltage (ENABLE at Terminal 8)
Case Temperature (Powered or Storage)
Value
0 to +4.0
0 to +4.0
-40 to +85
Units
VDC
VDC
°C
SMC-8 Case
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Output Frequency
Q and Q Output
Q and Q Period Jitter
Absolute Frequency
Tolerance from 286.0 MHz
Voltage into 50 Ω (VSWR ≤ 1.2)
Operating Load VSWR
Symmetry
Harmonic Spurious
Nonharmonic Spurious
No Noise on V CC
f O
Δ f O
V O
1, 2
1, 3
3, 4, 5
3, 4, 6
3, 4, 6, 7
299.940
0.5
49
-25
15
300.060
±200
4.5
2:1
51
-20
-60
30
MHz
ppm
dBm
%
dBc
dBc
ps P-P
200 mV P-P from 1 MHz to ? f O on
3, 4, 7, 8
35
ps P-P
Output (Disabled)
Amplitude into 50 Ω
3, 9
75
mV P-P
Output DC Resistance (between Q & Q)
3
100
K Ω
ENABLE (Terminal 14) Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
Propagation Delay
V IH
V IL
I IH
I IL
t PD
3, 9
V CC -0.1
0.0
V CC
3
V CC +0.1
0.20
5
-1
1
V
V
mA
mA
ms
DC Power Supply
Operating Voltage
Operating Current
V CC
I CC
1, 3
+3.13
+3.30
18
+3.47
40
VDC
mA
Operating Ambient Temperature
T A
1, 3
0
+70
°C
Lid Symbolization (YY = Year, WW = Week)
RFM SC3041B 300.00 MHz YYWW
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
NOTES:
1.
2.
3.
4.
5.
6.
Unless otherwise noted, all specifications include any combination of
load VSWR, VCC, and TA. In addition, Q and Q are terminated into
50 Ω loads to ground. (See: Typical Test Circuit.)
One or more of the following United States patents apply: 4,616,197;
4,670,681; 4,760,352.
The design, manufacturing process, and specifications of this device
are subject to change without notice.
Only under the nominal conditions of 50 Ω load impedance with
VSWR ≤ 1.2 and nominal power supply voltage.
Symmetry is defined as the pulse width (in percent of total period)
measured at the 50% points of Q or Q. (See: Timing Definitions.)
Jitter and other spurious outputs induced by externally generated
7.
8.
9.
electrical noise on V CC 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 mV P-P sine wave swept from 1 MHz
to one-half of f O at the V CC 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.)
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 1 of 2
SC3041B - 3/27/08
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