ACT ACTR303/303.825/F-11

Tel : +44 118 979 1238
Fax : +44 118 979 1283
Email: [email protected]
The ACTR303/303.825/F-11 is a true one-port, surface-acoustic-wave (SAW) resonator in a
low-profile metal F-11 case. It provides reliable, fundamental-mode, quartz frequency
stabilization i.e. in transmitters or local oscillators operating at 303.825 MHz.
1.Package Dimension (F-11)
Pin
Configuration
1,4
Input / Output
2/3
Case Ground
Dimension
Data (unit: mm)
A
11.0±0.3
B
4.5±0.3
C
3.2±0.3
D
0.45±0.1
E
5.0±0.5
F
2.54±0.2
3.Equivalent LC Model and Test Circuit
4.Typical Application Circuits
1) Low-Power Transmitter Application
2) Local Oscillator Application
In keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice.
ISO9001: 2000 Registered - Registration number 6830/2
For quotations or further information please contact us at:
3 The Business Center, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK
http://www.actcrystals.com
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Issue : 1 C1
Date : SEPT 04
Tel : +44 118 979 1238
Fax : +44 118 979 1283
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5.Typical Frequency Response
6.Temperature Characteristics
7.Performance
7-1.Maximum Ratings
Rating
Value
Units
0
dBm
±30V
VDC
-40 to +85
°C
CW RF Power Dissipation
DC Voltage Between Terminals
Case Temperature
7-2.Electronic Characteristics
Centre Frequency
(+25°C)
Characteristic
Sym
Minimum
Absolute Frequency
fC
303.750
Tolerance from 303.825MHz
∆fC
±75
IL
1.3
Unloaded Q
QU
15,250
50 Ω Loaded Q
QL
Turnover Temperature
T0
Turnover Frequency
f0
fC
kHz
FTC
0.032
ppm/°C 2
|fA|
≤10
ppm/yr
Insertion Loss
Quality Factor
Temperature
Stability
Frequency Temperature Coefficient
Frequency Aging
Absolute Value during the First Year
DC Insulation Resistance Between Any Two Pins
Motional Resistance
RF Equivalent
RLC Model
Typical
Maximum
Units
303.900
MHz
kHz
1.8
dB
55
°C
2,100
25
1.0
MΩ
16
Motional Inductance
LM
127.6716
µH
Motional Capacitance
CM
2.1515
fF
Pin 1 to Pin 4 Static Capacitance
C0
2.1
2.4
23
Ω
RM
2.7
pF
iCAUTION: Electrostatic Sensitive Device. Observe precautions for handling!
In keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice.
ISO9001: 2000 Registered - Registration number 6830/2
For quotations or further information please contact us at:
3 The Business Center, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK
http://www.actcrystals.com
2 OF 3
Issue : 1 C1
Date : SEPT 04
Tel : +44 118 979 1238
Fax : +44 118 979 1283
Email: [email protected]
1.
2.
3.
4.
5.
6.
7.
8.
9.
The centre frequency, f C, is measured at the minimum IL point with the resonator in the 50 Ω test system.
Unless noted otherwise, case temperature T C = +25°C±2°C.
Frequency aging is the change in f C with time and is specified at +65°C or less. Aging may exceed the
specification for prolonged temperatures above +65°C. Typically, aging is greatest the first year after
manufacture, decreasing in subsequent years.
Turnover temperature, T0, is the temperature of maximum (or turnover) frequency, f 0. The nominal frequency at
2
any case temperature, TC, may be calculated from: f = f 0 [1 - FTC (T 0 - TC) ].
This equivalent RLC model approximates resonator performance near the resonant frequency and is provided
for reference only. The capacitance C 0 is the measured static (nonmotional) capacitance between Pin1 and Pin4.
The measurement includes case parasitic capacitance.
Derived mathematically from one or more of the following directly measured parameters: f C, IL, 3 dB bandwidth,
fC versus TC, and C 0.
The specifications of this device are based on the test circuit shown above and subject to change or
obsolescence without notice.
Typically, equipment utilizing this device requires emissions testing and government approval, which is the
responsibility of the equipment manufacturer.
Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications,
processes and circuits implemented within components or assemblies.
In keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice.
ISO9001: 2000 Registered - Registration number 6830/2
For quotations or further information please contact us at:
3 The Business Center, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK
http://www.actcrystals.com
3 OF 3
Issue : 1 C1
Date : SEPT 04