ACT ACTQ315/315.0/F11

Tel : +44 118 979 1238
Fax : +44 118 979 1283
Email: [email protected]
The ACTQ315/315.0/F11 is a two-port, 180° 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 315.000 MHz.
1.Package Dimension (F-11)
2.
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 Centre, 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
CW RF Power Dissipation
DC Voltage Between Any Two Pins
Case Temperature
Value
Units
10
dBm
±30V
VDC
-40 to +85
°C
7-2.Electronic Characteristics
Centre Frequency
(+25 °C)
Characteristic
Sym
Minimum
Absolute Frequency
fC
314.925
Tolerance from 315.000MHz
∆fC
±75
IL
5.0
Unloaded Q
QU
15,060
50 Ω Loaded Q
QL
6,600
Turnover Temperature
T0
Insertion Loss
Quality Factor
Temperature
Stability
Frequency Aging
Turnover Frequency
25
Maximum
Units
315.075
MHz
kHz
7.0
dB
55
°C
f0
fC
kHz
Frequency Temperature Coefficient
FTC
0.032
ppm/°C 2
Absolute Value during the First Year
|fA|
≤10
ppm/yr
DC Insulation Resistance Between Any Two Pins
RF Equivalent
RLC Model
Typical
1.0
MΩ
RM
78
Motional Inductance
LM
593.8732
µH
Motional Capacitance
CM
0.4303
fF
Shunt Static Capacitance
C0
2.15
2.45
124
Ω
Motional Resistance
2.75
pF
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 Centre, 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]
iCAUTION: Electrostatic Sensitive Device. Observe precautions for handling!
1.
2.
3.
4.
5.
6.
7.
8.
9.
The frequency fC is the frequency of minimum IL with the resonator in the specified test fixture in a 50 Ω test
system with VSWR ≤ 1.2:1. Typically, f OSCILLATOR or fTRANSMITTER is less than the resonator f C.
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) ]. Typically, oscillator T0 is 20° less
than the specified resonator T0.
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 (non-motional) capacitance between either Pin 1
and ground or Pin 4 and ground. 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 C0.
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 Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK
http://www.actcrystals.com
3 OF 3
Issue : 1 C1
Date : SEPT 04