ACT ACTR8021

Tel : +44 118 979 1238
Fax : +44 118 979 1283
Email: [email protected]
The ACTR8021/868.35/QCC4A is a true one-port, surface-acoustic-wave (SAW) resonator in a
surface-mount ceramic QCC4A case. It provides reliable, fundamental-mode, quartz frequency
stabilization i.e. in transmitters or local oscillators operating at 868.350 MHz.
1.Package Dimension (QCC4A)
2.
Pin
Configuration
1
Input / Output
3
Output / Input
2/4
Case Ground
Sign
Data (unit: mm)
Sign
Data (unit: mm)
A
1.2
D
1.4
B
0.8
E
5.0
C
0.5
F
3.5
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
Value
Units
0
dBm
±30V
VDC
-40 to +85
°C
+250
°C
CW RF Power Dissipation
DC Voltage Between Terminals
Case Temperature
Soldering Temperature
7-2.Electronic Characteristics
Centre Frequency
(+25 °C)
Characteristic
Sym
Minimum
Absolute Frequency
fC
868.200
Tolerance from 868.350 MHz
∆fC
±150
IL
1.7
Unloaded Q
QU
8,300
50 Ω Loaded Q
QL
1,500
Turnover Temperature
T0
Turnover Frequency
f0
fC
kHz
FTC
0.032
ppm/°C 2
≤10
ppm/yr
Insertion Loss
Quality Factor
Temperature
Stability
Frequency Temperature Coefficient
Frequency Aging
Absolute Value during the First Year
RF Equivalent
RLC Model
25
|fA|
DC Insulation Resistance Between Any Two Terminals
Typical
Maximum
Units
868.500
MHz
kHz
2.3
dB
55
°C
1.0
MΩ
RM
22
Motional Inductance
LM
33.5580
µH
Motional Capacitance
CM
1.0021
fF
Shunt Static Capacitance
C0
2.3
2.6
30
Ω
Motional Resistance
2.9
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 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 (non-motional) capacitance between the two
terminals. 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 Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK
http://www.actcrystals.com
3 OF 3
Issue : 1 C1
Date : SEPT 04