ACT ACTR423

Tel : +44 118 979 1238
Fax : +44 118 979 1283
Email: info@actcrystals.com
The ACTR423 /423.22/TO39 is a true one-port, surface-acoustic-wave (SAW) resonator in a
low-profile TO-39 case. It provides reliable, fundamental-mode, quartz frequency stabilization of
fixed-frequency oscillators operating at approximately 423.220MHz. The NDR423 is designed for
433.920 MHz superhet receivers (with 10.7 MHz IF) in remote-control and wireless security
applications operating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR
2100.
1.Package Dimension (TO-39)
Pin
Configuration
1
Input / Output
2
Output / Input
3
Case Ground
Dimension
Data (unit: mm)
A
9.30±0.20
B
5.08±0.10
C
3.40±0.20
D
3±0.20⁄5±0.20
E
0.45±0.20
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
Email: info@actcrystals.com
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
Unit
0
dBm
±30V
VDC
-40 to +85
°C
7-2.Electronic Characteristics
Characteristic
Centre Frequency
(+25°C)
Sym
Minimum
Absolute Frequency
fC
423.145
Tolerance from 423.220MHz
∆fC
±75
IL
1.3
Unloaded Q
QU
12,325
50 Ω Loaded Q
QL
1,700
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
25
Typical
40
Maximum
Unit
423.295
MHz
kHz
1.8
dB
55
°C
1.0
MΩ
16
Motional Inductance
LM
74.1961
µH
Motional Capacitance
CM
1.9080
fF
Pin 1 to Pin 2 Static Capacitance
C0
1.9
2.2
23
Ω
RM
2.5
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 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: info@actcrystals.com
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 Pin1 and
Pin2. 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