ACTF540 Datasheet, PDF (3/3 Pages) Advanced Crystal Technology – SAW Filter

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5-2.Electronic Characteristics
Characteristic
Centre Frequency
(centre frequency between 3dB points)
Insertion Loss
3dB Pass band
Rejection
at f_C -21.4MHz (Image)
at f_C -10.7MHz (LO)
Ultimate
Turnover Temperature
Temperature ^{Turnover Frequency}
Frequency Temperature Coefficient
f_C
IL
BW₃
T_O
f_O
FTC
Frequency Aging Absolute Value during the First Year |fA|
Minimum Typical Maximum Unit
433.420
MHz
--
3.5
5.0
dB
600
800
kHz
35
45
--
20
28
--
dB
--
60
--
25
55
0_C
f_C
0.032
10
MHz
ppm/
0_C2
ppm/yr
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling!
NOTE:
1. The frequency f_C is defined as the midpoint between the 3dB frequencies.
2. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture that is
connected to a 50Ω test system with VSWR≤1.2:1. The test fixture L and C are adjusted for minimum insertion
loss at the filter centre frequency, f_C. Note that insertion loss, bandwidth, and passband shape are dependent on
the impedance matching component values and quality.
3. Unless noted otherwise, specifications apply over the entire specified operating temperature range.
4. 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.
5. Turnover temperature, T₀, is the temperature of maximum (or turnover) frequency, f₀. The nominal frequency at
any case temperature, T_C, may be calculated from: f = f₀ [1 - FTC (T₀ - T_C)²].
6. The specifications of this device are based on the test circuit shown above and subject to change or
obsolescence without notice.
7. All equipment designs utilizing this product must be approved by the appropriate government agency prior to
manufacture or sale.
8. 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
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
Issue : 2 C1u
Date : SEPT 06