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ACTF480-1 Datasheet(Fiches technique) 3 Page - Advanced Crystal Technology

Numéro de pièce ACTF480-1
Description  one channel IF filter for DSB receivers with constant group delay
Télécharger  3 Pages
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Fabricant  ACT [Advanced Crystal Technology]
Site Internet  http://www.actcrystals.com
Logo 

   
 3 page
background image
Tel
:
+44 118 979 1238
Fax :
+44 118 979 1283
Email: info@actcrystals.com
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
Characteristic
Min.
Typ.
Max.
Units
Centre Frequency
fc
479.00
480.00
481.00
MHz
Insertion attenuation
480.00 MHz
α
(Reference level for the following data)
--
21
23.0
dB
Pass bandwidth
αrel≤3dB
B3dB
16.60
17.80
18.60
MHz
Relative attenuation
αrel
471.00 MHz
489.00 MHz
Lower sidelobe
430.00 ….461.00 MHz
Upper sidelobe
499.00 … 530.00 MHz
--
--
38.0
38.0
3.4
3.0
50.0
45.0
5.4
5.4
--
--
dB
dB
dB
dB
Reflected wave signal suppression
0.13
μs … 2.0μs after main pulse
40.0
46.0
--
dB
Amplitude ripple (p-p)
476.00 … 484.00 MHz
Δ α
--
0.6
1.0
dB
Group delay (aperture 0.25MHz)
480.00 MHz
τ
--
281.0
--
ns
Group delay ripple (p-p)
471.50 … 488.50 MHz
Δ
τ
--
11.5
18.0
ns
Temperature coefficient of frequency
TCf
--
-94
--
ppm/K
iCAUTION: Electrostatic Sensitive Device. Observe precautions for handling!
1.
The frequency fC 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 50
Ω 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.
The specifications of this device are based on the test circuit shown above and subject to change or
obsolescence without notice.
5.
All equipment designs utilizing this product must be approved by the appropriate government agency prior to
manufacture or sale.
6.
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.
Issue : 1 C1
Date : SEPT 04




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