Tel : +44 118 979 1238
Fax : +44 118 979 1283
Email: info@actcrystals.com
4-2.Electronic Characteristics
TA = 25 °C
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Group delay aperture:
ZS = 50 Ω
ZL = 50 Ω
0.25MHz
Characteristics of Channel 1
Characteristic
Min.
Typ.
Max.
Units
Centre Frequency
f
478.50
479.50
480.50
MHz
c
Insertion attenuation
(Reference level for the following data)
479.50 MHz
α
--
--
21.8
15.0
24.0
--
dB
MHz
Pass bandwidth
αrel≤3dB
B3dB
Relative attenuation
αrel
--
--
34.0
34.0
3.1
3.0
45.0
44.0
5.0
5.0
--
dB
dB
dB
dB
472.00 MHz
487.00 MHz
430.00 ….458.00 MHz
501.00 … 530.00 MHz
Lower sidelobe
Upper sidelobe
--
Reflected wave signal suppression
0.15s … 2.0μs after main pulse
40.0
46.0
--
dB
Amplitude ripple (p-p)
Group delay ripple (p-p)
475.00 … 484.00 MHz
472.00 … 487.00 MHz
Δ α
--
--
--
0.6
10
1.2
15
--
dB
ns
Δt
-86
ppm/K
Temperature coefficient of frequency
TCf
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
Issue : 1 C1
Date : SEPT 04
ACT [ ADVANCED CRYSTAL TECHNOLOGY ]
