17 December 2008
Specification for crystal filter:
1. General
1.1. Package:
QF 21.4-20000/09
1.2.
1.3.
1.4.
1.5.
2.
2.1.
2.2.
2.2.1.
2.2.2.
2.2.3.
2.2.4.
Type name:
Number of poles:
Operating temperature range:
Storage temperature range:
Electric values
Nominal centre frequency fo:
Pass band
Centre frequency fc:
Bandwidth between 3 dB - frequencies:
Ripple:
Insertion loss:
( measured on smallest attenuation in pass band )
Stop band
fo
400 kHz
fo
2.5 MHz......
5 MHz:
Alternate attenuation
Spurious responses:
Terminating impedance ( input and output ):
Intermodulation
frequency 1:
frequency 2:
input power:
IM:
Marking:
QF 21.4-20000/09
6
-30°C to +70°C
-40°C to +90°C
21.4 MHz
21.4 MHz
7.5 kHz
> fo
100 kHz
< 1.5 dB at fo
80 kHz
< 8.0 dB
2.3.
2.3.1.
2.3.2.
2.3.3.
2.3.4.
2.4.
2.5
60 dB (except spurious )
90 dB (except spurious )
> 80 dB (except spurious )
> 45 dB at fo+400 kHz…...fo+5.0 MHz
50
// 0 pF
21.60 MHz / 21.80 MHz
21.20 MHz / 21.00 MHz
0 dBm
> 60 dB
manufacturer, date code
QF 21.4-20000/09
3.
4.
Environment conditions:
Corresponding to Vectron standard CF001
_____________________________________________________________________________________
Edited by:
date: _____________________________ name: _______________________________
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
