SP-233
SP-233 is PHS First IF Filters manufactured by SIPAT.
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Sichuan Institute of Piezoelectric and Acoustooptic Technology
For PHS First IF Filters (SC04-01 Package)
Electrical Characteristic:
SP 233
Unit
MHz MHz d B d B ns Ω °C
Characteristic
Center Frequency 3d B Bandwidth Insertion Loss(at minimum loss point) Stop Band Attenuation (from peak level) at F0 ±0.6MHz Group Delay Deviation(with F0 ±150k Hz) Input/Output Impedance Package Ambient Temperature Input/Output Impedance(fig1):
Minimum
233.10 0.47
Typical
233.15 0.52 14.2
Maximum
233.20 15
18 200 50 SC04-01 25 300
SC04-01 Package(fig2):
Lp1=27n H, Lp2=39n H This may be changed according to PCB. Frequency Characteristic(fig3):
233.15 MHz SAWF -10 -20 1.5 -30 1.4 Group Delay(us) Amplitude(d B) -40 -50 -60 -70 1.1 -80 -90 228.15 229.15 230.15 231.15 232.15 233.15 234.15 235.15 236.15 237.15 238.15 Frequency(MHz) 1 232.4 232.55 232.7 232.85 233 233.15 233.3 233.45 233.6 233.75 233.9 Frequency(MHz) 1.6
____________________________________ _____________________________________________________________ P.O.Box 2513 Chongqing China 400060 -23 -62920684 Tel:86 Fax:62805284 email:sawmkt@sipat....
