SAW Components
Data Sheet B3640
SAW Components Low-Loss Filter Data Sheet
B3640 238,0 MHz
Ceramic package QCC12
Features
q q q q
Low-loss IF filter for DCS base station Tx path Temperature stable Ceramic SMD package
Terminals
q Gold plated
Dim. in mm, aprox. weight 0,4 g Pin configuration 1, 10 7 4 3, 9 2, 6, 8, 12 5, 11 Input (balanced) Output Output ground To be grounded Case ground Not connected
Type B3640
Ordering code B39231-B3640-Z510
Marking and Package according to C61157-A7-A55
Packing according to F61074-V8026-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings Operable temperature range Storage temperature range DC voltage Source power
T Tstg VDC Ps
– 20/+ 75 – 40/+ 85 10 10
˚C ˚C V dBm
2
Apr 04, 2001
SAW Components Low-Loss Filter Data Sheet
B3640 238,0 MHz
Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance:
TA = -5 - 75 ˚C ZS = 200 Ω and matching network. ZL = 50 Ω and matching network
min. typ. 238,0 8,5 max. — 9,5 MHz dB
Nominal frequency Minimum insertion attenuation (including matching network) Amplitude ripple (p-p) fN ± 100 kHz fN ± 300 kHz Absolute group delay Group delay variation fN ± 100 kHz fN ± 300 kHz Relative attenuation (relative to αmin) fN ± 0,6 MHz ... fN ± 0,8 MHz fN ± 0,8 MHz ... fN ± 1,8 MHz fN ± 1,8 MHz ... fN ± 6,0 MHz fN ± 6,0 MHz ... fN ± 20 MHz fN ± 20 MHz ... fN ± 120 MHz Temperature coefficient of frequency 1) Turnover temperature
1) Temperature
fN
αmin
— 7
∆α — — τ ∆τ — — αrel 5 10 25 30 40 8 25 45 41 42
–0,036
0,3 1,9 1,5
1,1 3,0 3
dB dB µs
—
50 90
150 250
ns ns
— — — — — — —
dB dB dB dB dB ppm/K2 ˚C
TCf T0
— —
30
dependance of fc:
fc(TA) = fc(T0)(1 + TCf(TA – T0)2)
3
Apr 04, 2001
SAW Components Low-Loss Filter Data Sheet
B3640 238,0 MHz
Matching network (element values depend on pcb layout)
Cp1 = 10 pF Ls2 = 22 nH Ls3 = 27 nH Ls4 = 33 nH Cp5 = 22 pF
4
Apr 04, 2001
SAW Components Low-Loss Filter Data Sheet
Normalized frequency response
B3640 238,0 MHz
Normalized frequency response (pass band)
5
Apr 04, 2001
SAW Components Low-Loss Filter Data Sheet
B3640 238,0 MHz
Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC IS P.O. Box 80 17 09, D-81617 München © EPCOS AG 1999. All Rights Reserved. As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or the international representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our sales offices.
6
Apr 04, 2001
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