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SAW Components
Data Sheet B4959
SAW Components Low-Loss Filter for Mobile Communication Data Sheet
B4959 128,1 MHz
SMD ceramic package QCC12C Features
s s s s s s s
2,54
111 000 111 000 111 000 111 000
12 11
IF filter for mobile telephone Channel selection in CDMA systems Balanced or unbalanced High rejection, very small size Low amplitude ripple Package for Surface Mounted Technology (SMT) Filter surface passivated
2,54 1,0
1 2 3 111 11 000 00 111 000 111 11 000 00 111 000 111 11111 000 00000 111 000 111 11111 000 00000 111 000 111 000 111 000 111 000 111 000
1,4
4
bottom view
111 000 111 000 111 000 111 111 000 000 111 000 111 000 111 000 111 000 111 000 111 000 111 000 9 8
10
111 000 111 000 111 000 11111 00000 11 00 11 00 11 00 7
0,6
111 000 111 000 111 000 111 000 111 000 111 000 111 000 111 000 111 000 111 111 111 000 000 000 111 111 111 000 000 000
1,48
6
5
side view
Terminals
s Ni, gold plated
5,0
top view
7,0
Dimensions in mm, approx. weight 0,155 g
Pin configuration 6 4 12 10 1, 2, 3, 7, 8, 9 Input Balanced input or ground Balanced output Balanced output To be grounded
12
4
10 2,8
6
Type B4959
Ordering code B39131-B4959-H310
Marking and Package according to C61157-A7-A95
Packing according to F61074-V8170-Z000
Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power
T Tstg VDC Ps
- 40/+ 85 - 40/+ 85 5 10
C C V dBm
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Jan 20, 2004
SAW Components Low-Loss Filter for Mobile Communication Data Sheet
Characteristics Specified temperature range: Terminating source impedance: Terminating load impedance:
B4959 128,1 MHz
T = -30C .. +85 C ZS = 1270 || 185 nH ZL = 1840 || 180 nH
min. typ. 128,1 10,4 max. -- 12,0 MHz dB
Nominal frequency Minimum insertion attenuation
(with losses of matching network, without loss of balun)
fN
min
-- --
Amplitude ripple fN - 0,30 MHz
...
fN + 0,30 MHz
--
0,5
1,0
dB
Phase linearity (rms deviation) fN - 0,615MHz ... fN + 0,615 MHz Relative attenuation (relative to min) fN 0,615MHz rel
--
2,0
3,5
-- 37 37 37 37 37 37 40 40 40 37 37 40 60 45
3,8 50 41 45 50 46 47 48 52 43 42 40 43 70 47
4,5 -- -- -- -- -- -- -- -- -- -- -- -- -- --
dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB
fN - 0,9 MHz fN + 0,9 MHz fN - 1,25 MHz fN + 1,25 MHz fN - 1,7 MHz fN + 1,7 MHz fN - 2,05 MHz fN + 2,05 MHz 10,0 MHz fN - 2,05 MHz fN + 0,9 MHz fN + 2,05 MHz
172,485 MHz 207,485 MHz
... ... ... ... ... ...
fN - 2,05 MHz fN - 0,9 MHz fN + 2,05 MHz 200 MHz
173,715 208,715 MHz MHz
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Jan 20, 2004
SAW Components Low-Loss Filter for Mobile Communication Data Sheet
Normalized transfer function (measurement):
B4959 128,1 MHz
Normalized transfer function (measurement, passband):
4
Jan 20, 2004
SAW Components Low-Loss Filter for Mobile Communication Data Sheet
Test matching network (Element values depend on pcb layout)
B4959 128,1 MHz
Cs1 = 5,6 pF Cp2 = not used Lp3 = 120 nH Lp4 = 100 nH Cs5 = 2,7 pF || 1,5 pF
all coils: Coilcraft 0603
Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC P.O. Box 80 17 09, 81617 Munich, GERMANY (c) EPCOS AG 2004. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS' prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed. This brochure replaces the previous edition. 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.
5
Jan 20, 2004

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