SAW Components
Data Sheet B3688
SAW Components Low-Loss Filter Data Sheet
B3688 499,25 MHz
Ceramic package QCC12C
Features
q Low-loss filter q Temperature stable q Package for Surface Mounted Technology
1
2,54 2,54 1,0
111 11 11 000 00 00 111 11 11 000 00 00 111 111 11 11 11 000 000 00 00 00 111 111 11 11 11 000 000 00 00 00 111 111 000 000 000 11 00 111 000 111 11 00
12 11 2 3
1,4
4
(SMT) q Hermetically sealed ceramic package
1,48
bottom view
111 000 11 00 111 000 11 00 111 000 111 111 11 11 11 000 000 00 00 00 11 00 111 00 00 000 00 00 111 11 11 000 11 11 111 11 11 000 00 00
10 9 8 7
Terminals
q Gold-plated
0,6
111 000 111 000 111 000 111 000 111 000 11 00 11 00 10 01 11 00 00 11 11 00 11 00 11 00 11 00 11 00
6
5
side view
5,0
top view
7,0
Dimensions in mm, approx. weight 0,2 g Pin configuration 10 12 4 6 3, 9 1, 2, 7, 8 Input Input ground or bal. input Output Output ground or bal. output Case - ground To be grounded
Type B3688
Ordering code B39501-B3688-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
– 45/+ 85 – 40/+ 85 0 10
˚C ˚C V dBm
source impedance 50 Ω
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Jan 29, 2003
SAW Components Low-Loss Filter Data Sheet
Characteristics Operating temperature: Terminating source impedance: Terminating load impedance: T = -25 ... +75 ˚C ZS = 50 Ω and matching network ZL = 50 Ω and matching network min. Nominal frequency Insertion attenuation at fN (T=25 ˚C) Variation of insertion att. (rel. to αN) Frequency response 3 dB Lower frequency 3 dB Upper frequency 35 dB Lower frequency 35 dB Upper frequency Amplitude ripple (peak to adjacent valley) fN ± 100 kHz Relative attenuation fN - 200,0 MHz ... fN - 10,0 MHz fN - 10,0 MHz ... fN - 3,0 MHz fN + 3,0 MHz ... fN + 10,0 MHz fN + 10,0 MHz ... fN + 200,0 MHz Temperature coefficient of frequency Turnover temperature
1)
B3688 499,25 MHz
typ. 499,25 8,0 —
max. — 9,0 ±0,9 MHz dB dB
fN
αN αrel
— 6,0 —
fL 3dB fU 3dB fL35dB fU35dB
— 499,75 496,25 —
498,27 500,23 496,75 501,85
498,75 — — 502,25
MHz MHz MHz MHz
— αrel 40 35 35 40
—
0,5
dB
55 48 43 51 – 0,036 25
— — — — — —
dB dB dB dB ppm/K2 ˚C
TCf T0
— —
Matching circuit: Cp1 = 14pF 2) Ls2 = 21nH 2) Ls3 = 22nH 2) Cp4 = 13pF 2)
1) Temperature 2)
dependance of fc:
fc(TA) = fc(T0)(1 + TCf(TA – T0)2)
Element values depend on PCB layout
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Jan 29, 2003
SAW Components Low-Loss Filter Data Sheet
Normalized frequency response
B3688 499,25 MHz
Normalized frequency response (pass band)
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Jan 29, 2003
SAW Components Low-Loss Filter Data Sheet
B3688 499,25 MHz
Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC IS P.O. Box 80 17 09, 81617 Munich, GERMANY © EPCOS AG 2003. 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.
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