SAW Components
Data Sheet B3644
2Sep 27, 2000
SAW Components B3644
300,0 MHzLow-Loss Filter
Data Sheet Ceramic package QCC12B
Features
●IF filter for WLL application (W-CDMA)
●Small insertion loss
●Small group delay ripple
●Ceramic SMD package
Terminals
●Gold plated
Dimensions in mm, approx. weight 0,2 g
Pin configuration
2 Input
7 Output
9 Input ground
12 Output ground
1, 4, 6, 8, 10 Ground
3, 9 Case – ground
Electrostatic Sensitive Device (ESD)
Type Ordering code Marking and Package
according to Packing
according to
B3644 B39301-B3644-Z910 C61157-A7-A52 F61074-V8038-Z000
Maximum ratings
Operable temperature range
T
A–45 / +85 ˚C
Storage temperature range
T
stg –45 / +85 ˚C
DC voltage
V
DC 0V
Source power
P
s10 dBm
3Sep 27, 2000
SAW Components B3644
300,0 MHzLow-Loss Filter
Data Sheet
Characteristics
Operating temperature:
T
A= -45 .. +85 ˚C
Terminating source impedance:
Z
S= 50 Ω and matching network
Terminating load impedance:
Z
L= 50 Ω and matching network
Group delay aperture: 50 kHz
min. typ. max.
Nominal frequency
f
N— 300,0 — MHz
Minimum insertion attenuation αmin — 8,9 10,0 dB
(including matching network)
Passband width
αrel ≤3 dB
B
3dB 4,5 5,6 6,0 MHz
Amplitude ripple (p-p) ∆α
297,9 ... 302,1 MHz — — 3,0 dB
Group delay ripple (p-p) ∆τ
297,9 ... 302,1 MHz — 60 80 ns
297,5 ... 302,5 MHz — 65 100 ns
Relative attenuation (relative to αmin)αrel
f
N − 100 MHz ...
f
N− 15 MHz 40 50 — dB
f
N − 15 MHz ...
f
N−6,5 MHz 30 40 — dB
f
N − 6,5 MHz ...
f
N−5,5 MHz 25 30 — dB
f
N − 5,5 MHz ...
f
N−3,6 MHz 3 7 — dB
f
N + 3,6 MHz ...
f
N+5,5 MHz 3 7 — dB
f
N + 5,5 MHz ...
f
N+7,5 MHz 25 27 — dB
f
N + 7,5 MHz ...
f
N+15 MHz 30 40 — dB
f
N + 15 MHz ...
f
N+100 MHz 40 50 — dB
Temperature coefficient of frequency
TC
f— –18 — ppm/K
4Sep 27, 2000
SAW Components B3644
300,0 MHzLow-Loss Filter
Data Sheet
Matching network to 50 Ω
(Element values depend upon PCB layout)
Cp1 = 18 pF Cs3 = 33 pF
Ls2 = 18 nH Lp4 = 15 nH
5Sep 27, 2000
SAW Components B3644
300,0 MHzLow-Loss Filter
Data Sheet
Transfer function
Transfer function (pass band)
6Sep 27, 2000
SAW Components B3644
300,0 MHzLow-Loss Filter
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, OFW E NK
P.O. Box 80 17 09, D-81617 München
EPCOS AG 1999. All Rights Reserved.
A
s far as patents or other rights of third parties are concerned, liability is only assumed for compo-
nents per se, not for applications, processes and circuits implemented within components or
assemblies.
T
he information describes the type of component and shall not be considered as assured
characteristics.
T
erms of delivery and rights to change design reserved.
For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or
t
he international representatives.
Due to technical requirements components may contain dangerous substances. For information on
t
he type in question please also contact one of our sales offices.
