SAW Components
Data Sheet B4843
2Nov 24, 1999
SAW Components B4843
360,00 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Features
■Low-loss IF filter for mobile telephone
■Channel selection in GSM, PCN systems
■Ceramic SMD package
■Very small size
Terminals
■Gold-plated Ni
Pin configuration
1 Input or input ground
2 Input or balanced input
5 Output or output ground
6 Output or balanced output
4,8 Case ground
3,7 To be grounded
Electrostatic Sensitive Device (ESD)
Type Ordering code Marking and Package
according to Packing
according to
B4843 B39961-B4843-U310 C61157-A7-A56 F61074-V8070-Z000
Maximum ratings
Operable temperature range
T
– 20 / +75 ˚C
Storage temperature range
T
stg – 35 / +85 ˚C
DC voltage
V
DC 3V
Source power
P
s10 dBm
Dimensions in mm, approx. weight 0,10 g
SMD ceramic package QCC8C
3Nov 24, 1999
SAW Components B4843
360,00 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Ambient temperature:
T
= -20˚C to +75˚C
Terminating source impedance:
Z
S= 780 Ω || -1,9 pF
Terminating load impedance:
Z
L= 780 Ω || -1,9 pF
1) Temperature dependence of fc:f
c(T) = fc(T0)(1 + TCf(T – T0)2)
*) In the frequency range from 357,8 MHz to 358,2 MHz there exists one spurious response with
a maximum 3 dB - bandwidth of 150 kHz. The minimum attenuation αrel of this spurious
response is more than 46 dB.
min. typ. max.
Nominal frequency
f
N— 360,00 — MHz
(center frequency between 3 dB points)
Minimum insertion attenuation
including loss in matching network αmin 5,0 5,6 6,4 dB
excluding loss in matching elements αmin 4,3 4,9 5,5 dB
Amplitude ripple (p-p) ∆α
fN -67,5kHz .. fN+67,5 kHz — 0,5 2,0 dB
fN -80,0 kHz .. fN+80,0 kHz — 0,5 3,0 dB
Group delay ripple (p-p) ∆τ
fN -67,5 kHz .. fN+67,5 kHz — 0,50 1,5 µs
fN -80,0 kHz .. fN+80,0 kHz — 0,65 2,0 µs
Relative attenuation (relative to αmin)αrel
fN±300 kHz ... fN± 400 kHz 8 16 — dB
fN±400 kHz ... fN± 600 kHz 21 25 — dB
fN ± 600 kHz ... fN±800 kHz 35 38 — dB
fN ± 800 kHz ... fN±1,6 MHz 40 46 — dB
fN ± 1,6 MHz ... fN±3,0 MHz 48*) 54 — dB
fN ± 3,0 MHz ... fN±4,0 MHz 50 55 — dB
fN ± 4,0 MHz ... fN±15 MHz 50 65 — dB
Impedance within the pass band
Input:
Z
IN =
R
IN ||
C
IN — 780 || 1,9 — Ω || pF
Output:
Z
OUT =
R
OUT ||
C
OUT —780 || 1,9 —Ω || pF
Temperature coefficient of frequency 1)
TC
f— -0,028 — ppm/K2
Turnover temperature
T
0—25—˚C
4Nov 24, 1999
SAW Components B4843
360,00 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Ambient temperature:
T
= 25˚C
Terminating source impedance:
Z
S= 780 Ω || -1,9 pF
Terminating load impedance:
Z
L= 780 Ω || -1,9 pF
1) Temperature dependence of fc:f
c(T) = fc(T0)(1 + TCf(T – T0)2)
*) In the frequency range from 357,8 MHz to 358,2 MHz there exists one spurious response with
a maximum 3 dB - bandwidth of 150 kHz. The minimum attenuation αrel of this spurious
response is more than 46 dB.
min. typ. max.
Nominal frequency
f
N— 360,01 — MHz
(center frequency between 3 dB points)
Minimum insertion attenuation
including loss in matching network αmin 5,0 5,6 6,4 dB
excluding loss in matching elements αmin 4,3 4,9 5,5 dB
Amplitude ripple (p-p) ∆α
fN -67,5kHz .. fN+67,5 kHz — 0,5 2,0 dB
fN -80,0 kHz .. fN+80,0 kHz — 0,5 3,0 dB
Group delay ripple (p-p) ∆τ
fN -67,5 kHz .. fN+67,5 kHz — 0,50 1,5 µs
fN -80,0 kHz .. fN+80,0 kHz — 0,65 2,0 µs
Relative attenuation (relative to αmin)αrel
fN±300 kHz ... fN± 400 kHz 11 18 — dB
fN±400 kHz ... fN± 600 kHz 22 27 — dB
fN ± 600 kHz ... fN±800 kHz 36 39 — dB
fN ± 800 kHz ... fN±1,6 MHz 40 46 — dB
fN ± 1,6 MHz ... fN±3,0 MHz 48*) 54 — dB
fN ± 3,0 MHz ... fN±4,0 MHz 50 55 — dB
fN ± 4,0 MHz ... fN±15 MHz 50 65 — dB
Impedance within the pass band
Input:
Z
IN =
R
IN ||
C
IN — 780 || 1,9 — Ω || pF
Output:
Z
OUT =
R
OUT ||
C
OUT —780 || 1,9 —Ω || pF
Temperature coefficient of frequency 1)
TC
f— -0,028 — ppm/K2
Turnover temperature
T
0—25—˚C
5Nov 24, 1999
SAW Components B4843
360,00 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Test matching network to 50 Ω(element values depend on PCB layout):
Ls1 =L
s2 = 25,5 nH
Ls3 = L
s4 = 25,5 nH
6Nov 24, 1999
SAW Components B4843
360,00 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Transfer function (normalized plot):
7Nov 24, 1999
SAW Components B4843
360,00 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, OFW E MF
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.
