SAW Components
Data Sheet B3891
2Feb 24, 2005
SAW Components B3891
71,0 MHzLow-Loss Filter
Data Sheet
top view
side view
bottom view
1,6
6,5
13,3
1,7
1,0 7,62
1234
5
6
78
910
3,81
2,3
Ceramic package DCC12A
Features
■Low-loss IF filter for GSM/EDGE base station,
receive path
■Usable passband 250 kHz
■Balanced or unbalanced operation possible
■Temperature stable
■Ceramic SMD package
Terminals
■Gold plated
Dim. in mm, aprox. weight 0,4 g
Pin configuration
10, 1 Input
5, 6 Output
3, 8 Ground
2, 4, 7, 9 Case ground
Electrostatic Sensitive Device (ESD)
Type Ordering code Marking and Package
according to Packing
according to
B3891 B39710-B3891-H510 C61157-A7-A94 F61074-V8163-Z000
Maximum ratings
Operable temperature range
T
–40 / +85 ˚C
Storage temperature range
T
stg –40 / +85 ˚C
DC voltage
V
DC 0V
Source power
P
s10 dBm
3Feb 24, 2005
SAW Components B3891
71,0 MHzLow-Loss Filter
Data Sheet
Characteristics
Operating temperature range: T = 0 .. 70 ˚C
Terminating source impedance:
Z
S= 200 Ωbalanced and matching network
Terminating load impedance:
Z
L= 200 Ω balanced and matching network
1) Temperature dependance of
f
c:
f
c(
T
A) =
f
c(
T
0)(1 +
TC
f(
T
A –
T
0)2)
min. typ. max.
Nominal frequency
f
N— 71,0 — MHz
Minimum insertion attenuation αmin — 6,5 8,0 dB
(including matching network)
Passband width
B
1,0dB 250 290 — kHz
αrel ≤1 dB
Amplitude ripple ∆α
fN± 125 kHz — 0,6 ±1,0 dB
Absolute group delay (at
f
N)τN1,9 2,1 2,3 µs
Group delay ripple (p-p) ∆τ
fN± 125 kHz — 0,5 1,5 µs
Relative attenuation (relative to αmin)αrel
fN±300 kHz ... fN±500 kHz 14 18 — dB
fN±500 kHz ... fN±700 kHz 30 35 — dB
fN±700 kHz ... fN±3 MHz 39 45 — dB
@ fN ± 800 kHz 41 45 — dB
fN ± 3 MHz ... fN±35 MHz 43 60 — dB
IM3 level
IM3
f1 = fN- 0,8 MHz, input power -14 dBm
f2 = fN- 1,6 MHz, input power -14 dBm
@
f
N— — -95 dBm
f1 = fN+ 0,8 MHz, input power -14 dBm
f2 = fN+1,6 MHz, input power -14 dBm
@
f
N— — -95 dBm
Temperature coefficient of frequency 1)
TC
f— – 0,036 — ppm/K2
Turnover temperature
T
0—25—˚C
4Feb 24, 2005
SAW Components B3891
71,0 MHzLow-Loss Filter
Data Sheet
Characteristics (extended temperature range)
Operating temperature range: T = -40 .. +85 ˚C
Terminating source impedance:
Z
S= 200 Ωbalanced and matching network
Terminating load impedance:
Z
L= 200 Ω balanced and matching network
1) Temperature dependance of
f
c:
f
c(
T
A) =
f
c(
T
0)(1 +
TC
f(
T
A –
T
0)2)
min. typ. max.
Nominal frequency
f
N— 71,0 — MHz
Minimum insertion attenuation αmin — 6,5 8,5 dB
(including matching network)
Passband width
B
1,0dB 250 290 — kHz
αrel ≤1 dB
Amplitude ripple (p-p) ∆α
fN± 125 kHz — 0,6 ±1,5 dB
Absolute group delay (at
f
N)τN1,9 2,1 2,3 µs
Group delay ripple (p-p) ∆τ
fN± 125 kHz — 0,5 1,5 µs
Relative attenuation (relative to αmin)αrel
fN±300 kHz ... fN±500 kHz 12 18 — dB
fN±500 kHz ... fN±700 kHz 30 35 — dB
fN±700 kHz ... fN±3 MHz 39 45 — dB
@ fN ± 800 kHz 41 45 — dB
fN ± 3 MHz ... fN±35 MHz 43 60 — dB
IM3 level
IM3
f1 = fN- 0,8 MHz, input power -14 dBm
f2 = fN- 1,6 MHz, input power -14 dBm
@
f
N— — -95 dBm
f1 = fN+ 0,8 MHz, input power -14 dBm
f2 = fN+1,6 MHz, input power -14 dBm
@
f
N— — -95 dBm
Temperature coefficient of frequency 1)
TC
f— – 0,036 — ppm/K2
Turnover temperature
T
0—25—˚C
5Feb 24, 2005
SAW Components B3891
71,0 MHzLow-Loss Filter
Data Sheet
Matching network to 200 Ω
Transformers are only required for measurement in a 50 Ω environment
Cs1 = Cs2 = 12 pF Cs3 = Cs4 = 18 pF
Lp1 = 220 nH Lp2 = 180 nH
Element values depend upon board layout
6Feb 24, 2005
SAW Components B3891
71,0 MHzLow-Loss Filter
Data Sheet
Normalized frequency response
Normalized frequency response (pass band)
7Feb 24, 2005
SAW Components B3891
71,0 MHzLow-Loss Filter
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW MC IS
P.O. Box 80 17 09, 81617 Munich, GERMANY
EPCOS AG 2005. Reproduction, publication and dissemination of this brochure and the informa-
t
ion 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
t
he Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic
Manufacturers’ Association), unless otherwise agreed.
T
his brochure replaces the previous edition.
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.
