EPCOS B4944 Saw components low-loss filter for mobile communication 181,80 mhz Datasheet

Tx IF Filters for Cellular Phones
Series/Type:
B4944
The following products presented in this data sheet are being withdrawn.
Ordering Code
B39181B4944Z810
Substitute Product
Date of
Withdrawal
2004-05-19
Deadline Last
Orders
2004-09-30
Last Shipments
2004-12-31
For further information please contact your nearest EPCOS sales office, which will also support
you in selecting a suitable substitute. The addresses of our worldwide sales network are
presented at www.epcos.com/sales.
The following products presented in this data sheet are being withdrawn:
B39181B4944Z810
Date of withdrawal:
Deadline for last orders:
Last shipments:
19−MAY−04
30−SEP−04
31−DEC−04
For further information please contact your nearest EPCOS sales office, which will also support
you in selecting a suitable substitute. The addresses of the sales offices are given on the Internet
at www.epcos.com/sales.
1
SAW Components
Data Sheet B4944
SAW Components
B4944
181,80 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Ceramic package QCC8B
Features
● Low-loss IF filter for mobile telephone TDMA
●
●
●
●
●
systems, transmit path
Low amplitude ripple
Usable passbands 30 kHz
Balanced to balanced operation
Impedance transformation from 100 Ω to 200 Ω
Ceramic package for Surface Mounted
Technology (SMT)
Terminals
● Ni, gold-plated
Dimensions in mm, approx. weight 0,07 g
Pin configuration
1, 3
5, 7
2, 6
4, 8
Balanced Input
Balanced Output
To be grounded
Case ground
Type
Ordering code
Marking and Package
according to
Packing
according to
B4944
B39181-B4944-Z810
C61157-A7-A46
F61074-V8037-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
Tstg
VDC
PIN
– 30 / + 85
– 40 / + 85
3
0
2
˚C
˚C
V
dBm
source impedance 50 Ω
Sept 6, 2002
SAW Components
B4944
181,80 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics (with matching inductor)
T = -30 to + 85˚C
ZS = 100 Ω
ZL = 200 Ω || 330 nH
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
fc
Center frequency
Maximum insertion attenuation
αmax
181,785... 181,815 MHz
min.
typ.
max.
—
181,44
—
—
1,6
2,0
dB
—
0,1
0,2
dB
MHz
∆α
Amplitude ripple (p-p)
181,785... 181,815 MHz
α
Attenuation
50,0
198,0
201,0
360,0
1570,0
1700,0
1800,0
4000,0
... 164,0
... 201,0
... 320,0
... 550,0
...1580,0
...2400,0
...1818,0
...4400,0
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
37,0
25,0
37,0
30,0
30,0
30,0
33,0
15,0
3
Sept 6, 2002
45,0
30,0
45,0
50,0
34,0
34,0
36,0
20,0
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
SAW Components
B4944
181,80 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Transfer function (narrowband):
Transfer function (wideband):
4
Sept 6, 2002
SAW Components
B4944
181,80 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Transfer function (passband, scale +0,27 MHz) :
5
Sept 6, 2002
SAW Components
B4944
181,80 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW MC WT
P.O. Box 80 17 09, D-81617 München
 EPCOS AG 2002. All Rights Reserved. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited.
The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. 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.
6
Sept 6, 2002
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