EPCOS B4943

SAW Components
Data Sheet B4943
SAW Components
B4943
85,38 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
SMD ceramic package QCC10C
Features
■
■
■
■
■
■
■
IF filter for mobile telephone
Channel selection in CDMA systems
Balanced or unbalanced operation possible
High rejection, small size
Low amplitude ripple
Filter surface passivated
Package for Surface Mounted Technology (SMT)
Terminals
■ Ni, gold plated
Dimensions in mm, approx. weight 0,24 g
Pin configuration
10
9
5
4
2, 7
1, 3, 6, 8
Input
Balanced input or input ground
Output
Balanced output or output ground
Case ground
Not connected
Type
Ordering code
Marking and Package
Packing
B4943
B39850-B4943-U910
according to
C61157-A7-A73
according to
F61074-V8105-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
Tstg
VDC
Ps
– 40/+ 85
– 40/+ 85
13
10
2
˚C
˚C
V
dBm
Dec 01, 2000
SAW Components
B4943
85,38 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
T = –35˚C .. +85 ˚C
ZS = 1975 Ω || 340 nH
ZL = 1600 Ω || 350 nH
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
min.
typ.
max.
Nominal frequency
fN
—
85,38
—
MHz
Minimum insertion attenuation
αmin
—
10,0
11,5
dB
MHz
—
0,5
0,8
dB
Phase linearity (rms deviation)
fN – 0,63 MHz ...
fN + 0,63 MHz
—
2,5
3,5
˚
—
4,0
5,0
dB
(including loss in matching network without loss in balun)
Amplitude ripple
fN – 0,3 MHz
∆α
...
fN + 0,3
Relative attenuation (relative to αmin)
fN ± 0,63 MHz
fN – 0,9
fN + 0,9
fN – 1,7
fN + 1,7
fN – 9,0
fN – 2,0
fN + 0,9
fN + 1,7
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
...
...
...
...
fN – 2,0
fN – 0,9
fN + 1,7
fN + 9,0
αrel
35
35
35
38
38
35
35
38
MHz
MHz
MHz
MHz
3
Dec 01, 2000
41
55
39
44
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
SAW Components
B4943
85,38 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Normalized transfer function (balanced/balanced)
Normalized transfer function (passband, balanced/balanced):
4
Dec 01, 2000
SAW Components
B4943
85,38 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Normalized transfer function (wideband, balanced/balanced)
5
Dec 01, 2000
SAW Components
B4943
85,38 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Test matching network to 200Ω / 200Ω
(Element values depend on pcb layout)
Cs1= 3,9 pF || 2,2 pF
Cs2= 6,8 pF
Lp1 = 220 nH || 1 pF
Lp2 = 220 nH || 1,5 pF
Cs3 = 5,6 pF
Cs4 = 6,8 pF
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.
As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and circuits implemented within components or
assemblies.
The information describes the type of component and shall not be considered as assured
characteristics.
Terms of delivery and rights to change design reserved.
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
Dec 01, 2000