EPCOS B39161-B4908-Z810

SAW Components
Data Sheet B4908
SAW Components
B4908
158,55 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Ceramic package QCC8B
Features
● Low-loss IF filter for mobile telephone, transmit
●
●
●
●
path
Low amplitude ripple
Usable passbands 1,3 MHz
Balanced and unbalanced operation possible
Ceramic package for Surface Mounted
Technology (SMT)
Terminals
● Ni, gold-plated
Dimensions in mm, approx. weight 0,07 g
Pin configuration
2
3
6
7
4,8
Input
Input
Output
Output
Case - Ground
1,5
To be grounded
Type
Ordering code
B4908
B39161-B4908-Z810
Marking and Package
according to
C61157-A7-A46
Packing
according to
F61074-V8037-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
Tstg
VDC
PIN
– 40 / + 85
– 40 / + 85
0
10
2
˚C
˚C
V
dBm
source impedance 50 Ω
Jan 22, 2001
SAW Components
B4908
158,55 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
T = -40 to +85 ˚C
ZS = 470 Ω || 470 nH, single ended (pin 3)
ZL = 470 Ω || 680 nH, balanced
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
min.
fc
typ.
max.
—
158,55
Maximum insertion attenuation
αmax
157,90
...
159,20 MHz
—
2,5
3,0
dB
Amplitude ripple in passband (p-p)
∆α
157,90
...
159,20 MHz
—
0,5
1,0
dB
—
0,6
1,5
˚rms
Center frequency
Phase linearity deviation
157,90
...
—
MHz
∆φ
159,20 MHz
αmin
Attenuation
0,00
130,00
139,00
165,55
178,00
475,00
...
...
...
...
...
...
130,00
139,00
151,55
178,00
475,00
1000,00
MHz
MHz
MHz
MHz
MHz
MHz
3
50
40
30
14
35
45
Jan 22, 2001
55
52
39
16
40
70
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
SAW Components
B4908
158,55 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Transfer function (wideband):
Transfer function (narrowband):
4
Jan 22, 2001
SAW Components
B4908
158,55 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Transfer function (passband ) :
5
Jan 22, 2001
SAW Components
B4908
158,55 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.
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
Jan 22, 2001