SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
B7838
881,5 MHz
Chip sized SAW package QCS5C
Features
s
Low-loss RF filter for mobile telephone
s
s
s
s
s
s
0.735
0,075
2
3
0,68
GSM850/AMPS system, receive path
Usable passband 25 MHz
Unbalanced to balanced operation
Excellent symmetry
Impedance transformation from 50
Ω
to 100
Ω
Suitable for GPRS class 1 to12
Ceramic package for
Surface Mounted
Technology
(SMT)
0,38
0,075
0,44
5
4
bottom view
1
side view
2,0
1,4
Terminals
s
Ni, gold-plated
top view
Dimensions in mm, approx. weight 0,007g
Pin configuration
1
3, 4
2, 5
Unbalanced input
Balanced output
To be grounded
Type
B7838
Ordering code
B39881-B7838-C710
Marking and Package
according to
C61157-A7-A111
Packing
according to
F61074-V8151-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
ESD voltage
Input power at
GSM850, GSM900,
GSM1800 and GSM1900
Tx bands
T
T
stg
V
DC
V
*ESD
P
IN
– 30 / + 85
– 40 / + 85
5
100
*
15
˚C
˚C
V
V
dBm
Machine Model, 10 pulses
peak power of GSM signal,
duty cycle 4:8
* -acc. to JESD22-A115A (Machine Model), 10 negative & 10 positive pulses
2
Mar 04, 2004
SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B7838
881,5 MHz
T
= +25 ˚C
Z
S
= 50
Ω (unbalanced)
Z
L
= 100
Ω
(balanced)
min.
typ.
881,5
max.
—
MHz
Center frequency
Maximum insertion attenuation
869,0 ... 894,0
Amplitude ripple
(p-p)
869,0 ... 894,0
Input return loss
869,0 ... 894,0
Output return loss
869,0 ... 894,0
Output amplitude balance
(|S
31
/S
21
|)
869,0 ... 894,0
MHz
MHz
MHz
f
C
α
max
MHz
∆α
—
—
1,7
2,0
dB
—
0,5
0,8
dB
10,0
11,0
—
dB
10,0
11,0
—
dB
MHz
-0,5
0
0,5
dB
Output phase balance
(φ(S
31
)−φ(S
21
)+180˚)
869,0 ... 894,0 MHz
Attenuation
0,0
840,0
914,0
950,0
... 840,0
... 849,0
... 950,0
...6000,0
MHz
MHz
MHz
MHz
α
-5
0
5
degree
47
47
24
45
55
50
27
55
—
—
—
—
dB
dB
dB
dB
3
Mar 04, 2004
SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B7838
881,5 MHz
T
= -30 to +85 ˚C
Z
S
= 50
Ω (unbalanced)
Z
L
= 100
Ω
(balanced)
min.
typ.
881,5
max.
—
MHz
Center frequency
Maximum insertion attenuation
869,0 ... 894,0
Amplitude ripple
(p-p)
869,0 ... 894,0
Input return loss
869,0 ... 894,0
Output return loss
869,0 ... 894,0
Output amplitude balance
(|S
31
/S
21
|)
869,0 ... 894,0
MHz
MHz
MHz
f
C
α
max
MHz
∆α
—
—
1,9
2,2
dB
—
0,7
1,0
dB
10,0
11,0
—
dB
10,0
11,0
—
dB
MHz
-0,5
0
0,5
dB
Output phase balance
(φ(S
31
)−φ(S
21
)+180˚)
869,0 ... 894,0 MHz
Attenuation
0,0
840,0
914,0
950,0
... 840,0
... 849,0
... 950,0
...6000,0
MHz
MHz
MHz
MHz
α
-5
0
5
degree
47
40
24
45
55
45
27
55
—
—
—
—
dB
dB
dB
dB
4
Mar 04, 2004
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