SAW Components
Low-Loss Filter
Data Sheet
B4834
188,0 MHz
SMD ceramic package
QCC12B
Features
q
Low-loss IF filter for mobile telephone
q
Channel selection in GSM, PCN systems
q
Ceramic SMD package
q
Low group delay ripple
Terminals
q
Gold-plated Ni
Dimensions in mm, approx. weight 0,2 g
Pin configuration
10,12
4,6
8
3,9
1,7
2
Input, balanced or unbalanced
Output, balanced or unbalanced
External Coil
Case - ground
To be grounded
Not connected
Type
B4834
Ordering code
B39191-B4834-Z910
Marking and Package
according to
C61157-A7-A52
Packing
according to
F61074-V8038-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
T
stg
V
DC
P
s
– 25/+ 75
– 40/+ 85
0
10
˚C
˚C
V
dBm
Preliminary format of data sheet
Terms of delivery and rights to change design reserved.
Page 1 of 4
OFW EM EU
May 5, 1998
SAW Components
Low-Loss Filter
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
External coil
B4834
188,0 MHz
T
Z
S
Z
L
L
C
= -25 ˚C to + 75 ˚C
= 910
Ω
|| 1,5 pF
= 910
Ω
|| 1,5 pF
= 150 nH
min.
typ.
188,0
6,0
max.
—
6,5
MHz
dB
Nominal frequency
Minimum insertion attenuation
(including losses in the matching network)
Variation in insertion loss
Amplitude ripple
(p-p)
f
N
-80,0 kHz .. f
N
+80,0 kHz
Group delay
at f
N
Group delay ripple
(p-p)
f
N
-80,0 kHz .. f
N
+80,0 kHz
Relative attenuation
(relative to
α
min
)
f
N
±
200 kHz ... f
N
±
300 kHz
f
N
±
300 kHz ... f
N
±
400 kHz
f
N
±
400 kHz ... f
N
±
600 kHz
f
N
±
600 kHz ... f
N
±
1,6 MHz
f
N
±
1,6 MHz ... f
N
±
3,0 MHz
f
N
±
3,0 MHz ... f
N
±
75,0MHz
f
N
- 12,0 MHz
Temperature coefficient of frequency
1)
Turnover temperature
1)
Temperature
f
N
α
min
—
5,2
—
∆α
—
τ
∆τ
—
α
rel
5
14
22
30
36
42
50
2,2
—
1,3
dB
1,0
2,6
3,0
3,0
dB
µs
0,5
1,0
µs
8
20
30
40
50
50
55
– 0,033
35
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
ppm/K
2
˚C
TC
f
T
0
—
—
dependence of
f
c
:
f
c
(T) =
f
c
(T
0
)(1 +
TC
f
(T –
T
0
)
2
)
Preliminary format of data sheet
Terms of delivery and rights to change design reserved.
Page 2 of 4
OFW EM EU
May 5, 1998
SAW Components
Low-Loss Filter
Data Sheet
Test matching network
(element values depend on pcb layout)
B4834
188,0 MHz
Source impedance Z
S
=50
Ω,
load impedance Z
L
=50
Ω
C
s1
= 4,7 pF
C
s2
= 7,4 pF
L
p1
= 120 nH
L
p2
= 120 nH
C
s3
= 7,4 pF
C
s4
= 4,7 pF
L
c
= 150 nH
Preliminary format of data sheet
Terms of delivery and rights to change design reserved.
Page 3 of 4
OFW EM EU
May 5, 1998
SAW Components
Low-Loss Filter
Data Sheet
Transfer function
(normalized plot)
B4834
188,0 MHz
Preliminary format of data sheet
Terms of delivery and rights to change design reserved.
Page 4 of 4
OFW EM EU
May 5, 1998
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