SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
B4942
85,38 MHz
SMD Ceramic package
QCC12
Features
s
s
s
s
s
s
Low-loss IF filter for mobile telephone
Channel selection in CDMA systems
High rejection
Balanced and unbalanced operation possible
Filter surface passivated
Package for
Surface Mounted Technology
(SMT)
Terminals
s
Gold-plated Ni
Dimensions in mm, approx. weight 0,2 g
Pin configuration
1
10
7
4
2, 6, 8, 12
3, 5, 9, 11
Input
Input ground or balanced input
Output
Output ground or balanced output
Case ground
To be grounded
Type
B4942
Ordering code
B39850-B4942-Z510
Marking and Package
according to
C61157-A7-A55
Packing
according to
F61074-V8026-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
T
stg
V
DC
P
s
– 40/+ 85
– 40/+ 85
0
10
˚C
˚C
V
dBm
2
Jul 19, 2000
SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B4942
85,38 MHz
T
= -30 to +85 ˚C
Z
S
= 1700
Ω
|| 140 nH
Z
L
= 1500
Ω
|| 142 nH
min.
typ.
85,38
9,5
max.
—
11,0
MHz
dB
Nominal frequency
Minimum insertion attenuation
f
N
—
—
(including loss in matching network without loss in balun)
α
min
Amplitude ripple
(p-p)
f
N
– 0,3 MHz
Phase Linearity
(rms)
f
N
– 0,63 MHz
∆α
...
f
N
+ 0,3 MHz
∆τ
—
0,5
1,0
dB
...
f
N
+ 0,63 MHz
α
rel
—
1,8
3,0
˚
Relative attenuation
(relative to
α
min
)
f
N
±
0,63 MHz
—
42
40
38
42
4,0
48
45
45
48
45
40
39
45
5,0
—
—
—
—
—
—
—
—
dB
f
N
– 1,7 MHz
f
N
– 0,9 MHz
f
N
+ 0,9 MHz
f
N
+ 1,7 MHz
f
N
– 25 MHz
f
N
– 1,7 MHz
f
N
+ 0,9 MHz
f
N
+ 1,7 MHz
...
...
...
...
f
N
– 1,7 MHz
f
N
– 0,9 MHz
f
N
+ 1,7 MHz
f
N
+ 25 MHz
40
37
36
40
dB
dB
dB
dB
Test matching network to bal. 200
Ω
/ unbal. 50
Ω
(element values depend on PCB layout):
C
s1
C
s2
L
p3
C
p4
L
p5
C
p6
C
s7
Note:
The matching environment is realized using M/A-COM 1:4 baluns with an insertion loss of 0,6 dB.
= 8,2 pF
= 8,2 pF
= 120 nH
= 1,2 pF
= 100 nH
= 2,2 pF
= 6,8 pF
3
Jul 19, 2000
Embedded System
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