SAW Components
SAW RF low loss filter
Cable modem
Series/type:
Ordering code:
Date:
Version:
B1642
B39132-B1642-U810
June 25, 2008
2.2
©
EPCOS AG 2008. Reproduction, publication and dissemination of this data sheet, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
SAW Components
SAW RF low loss filter
Data Sheet
Application
s
s
s
s
s
s
B1642
1250.0 MHz
Low-loss RF filter for cable modem
Balanced to balanced operation
Low insertion attenuation
Low amplitude ripple
Low group delay ripple
Usable passband 96.0 MHz
Features
s
s
s
s
s
s
s
s
Package size 3.0 x 3.0 x 1.1 mm
3
Maximum height of 1.225 mm
Package code QCC8D
RoHS compatible
Approximate weight 0.037 g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Electrostatic Sensitive Device
(ESD)
0.6
1
3
1.5
1.5
7
5
bottom view
1.8
1.1
side view
3.0
top view
3.0
Pin configuration
s
s
s
s
s
s
1
2
5
6
3,7
4,8
Input
Input
Output
Output
To be grounded
Case ground, to be grounded
Please read
cautions and warnings and
important notes
at the end of this document.
2
June 25, 2008
SAW Components
SAW RF low loss filter
Data Sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
T
=
0 ˚C to +70 ˚C
Ω
Ω
Ω
Ω
(differential)
(common)
(differential)
(common)
Z
Sd
=
180
Z
Sc
=
45
and matching network
Z
Ld
=
180
Z
Lc
=
45
and matching network
B1642
1250.0 MHz
Terminating load impedance:
min.
Nominal frequency
Maximum insertion attenuation
1202.0 ... 1298.0
f
N
α
max
MHz
∆α
—
∆α
—
∆α
—
∆τ
—
∆τ
—
α
54.0
1052.0
1152.0
1450.0
2429.6
...
...
...
...
...
1052.0
1152.0
1170.0
2429.6
6000.0
MHz
MHz
MHz
MHz
MHz
50
48
38
40
65
—
—
typ.
@ 25 ˚C
1250.0
max.
—
MHz
7.4
1.0
0.6
0.7
28.0
8.0
1.5
1.0
1.1
40.0
dB
dB
dB
dB
ns
Amplitude ripple (p-p)
1202.0 ... 1298.0 MHz
Amplitude ripple in any 6MHz band(p-p)
1202.0 ... 1298.0 MHz
Amplitude ripple in any 8MHz band(p-p)
1202.0 ... 1298.0 MHz
Group delay ripple (p-p)
1202.0 ... 1298.0 MHz
Group delay ripple in any 8MHz band
(p-p)
1202.0 ... 1298.0 MHz
Attenuation
13.0
25.0
ns
58
55
50
47
70
—
—
—
—
—
dB
dB
dB
dB
dB
Matching network
(element values depend on PCB layout)
L
s1
C
p1
1
6
L
s6
C
p2
2
5
L
s2
L
s5
L
s1
=10.0 nH
L
s2
=11.0 nH
C
p1
= 1.6 pF
L
s5
= 9.1 nH
L
s6
=10.0 nH
C
p2
= 1.1 pF
Please read
cautions and warnings and
important notes
at the end of this document.
3
June 25, 2008
SAW Components
SAW RF low loss filter
Data Sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
T
=
-40 ˚C to +85 ˚C
Ω
Ω
Ω
Ω
(differential)
(common)
(differential)
(common)
Z
Sd
=
180
Z
Sc
=
45
and matching network
Z
Ld
=
180
Z
Lc
=
45
and matching network
B1642
1250.0 MHz
Terminating load impedance:
min.
Nominal frequency
Maximum insertion attenuation
1202.0 ... 1298.0
f
N
α
max
MHz
∆α
—
∆α
—
∆α
—
∆τ
—
∆τ
—
α
54.0
1052.0
1152.0
1450.0
2429.6
...
...
...
...
...
1052.0
1152.0
1170.0
2429.6
6000.0
MHz
MHz
MHz
MHz
MHz
50
48
38
40
65
—
—
typ.
@ 25 ˚C
1250.0
max.
—
MHz
7.4
1.0
0.6
0.7
28.0
8.6
2.2
1.5
1.7
40.0
dB
dB
dB
dB
ns
Amplitude ripple (p-p)
1202.0 ... 1298.0 MHz
Amplitude ripple in any 6MHz band(p-p)
1202.0 ... 1298.0 MHz
Amplitude ripple in any 8MHz band(p-p)
1202.0 ... 1298.0 MHz
Group delay ripple (p-p)
1202.0 ... 1298.0 MHz
Group delay ripple in any 8MHz band
(p-p)
1202.0 ... 1298.0 MHz
Attenuation
13.0
30.0
ns
58
55
50
47
70
—
—
—
—
—
dB
dB
dB
dB
dB
Matching network
(element values depend on PCB layout)
L
s1
C
p1
1
6
L
s6
C
p2
2
5
L
s2
L
s5
L
s1
=10.0 nH
L
s2
=11.0 nH
C
p1
= 1.6 pF
L
s5
= 9.1 nH
L
s6
=10.0 nH
C
p2
= 1.1 pF
Please read
cautions and warnings and
important notes
at the end of this document.
4
June 25, 2008
SAW Components
SAW RF low loss filter
Data Sheet
B1642
1250.0 MHz
Maximum ratings
Operable temperature range T
Storage temperature range Tstg
DC voltage
V
DC
Source power
P
S
–40/+85
–40/+85
0
0
˚C
˚C
V
dBm
source impedance 180
Ω
Transfer function
S
dd21
Please read
cautions and warnings and
important notes
at the end of this document.
5
June 25, 2008
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