SAW Components
SAW RF low loss filter
Cable modem
Series/type:
Ordering code:
Date:
Version:
B1642
B39132-B1642-U810
June 25, 2008
2.2
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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
Source power
V
DC
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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