SAW Components
SAW RF filter
Digital radio
Series/type:
Ordering code:
Date:
Version:
B1644
B39232B1644U510
May 29, 2013
2.7
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EPCOS AG is a TDK Group Company.
SAW Components
SAW RF filter
Data sheet
Application
s
s
s
s
s
s
B1644
2338.75 MHz
Low-loss RF filter for digital radio
Impedance transformation from 50
Ω
to 100
Ω
Unbalanced to balanced operation
Very low insertion attenuation
Low amplitude ripple
Usable passband 12.5 MHz
Features
s
s
s
s
s
s
s
s
s
Package size 3.0 x3.0 x 1.1 mm
3
Package code DCC6D
RoHS compatible
Approximate weight 0.037 g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Lead free soldering compatible with J - STD20C
AEC-Q200 qualified component family
Electrostatic Sensitive Device
(ESD)
Pin configuration
s
2
s
4,6
s
1,3,5
Input
Output, balanced
To be grounded
4
2
1,3,5
6
Please read
cautions and warnings and
important notes
at the end of this document.
2
May 29, 2013
SAW Components
SAW RF filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –20 ˚C to +85 ˚C
Z
S
=
50
Ω
Z
L
= 100
Ω
(balanced)
min.
Nominal frequency
Maximum insertion attenuation
2332.5 ... 2345.0
Amplitude ripple
(p-p)
2332.5 ... 2345.0
f
N
α
max
MHz
∆α
MHz
—
0.4
1.6
—
2.4
3.5
—
typ.
@ 25 ˚C
2338.75
max.
—
B1644
2338.75 MHz
MHz
dB
dB
Output amplitude balance
(|S
31
/S
21
|)
2332.5 ... 2345.0 MHz
Output phase balance
(φ(S
31
) –
φ(S
21
)+180˚)
2332.5 ... 2345.0 MHz
Return loss
Attenuation
88.0
880.0
1710.0
... 108.0
... 960.0
... 1910.0
2305.0
2310.0
2315.0
2320.0
2450.0
3060.0
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
α
–1.2
-0.7/0.0
1.5
dB
–9.0
10.0
-7.0/-1.8
15.0
1.0
—
˚
dB
50
40
38
—
—
—
—
20
35
65
56
43
11
9
9
6
25
50
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
Group delay ripple
(p-p)
2332.5 ... 2345.0
MHz
—
3
15
ns
Please read
cautions and warnings and
important notes
at the end of this document.
3
May 29, 2013
SAW Components
SAW RF filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –40 ˚C to+105 ˚C
Z
S
=
50
Ω
Z
L
= 100
Ω
(balanced)
min.
Nominal frequency
Maximum insertion attenuation
2332.5 ... 2345.0
Amplitude ripple
(p-p)
2332.5 ... 2345.0
f
N
α
max
MHz
∆α
MHz
—
0.4
2.9
—
2.4
4.8
—
typ.
@ 25 ˚C
2338.75
max.
—
B1644
2338.75 MHz
MHz
dB
dB
Output amplitude balance
(|S
31
/S
21
|)
2332.5 ... 2345.0 MHz
Output phase balance
(φ(S
31
) –
φ(S
21
)+180˚)
2332.5 ... 2345.0 MHz
Return loss
Attenuation
88.0
880.0
1710.0
... 108.0
... 960.0
... 1910.0
2305.0
2310.0
2315.0
2320.0
2450.0
3060.0
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
α
–5.0
-0.7/0.0
3.5
dB
–12.0
10.0
-7.0/-1.8
15.0
8.0
—
˚
dB
50
40
38
—
—
—
—
20
35
65
56
43
11
9
9
6
25
50
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
Group delay ripple
(p-p)
2332.5 ... 2345.0
MHz
—
3
20
ns
Please read
cautions and warnings and
important notes
at the end of this document.
4
May 29, 2013
SAW Components
SAW RF filter
Data sheet
B1644
2338.75 MHz
Maximum ratings
Operable temperature range T
Storage temperature range
DC voltage
ESD voltage
Input power at
2332.5 MHz...2345.0 MHz
1)
2)
–45/+125 ˚C
–45/+125 ˚C
6
V
50
1)
V
200
2)
0
V
dBm
T
stg
V
DC
V
ESD
V
ESD
P
IN
machine model, 10 pulses
human body model, 1 pulse
source impedance 50
Ω
according to JESD22-A115B, 50V, Machine Model, 10 negative & 10 positive pulses.
acc. to JESD22-A114F (human body model), 1 negative & 1 positive pulse.
Transfer function
Please read
cautions and warnings and
important notes
at the end of this document.
5
May 29, 2013
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