SAW Components
SAW RF low loss filter
Digital radio
Series/type:
Ordering code:
Date:
Version:
B1644
B39232-B1644-U510
July 27, 2010
2.6
©
EPCOS AG 2010. 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
Revision History: Changes compared to previous iteration issue
ISSUE
B1644_2.0
B1644_2.1
B1644_2.2
B1644_2.3
B1644_2.4
B1644_2.5
B1644_2.6
ORIGINATOR
A. Ma
A. Ma
A. Ma
A. Ma
A. Ma
A. Ma
A. Ma
DETAILED SEPECIFICATION CHANGES
initial release
new temperature range included (-20 to 85)
DATE
B1644
2338.75 MHz
Dec 17, 2008
Dec 09, 2009
typical value at 2320MHz changed from 6dB to
Jan 27, 2010
4dB. Min spec at output return loss removed
min output return loss added back (10.0dB),
typical value change from 10dB to 15dB
Feb 04, 2010
typical value at 2320MHz changed back to 6dB Feb 25, 2010
include human model spec and change ma-
chine model spec from 50V to 100V
include revision history page
Jul 16, 2010
Jul 27, 2010
Please read
cautions and warnings and
important notes
at the end of this document.
2
July 27, 2010
SAW Components
SAW RF low loss filter
Data sheet
Application
s
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
no matching network required
Features
s
s
s
s
s
s
s
s
s
Package size 3.0 x3.0 x 1.1 mm
3
Maximum height of 1.225 mm
Package code DCC6D
RoHS compatible
Approximate weight 0.037 g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
AEC-Q200 qualified component family
Electrostatic Sensitive Device
(ESD)
Pin configuration
s
2
s
4,6
s
1,3,5
Input unbalanced
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.
3
July 27, 2010
SAW Components
SAW RF low loss 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
Input return loss
Output 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
10.0
-7.0/-1.8
15.0
15.0
1.0
—
—
˚
dB
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.
4
July 27, 2010
SAW Components
SAW RF low loss 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
Input return loss
Output 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
10.0
-7.0/-1.8
15.0
15.0
8.0
—
—
˚
dB
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.
5
July 27, 2010
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