SAW Filters for Infrastructure Systems
Series/Type:
B3684
The following products presented in this data sheet are being withdrawn.
Ordering Code
B39391B3684U310
Substitute Product
Date of Withdrawal
2008-02-07
Deadline Last
Orders
2008-07-31
Last Shipments
2008-10-31
For further information please contact your nearest EPCOS sales office, which will also support you in selecting a
suitable substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.
SAW Components
B3684
Low-Loss Filter
387,5 MHz
Data Sheet
Ceramic package QCC8C
Features
Low-loss filter (WBN) for Trunked Radio
Usable bandwidth 5 MHz
No matching required for operation at 50 Ω
Package for Surface Mounted Technology
(SMT)
● Hermetically sealed ceramic package
●
●
●
●
Terminals
● Gold-plated
Dimensions in mm, approx. weight 0,1 g
Pin configuration
2
3
6
7
1, 5
4, 8
Input
Input ground
Output
Output ground
Ground
Case ground
Type
Ordering code
B3684
B39391-B3684-U310
Marking and Package
according to
C61157-A7-A56
Packing
according to
F61064-V8070-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
Tstg
VDC
Ps
– 25/+ 75
– 40/+ 85
0
10
2
˚C
˚C
V
dBm
source impedance 50 Ω
Oct 17, 2000
SAW Components
B3684
Low-Loss Filter
387,5 MHz
Data Sheet
Characteristics
Operating temperature:
Terminating source impedance:
Terminating load impedance:
T = +15 ... +35 ˚C
ZS = 50 Ω
ZL = 50 Ω
Nominal frequency
fN
Maximum insertion attenuation
385,0 MHz ... 390,0 MHz
αmax
Amplitude ripple (p-p)
385,0 MHz ... 390,0 MHz
∆α
Return loss (Input and Output)
385,0 MHz ... 390,0 MHz
min.
typ.
max.
—
387,5
—
—
3,2
3,5
dB
—
0,9
1,4
dB
11,0
12,5
MHz
—
dB
180
ns
τ
Group delay
385,0 MHz ... 390,0 MHz
—
Deviation from lin. phase (in 1 MHz bandwidth) ∆ϕ
385,0 MHz ... 390,0 MHz
Absolute attenuation
45,0 MHz ... 81,5 MHz
222,0 MHz ... 300,0 MHz
303,5 MHz ... 345,0 MHz
395,0 MHz ... 396,0 MHz
396,0 MHz ... 400,0 MHz
407,5 MHz ... 475,0 MHz
475,0 MHz ... 1025,0 MHz
1025,0 MHz ... 2000,0 MHz
2000,0 MHz ... 4000,0 MHz
αabs
Temperature coefficient of frequency
TCf
3
—
140
0,9
5
˚
40
40
20
28
30
30
40
20
15
70
60
45
30
32
40
45
30
17
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
– 36
—
ppm/K
Oct 17, 2000
SAW Components
B3684
Low-Loss Filter
387,5 MHz
Data Sheet
Characteristics
Operating temperature:
Terminating source impedance:
Terminating load impedance:
T = -25 ... +75 ˚C
ZS = 50 Ω
ZL = 50 Ω
Nominal frequency
fN
Maximum insertion attenuation
385,0 MHz ... 390,0 MHz
αmax
Amplitude ripple (p-p)
385,0 MHz ... 390,0 MHz
∆α
Return loss (Input and Output)
385,0 MHz ... 390,0 MHz
min.
typ.
max.
—
387,5
—
—
3,5
4,0
dB
—
1,1
2,0
dB
11,0
12,5
MHz
—
dB
180
ns
τ
Group delay
385,0 MHz ... 390,0 MHz
—
Deviation from lin. phase (in 1 MHz bandwidth) ∆ϕ
385,0 MHz ... 390,0 MHz
TCf
Temperature coefficient of frequency
4
—
—
Oct 17, 2000
140
1,3
– 36
5
—
˚
ppm/K
SAW Components
B3684
Low-Loss Filter
387,5 MHz
Data Sheet
Transfer function
Transfer function (pass band; +15 ˚C ... +35 ˚C)
5
Oct 17, 2000
SAW Components
B3684
Low-Loss Filter
387,5 MHz
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, OFW E NK
P.O. Box 80 17 09, D-81617 München
EPCOS AG 1999. All Rights Reserved.
As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and circuits implemented within components or
assemblies.
The information describes the type of component and shall not be considered as assured
characteristics.
Terms of delivery and rights to change design reserved.
For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or
the international representatives.
Due to technical requirements components may contain dangerous substances. For information on
the type in question please also contact one of our sales offices.
6
Oct 17, 2000