B3678 [EPCOS]
SAW Components Low-Loss Filter 246,0 MHz; 声表面波元件低损耗滤波器246,0兆赫
| 型号： | B3678 |
| 厂家： | 
EPCOS |
| 描述： | SAW Components Low-Loss Filter 246,0 MHz |
| 文件： | 总5页 (文件大小：74K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SAW Components
Data Sheet B3678
SAW Components
Low-Loss Filter
Data Sheet
B3678
246,0 MHz
Ceramic package QCC8C
Features
● Low-loss IF filter
● Low insertion attenuation
● Low amplitude ripple
● Usable passband 1 MHz
● No matching network required for operation
at 200 Ω (input) and 50 Ω (output)
● Balanced input, unbalanced output
● Ceramic package for Surface Mounted
Technology (SMT)
Terminals
● Ni, gold-plated
Dimensions in mm, approx. weight 0,1 g
Pin configuration
5, 6
2
Balanced Input (200 Ω)
Output (50 Ω)
1
4, 8
3, 7
To be grounded
Case ground
Not connected
Type
Ordering code
Marking and Package
according to
Packing
according to
B3678
B39251-B3678-U310
C61157-A7-A56
F61074-V8070-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range T
Storage temperature range Tstg
– 25 / + 85
– 40 / + 85
˚C
˚C
DC voltage
Source power
VDC
Ps
0
0
V
dBm
2
Nov 17, 1999
SAW Components
Low-Loss Filter
Data Sheet
B3678
246,0 MHz
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T
= -25 to +85˚C
ZS = 200 Ω
ZL = 50 Ω
min.
typ.
max.
fN
—
246,00
—
MHz
Nominal frequency
Maximum insertion attenuation
αmax
245,5 ... 246,5 MHz
—
1,9
2,5 dB
Amplitude ripple
∆α
245,5 ... 246,5 MHz
—
—
0,2
0,1
0,4 dB
0,2 dB
in any 200 kHz span: 245,5 ... 246,5 MHz
Group delay ripple (p-p)
245,8 ... 246,2 MHz
245,5 ... 246,5 MHz
∆τ
—
—
10,0
15,0
40,0 ns
50,0 ns
Attenuation
αrel
100,0 ... 226,0 MHz
226,0 ... 236,0 MHz
256,0 ... 266,0 MHz
266,0 ... 268,0 MHz
268,0 ... 500,0 MHz
40
7
50
50
15
40
50
—
—
—
—
—
dB
dB
dB
dB
dB
7
25
35
3
Nov 17, 1999
SAW Components
Low-Loss Filter
Data Sheet
B3678
246,0 MHz
Transfer function (reduced three port meaurement)
Transfer function (reduced three port meaurement)
4
Nov 17, 1999
SAW Components
Low-Loss Filter
Data Sheet
B3678
246,0 MHz
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 compo-
nents 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.
5
Nov 17, 1999
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