ETC B684

SAW Components
Data Sheet B 684
SAW Components
B 684
Satellite Receiver Filter
480,00 MHz
Data Sheet
Metal package TO 39
Features
■ IF filter for DSB receivers
■ Constant group delay
■ Improved ESD capability by integrated shunt re-
sistors
■ Optimized group delay time
Terminals
■ Gold-plated NiFeCo alloy
Dimensions in mm, approx. weight 1,0 g
Pin configuration
1
2
3
Input
Output
Ground
(Output)
(Input)
Type
Ordering code
B 684
B39481-B 684-B510
Marking and Package
according to
C61157-A7-A28
Packing
according to
F61064-V8011-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
AC voltages
TA
Tstg
VDC
Vpp
–25/+85
–40/+85
0
5
2
˚C
˚C
V
V
between any terminals
between any terminals
Dec 14, 1999
SAW Components
B 684
Satellite Receiver Filter
480,00 MHz
Data Sheet
Characteristics
TA = 25 ˚C
ZS = 50 Ω
ZL = 50 Ω
0,25MHz
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Group delay aperture
min.
480,00 MHz α
Insertion attenuation
Reference level for the
following data
—
fc
Center frequency
typ.
20,0
max.
21,5
dB
479,00
480,00
481,00 MHz
25,6
26,6
27,6
MHz
—
—
40,0
38,0
3,0
3,2
46,0
43,0
4,6
4,6
—
—
dB
dB
dB
dB
40,0
46,0
—
dB
Pass bandwidth
αrel≤ 3 dB B3dB
αrel
Relative attenuation
466,50
493,50
430,00 ... 455,50
504,50 ... 530,00
Lower sidelobe
Upper sidelobe
MHz
MHz
MHz
MHz
Reflected wave signal suppression
0,15 µs … 2,0 µs after main pulse
∆α
Amplitude ripple (p–p)
473,50 ... 486,50 MHz
480,00 MHz τ
Group delay
Group delay ripple (p–p)
∆τ
467,00 ... 493,00 MHz
Impedance at 480,00 MHz
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
—
0,3
0,5
dB
—
227,5
—
ns
—
8,5
15
ns
—
Ω || pF
—
60 || 4,8
260 || 3,1
—
Ω || pF
—
500
—
Ω
—
500
—
Ω
—
– 86
—
ppm/K
—
DC resistance
Input: RIN
Output: ROUT
TCf
Temperature coefficient of frequency
3
Dec 14, 1999
SAW Components
B 684
Satellite Receiver Filter
480,00 MHz
Data Sheet
Frequency response
4
Dec 14, 1999
SAW Components
B 684
Satellite Receiver Filter
480,00 MHz
Data Sheet
Frequency response
Time domain response
5
Dec 14, 1999
SAW Components
B 684
Satellite Receiver Filter
480,00 MHz
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, OFW E UE
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
Dec 14, 1999