EPCOS B7721

SAW Components
Data Sheet B7721
SAW Components
B7721
942,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Features
Chip sized SAW package DCS6K
■ Low-loss RF filter for mobile telephone
EGSM system, receive path
Low amplitude ripple
Usable passband 35 MHz
Unbalanced to balanced operation
Excellent symmetry
Impedance transformation from 50 Ω
to 200 Ω
■ Suitable for GPRS class 1 to 12
■ Ceramic package for Surface Mounted
Technology (SMT)
■ Pb-free
0,1
■
■
■
■
■
5
6
0,1
4
0,5
bottom view
3
2
1
0,8
side view
2,0
0,5
top view
2,5
Terminals
■ Ni, gold-plated
Dimensions in mm
Pin configuration
2
4, 6
1, 3, 5
1, 5
Type
B7721
Input, unbalanced
Balanced outputs
To be grounded
Case ground
Ordering code
Marking and Package
Packing
B39941–B7721–C910
according to
C61157-A7-A97
according to
F61074-V8153-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
ESD voltage
Input power at
GSM850, GSM900
GSM1800 and GSM1900
Tx bands
T
Tstg
VDC
VESD
PIN
– 25 / + 85
– 40 / + 85
5
100
15
2
˚C
˚C
V
V
dBm
peak power of GSM signal,
duty cycle 4:8
Oct 25, 2002
SAW Components
B7721
942,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T = 25 ± 2 ˚C
ZS = 50 Ω
ZL = 200 Ω || 68 nH
min.
Center frequency
fC
Maximum insertion attenuation
925,0 ... 960,0
αmax
MHz
typ.
max.
—
942,5
—
MHz
—
2,4
2,8
dB
dB
∆α
Amplitude ripple (p-p)
925,0 ... 960,0
MHz
—
1,1
1,5
925,0 ... 960,0
MHz
—
2,2
2,4
925,0 ... 960,0
MHz
—
2,0
2,4
Output phase balance φ(S31)−φ(S21)
925,0 ... 960,0
MHz
-5
—
5
degree
Output amplitude balance (|S31/S21|)
925,0 ... 960,0
MHz
-0,5
—
0,5
dB
20
20
20
20
38
29
50
31
—
—
—
—
dB
dB
dB
dB
50
30
20
23
50
50
50
40
40
64
39
26
30
70
72
64
66
66
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
Input VSWR
Output VSWR
Diff. to common mode suppression
925,0 ... 960,0
824,0 ... 995,0
1648,0 ... 1990,0
3296,0 ... 3980,0
Attenuation
0,0 ... 880,0
880,0 ... 905,0
905,0 ... 915,0
980,0 ...1050,0
1050,0 ...1850,0
1850,0 ...1920,0
1920,0 ...2880,0
2880,0 ...4000,0
4000,0 ...6000,0
Ssc12
MHz
MHz
MHz
MHz
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
3
Oct 25, 2002
SAW Components
B7721
942,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T = -10 to +80 ˚C
ZS = 50 Ω
ZL = 200 Ω || 68 nH
min.
Center frequency
fC
Maximum insertion attenuation
925,0 ... 960,0
αmax
MHz
typ.
max.
—
942,5
—
MHz
—
2,4
3,0
dB
dB
∆α
Amplitude ripple (p-p)
925,0 ... 960,0
MHz
—
1,1
1,7
925,0 ... 960,0
MHz
—
2,2
2,4
925,0 ... 960,0
MHz
—
2,0
2,4
Output phase balance φ(S31)−φ(S21)
925,0 ... 960,0
MHz
-5
—
5
degree
Output amplitude balance (|S31/S21|)
925,0 ... 960,0
MHz
-0,5
—
0,5
dB
20
20
20
20
38
29
50
31
—
—
—
—
dB
dB
dB
dB
50
30
20
23
50
50
50
40
40
64
37
26
29
70
72
64
66
66
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
Input VSWR
Output VSWR
Diff. to common mode suppression
925,0 ... 960,0
824,0 ... 995,0
1648,0 ... 1990,0
3296,0 ... 3980,0
Attenuation
0,0 ... 880,0
880,0 ... 905,0
905,0 ... 915,0
980,0 ...1050,0
1050,0 ...1850,0
1850,0 ...1920,0
1920,0 ...2880,0
2880,0 ...4000,0
4000,0 ...6000,0
Ssc12
MHz
MHz
MHz
MHz
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
4
Oct 25, 2002
SAW Components
B7721
942,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Transfer function (measurement)
Transfer function (wideband measurement)
5
Oct 25, 2002
SAW Components
B7721
942,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW MC WT
P.O. Box 80 17 09, 81617 Munich, GERMANY
 EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of
the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic
Manufacturers’ Association), unless otherwise agreed.
This brochure replaces the previous edition.
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 25, 2002