EPCOS B7851

SAW Components
Data Sheet B7851
SAW Components
B7851
1960,0 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Chip sized SAW package QCS5E
Features
● Low-loss RF filter for mobile telephone
0,075
0,38
0,44
0,68
5
bottom view
side view
1,4
3
1
2
0,075
●
●
●
●
●
●
●
●
0.735
PCS systems, receive path
Low amplitude ripple
Very low insertion loss
Usable passband 60 MHz
Unbalanced to balanced operation
Impedance transform from 50 Ω to 150 Ω
Suitable for GPRS class 1 to 12
Package for Surface Mount Technology (SMT)
Pb-free
top view
4
2,0
Terminals
● Ni, gold-plated
Dimensions in mm, approx. weight 0,007 g
Pin configuration
1
3,4
2,5
Input, unbalanced
Output, balanced
Case ground
Type
Ordering code
B7851
B39202-B7851-K410
Marking and Package
according to
C61157-A7-A131
Packing
according to
F61074-V8151-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
ESD voltage
DC voltage
Input Power at
GSM850, GSM900
GSM1800, GSM1900
Tx bands
T
Tstg
VMM
VDC
– 40 / + 85
– 40 / + 85
50
5
PIN
PIN
15
12
˚C
˚C
V
V
dBm
dBm
machine model, 10 pulses
peak power of GSM signal,
duty cycle 4:8
* - acc. to JESD22-A115A (Machine Model), 10 negative & 10 positive pulses
2
Jan 12, 2005
SAW Components
B7851
1960,0 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
T = 25˚C
ZS = 50Ω
ZL = 150Ω || 16nH (balanced)
Operating Temperature Range:
Terminating source impedance:
Terminating load impedance:
min.
typ.
max.
—
1960,0
—
MHz
—
1,4
2,1
dB
MHz
—
0,5
1,0
dB
1930,0 ...1990,0
MHz
—
1,7
2,0
1930,0 ...1990,0
MHz
—
1,6
2,0
Output phase balance (φ(S31)−φ(S21)+180˚)
1930,0 ... 1990,0 MHz
-10
-2/3
10
Center frequency
fC
Maximum insertion attenuation
1930,0 ... 1990,0
αmax
Amplitude ripple (p-p)
1930,0 ... 1990,0
MHz
∆α
Input VSWR
Output VSWR
Output amplitude balance (|S31/S21|)
1930,0 ... 1990,0
MHz
-1,0
-0,5/0,5
1,0
degree
dB
α
Attenuation
0,0
1510,0
1830,0
1850,0
1890,0
2010,0
2070,0
2400,0
2500,0
3860,0
3980,0
5790,0
... 1510,0
... 1830,0
... 1850,0
... 1890,0
... 1910,0
... 2070,0
... 2400,0
... 2500,0
... 3860,0
... 3980,0
... 5790,0
... 6000,0
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
3
40
30
26
23
13
13
23
35
28
45
28
40
Jan 12, 2005
43
35
30
28
18
15
26
48
35
54
48
58
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
SAW Components
B7851
1960,0 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
T = -20 to +75˚C
ZS = 50Ω
ZL = 150Ω || 16nH (balanced)
Operating Temperature Range:
Terminating source impedance:
Terminating load impedance:
min.
typ.
max.
—
1960,0
—
MHz
—
1,6
2,3
dB
MHz
—
0,6
1,3
dB
1930,0 ...1990,0
MHz
—
1,7
2,0
1930,0 ...1990,0
MHz
—
1,6
2,0
Output phase balance (φ(S31)−φ(S21)+180˚)
1930,0 ... 1990,0 MHz
-10
-3/5
10
Center frequency
fC
Maximum insertion attenuation
1930,0 ... 1990,0
αmax
Amplitude ripple (p-p)
1930,0 ... 1990,0
MHz
∆α
Input VSWR
Output VSWR
Output amplitude balance (|S31/S21|)
1930,0 ... 1990,0
MHz
-1,0
-0,6/0,5
1,0
degree
dB
α
Attenuation
0,0
1510,0
1830,0
1850,0
1890,0
2010,0
2070,0
2400,0
2500,0
3860,0
3980,0
5790,0
... 1510,0
... 1830,0
... 1850,0
... 1890,0
... 1910,0
... 2070,0
... 2400,0
... 2500,0
... 3860,0
... 3980,0
... 5790,0
... 6000,0
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
4
40
30
26
23
12
13
22
35
28
45
28
40
Jan 12, 2005
43
35
30
28
18
15
25
48
35
54
48
58
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
SAW Components
B7851
1960,0 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Transfer function
Transfer function (wide band)
5
Jan 12, 2005
SAW Components
B7851
1960,0 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 2004. 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
Jan 12, 2005