2
Mar 22, 2004
SAW Components
B7844
1842,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Chip sized SAW package QCS5E
1
2
4
5
3
0,075
0,075
1,4
2,0
bottom view
side view
top view
0,68
0.735
0,38
0,44
Features
q
Low-loss RF filter for mobile telephone
PCN systems, receive path
q
Very low insertion attenuation
q
Low amplitude ripple
q
Usable passband 75 MHz
q
Unbalanced to balanced operation
q
Impedance transformation from 50
to 150
q
Suitable for GPRS class 1 to 12
q
Package for Surface Mount Technology (SMT)
q
Pb-free
Terminals
q
Ni, gold-plated
Dimensions in mm, approx. weight 0,007 g
Pin configuration
1
Input, unbalanced
3,4
Output, balanced
2,5
Case ground
Electrostatic Sensitive Device (ESD)
* - acc. to JESD22-A115A (Machine Model), 10 negative & 10 positive pulses
Type
Ordering code
Marking and Package
according to
Packing
according to
B7844
B39182-B7844-K410
C61157-A7-A131
F61074-V8151-Z000
Maximum ratings
Operable temperature range
T
20 / + 75
C
Storage temperature range
T
stg
40 / + 85
C
DC voltage
V
DC
5
V
ESD voltage
V
ESD
50*
V
Machine Model, 10 pulses
Input Power at
GSM850, GSM900
GSM1800, GSM1900
Tx bands
P
IN
P
IN
15
12
dBm
dBm
peak power of GSM signal,
duty cycle 4:8
3
Mar 22, 2004
SAW Components
B7844
1842,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
T
= 25C
2 C
Terminating source impedance:
Z
S
= 50
Terminating load impedance:
Z
L
= 150
|| 15 nH (balanced)
min.
typ.
max.
Center frequency
f
C
--
1842,5
--
MHz
Maximum insertion attenuation
max
1805,0
... 1880,0
MHz
--
1,9
2,1
dB
Amplitude ripple (p-p)
1805,0
... 1880,0 MHz
--
0,6
1,0
dB
Input VSWR
1805,0
... 1880,0 MHz
--
2,1
2,6
Output VSWR
1805,0
... 1880,0 MHz
--
2,0
2,6
Output amplitude balance
(|
S
31
/
S
21
|)
1805,0
...1880,0
MHz
-1,0
-0,5 / +0,5
1,0
dB
Output phase balance (
(
S
31
)-(
S
21
)+180
)
1805,0
...1880,0
MHz
-10
-1 / +3
10
Attenuation
0,0
... 902,0 MHz
30
50
--
dB
902,0
... 940,0 MHz
45
50
--
dB
940,0
... 1705,0 MHz
28
33
--
dB
1705,0
... 1785,0 MHz
12
16
--
dB
1920,0
... 1980,0 MHz
15
18
--
dB
1980,0
... 2030,0
MHz
24
28
--
dB
2030,0
... 2400,0
MHz
28
32
--
dB
2400,0
... 2500,0
MHz
32
37
--
dB
2500,0
... 2775,0
MHz
27
30
--
dB
2775,0
... 2880,0 MHz
40
47
--
dB
2880,0
... 3610,0
MHz
28
46
--
dB
3610,0
... 3760,0
MHz
40
46
--
dB
3760,0
... 5415,0
MHz
28
47
--
dB
5415,0
... 5640,0
MHz
35
44
--
dB
5640,0
... 6000,0
MHz
28
44
--
dB
4
Mar 22, 2004
SAW Components
B7844
1842,5 MHz
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
T
= -20 to +75 C
Terminating source impedance:
Z
S
= 50
Terminating load impedance:
Z
L
=150
|| 15 nH (balanced)
min.
typ.
max.
Center frequency
f
C
--
1842,5
--
MHz
Maximum insertion attenuation
max
1805,0
... 1880,0
MHz
--
1,9
2,3
dB
Amplitude ripple (p-p)
1805,0
... 1880,0 MHz
--
0,6
1,3
dB
Input VSWR
1805,0
... 1880,0 MHz
--
2,1
2,6
Output VSWR
1805,0
... 1880,0 MHz
--
2,0
2,6
Output amplitude balance
(|
S
31
/
S
21
|)
1805,0
...1880,0
MHz
-1,0
-0,7 / +0,5
1,0
dB
Output phase balance (
(
S
31
)-(
S
21
)+180
)
1805,0
...1880,0
MHz
-10
-1 / +4
10
Attenuation
0,0
... 902,0 MHz
30
50
--
dB
902,0
... 940,0 MHz
45
50
--
dB
940,0
... 1705,0 MHz
28
33
--
dB
1705,0
... 1785,0 MHz
10
14
--
dB
1920,0
... 1980,0 MHz
15
18
--
dB
1980,0
... 2030,0
MHz
23
28
--
dB
2030,0
... 2400,0
MHz
28
32
--
dB
2400,0
... 2500,0
MHz
32
37
--
dB
2500,0
... 2775,0
MHz
27
30
--
dB
2775,0
... 2880,0 MHz
40
47
--
dB
2880,0
... 3610,0
MHz
28
46
--
dB
3610,0
... 3760,0
MHz
40
46
--
dB
3760,0
... 5415,0
MHz
28
47
--
dB
5415,0
... 5640,0
MHz
35
44
--
dB
5640,0
... 6000,0
MHz
28
44
--
dB
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