SAW FILTER
TECHNICAL DATA
Band pass filters for RX of AMPS/TDMA/CDMA.
High stability and reliability with good
performance and no adjustment.
Wide and sharp pass band characteristics.
Low insertion loss and deep stop band
attenuation for interference.
KF881U
SPECIFICATIONS FOR SAW FILTER
B
A
C
DIM MILLIMETERS
_
A
3.0 + 0.1
_
3.0 + 0.1
B
_
C
1.15 + 0.12
D
1.50 TYP.
E
0.60 TYP.
0.85 TYP.
F
G
1.20 TYP.
MAXIMUM RATINGS
ITEM
Input Signal Level
DC Permissive Voltage
Operating Temperature Range
Storage Temperature Range
SYMBOL
IS
max
V
DC
T
opr
T
stg
RATING
+10
5
-30 +85
-40 +85
UNIT
dBm
G
D
PIN NO
3
4
FUNCTION
GROUND
SIGNAL
SIGNAL
1
4
2
5
3
6
V
G
2
1
5
6
E
F
SC-33
ELECTRICAL CHARACTERISTICS (Ta=-30 to 85 )
ITEMS
Nominal Center Frequency
Bandwidth
Insertion Loss
Ripple Level
SYMBOL
fo
BW
3dB
IL
PASS
A
RIP
f
O
f
O
DC
779
Rejection Level
IL
STOP
914
970
1049
Voltage Standing Wave Ratio
Input/Output Impedance
VSWR
Z
I
(Z
O
)
f
O
TEST CONDITION
-
-
12.5MHz
12.5MHz
779MHz
849MHz
970MHz
1049MHz
2000MHz
12.5MHz
-
f
O
MIN.
-
12.5
-
-
50
45
20
50
40
-
-
TYP.(25
881.5
-
3.0
0.8
55
48
24
52
43
1.5
50
-
2.0
-
-
-
)
MAX.
-
-
3.5
1.6
-
-
-
UNIT
MHz
MHz
dB
dB
dB
MARKING
K H D
Lot No.
2002. 10. 30
Revision No : 3
1/5