KF881U Datasheet PDF - KEC

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KF881U
KEC

Part Number KF881U
Description Band Pass Filters
Page 5 Pages

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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.
MAXIMUM RATINGS
ITEM
Input Signal Level
DC Permissive Voltage
Operating Temperature Range
Storage Temperature Range
SYMBOL
ISmax
VDC
Topr
Tstg
RATING
+10
5
-30 +85
-40 +85
UNIT
dBm
V
KF881U
SPECIFICATIONS FOR SAW FILTER
B
DIM MILLIMETERS
A 3.0+_ 0.1
B 3.0+_ 0.1
C 1.15+_ 0.12
A C D 1.50 TYP.
E 0.60 TYP.
F 0.85 TYP.
G 1.20 TYP.
D
34
25
16
E
F
PIN NO
13
46
2
5
FUNCTION
GROUND
SIGNAL
SIGNAL
SC-33
ELECTRICAL CHARACTERISTICS (Ta=-30 to 85 )
ITEMS
SYMBOL
TEST CONDITION
Nominal Center Frequency
fo
-
Bandwidth
Insertion Loss
Ripple Level
BW3dB
ILPASS
ARIP
-
fO 12.5MHz
fO 12.5MHz
DC 779MHz
779 849MHz
Rejection Level
ILSTOP
914 970MHz
970 1049MHz
1049 2000MHz
Voltage Standing Wave Ratio
Input/Output Impedance
VSWR
ZI(ZO)
fO 12.5MHz
-
MIN. TYP.(25 )
- 881.5
fO 12.5
-
-
3.0
- 0.8
50 55
45 48
20 24
50 52
40 43
- 1.5
- 50
MAX.
-
-
3.5
1.6
-
-
-
-
2.0
-
UNIT
MHz
MHz
dB
dB
dB
-
-
MARKING
KHD
2002. 10. 30
Revision No : 3
Lot No.
1/5

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