Pass Filters. KF881U Datasheet

KF881U Filters. Datasheet pdf. Equivalent


Part KF881U
Description Band Pass Filters
Feature SAW FILTER TECHNICAL DATA Band pass filters for RX of AMPS/TDMA/CDMA. High stability and reliability.
Manufacture KEC
Datasheet
Download KF881U Datasheet


SAW FILTER TECHNICAL DATA Band pass filters for RX of AMPS/T KF881U Datasheet
Recommendation Recommendation Datasheet KF881U Datasheet




KF881U
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



KF881U
KF881U
TEST CIRCUIT
REFERENCE LEVEL TEST CIRCUIT
ZI
Rs R
SSG
0dBm
ZO
R
RL
DET
RS, RL : 50 (Internal Impedance of Source and Load)
R:0
ZI(ZO)=RS(RL)+R
MEASUREMENT CIRCUIT
Rs
SSG
ZI
R
34
25
16
ZO
R
RL
DET
2 : INPUT 1 , 3 , 4 , 6 : GROUND 5 : OUTPUT
RS, RL : 50 (Internal Impedance of Source and Load)
R:0
ZI(ZO)=RS(RL)+R
2002. 10. 30
Revision No : 3
2/5







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