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2002. 10. 30 1/5
SAW FILTER
TECHNICAL DATA
KF881FU
SPECIFICATIONS FOR SAW FILTER
Revision No : 3
Band pass filters for TX 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 SYMBOL RATING UNIT
Input Signal Level
IS
max
+15 dBm
DC Permissive Voltage
V
DC
5 V
Operating Temperature Range
T
opr
-30 +85
Storage Temperature Range
T
stg
-40 +85
ELECTRICAL CHARACTERISTICS (Ta=-30 to 85 )
ITEMS SYMBOL TEST CONDITION MIN.
TYP.(25 )
MAX. UNIT
Nominal Center Frequency fo - - 881.5 - MHz
Bandwidth
BW
3dB
-
fO12.5
- - MHz
Insertion Loss
IL
PASS
fO12.5MHz
- 3.0 3.5 dB
Ripple Level
A
RIP
fO12.5MHz
- 1.0 2.0 dB
Rejection Level
IL
STOP
DC 800MHz
25 30 -
dB
800 849MHz
33 38 -
914 939MHz
20 33 -
939 1049MHz
30 34 -
1049 2000MHz
25 30 -
Voltage Standing Wave Ratio VSWR
fO12.5MHz
- 1.9 2.2 -
Input/Output Impedance
ZI(ZO)
- -
50
- -
C
DIM MILLIMETERS
A
B
CG1.15 0.12
1.50 TYP.
D
0.60 TYP.
E
0.85 TYP.
F
1.20 TYP.
FUNCTION
PIN NO
1
3
GROUND
6
4
2
5
B
A
D
3
GG
4
5
2
1
E
6
F
SC-33
_
3.0 0.1
+
_
3.0 0.1
+
_
+
SIGNAL
SIGNAL
MARKING
K H N
Lot No.
Page 2
2002. 10. 30 2/5
KF881FU
Revision No : 3
RS, RL: 50 (Internal Impedance of Source and Load)
R : 0
ZI(ZO)=RS(RL)+R
MEASUREMENT CIRCUIT
RS, RL: 50 (Internal Impedance of Source and Load)
R : 0
ZI(ZO)=RS(RL)+R
REFERENCE LEVEL TEST CIRCUIT
TEST CIRCUIT
Z
I
Z
O
R
S
SSG
RR
DET
R
L
Z
I
Z
O
SSG
RR
S
2 : INPUT 1 , 3 , 4 , 6 : GROUND 5 : OUTPUT
4
3
5
2
6
1
R
DET
R
L
Page 3
2002. 10. 30 3/5
KF881FU
Revision No : 3
S21 LOG 5dB / REF 0dB
1
2
3
4
5
1 : -2.6049dB
869MHz
2 : -2.1051dB
881.5MHz
3 : -2.5918dB
894MHz
4 : -43.602dB
849MHz
5 : -45.917dB
824MHz
CENTER 881.5 MHz
S11
SWR 1 / REF 1
CENTER 881.5 MHz
S22
SWR 1 / REF 1
SPAN 300 MHz
5
4
1 : 1.8602dB
869MHz
2 : 1.3601dB
881.5MHz
3 : 1.3398dB
894MHz
4 : 11.001dB
849MHz
5 : 18.525dB
824MHz
1
2
3
SPAN 300 MHz
4
5
1 : 1.6033dB
869MHz
2 : 1.3140dB
881.5MHz
3 : 1.5174dB
894MHz
4 : 18.398dB
849MHz
5 : 23.181dB
824MHz
1
2
3
CENTER 881.5 MHz
SPAN 300 MHz
Page 4
2002. 10. 30 4/5
KF881FU
Revision No : 3
4
1 U FS
1
3
2
5
S11
CENTER 881.5 MHz SPAN 300 MHz
1 : 26.877Ω
0.1191Ω
21.820pH
869MHz
2 : 40.729Ω
-10.402Ω
881.5MHz
3 : 58.988Ω
−13.168Ω
894MHz
4 : 4.7778Ω
-11.266Ω
849MHz
5 : 3.3994Ω
-26.450Ω
824MHz
S22
CENTER 881.5 MHz
1 U FS
4
5
1 : 31.186Ω
0.1377Ω
25.219pH
869MHz
2 : 41.365Ω
−8.9844Ω
.
.
1
881.5MHz
3 : 65.289Ω
-18.492Ω
894MHz
3
2
4 : 2.7603Ω
6.3049Ω
849MHz
5 : 2.2280Ω
−9.1548Ω
824MHz
SPAN 300 MHz
Page 5
2002. 10. 30 5/5
KF881FU
Revision No : 3
S21
START 0.030 MHz
LOG 10dB / REF 0dB
STOP 3,000
MHz
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