130.380 MHz CDMA
Preliminary Specifications
Typical Performance
10
0
-10
-20
-30
-40
-50
-60
-70
125.38
126.38
127.38
128.38
129.38
130.38
131.38
132.38
133.38
134.38
135.38
Horizontal: 1 MHz/Div
Vertical: 10 dB/Div
Horizontal: 300 kHz/Div
Vertical: 1 dB/Div
Vertical: 25 nsec/Div
Input
Output
Subsrciber Transmitter Filter
Part Number 855712
50Ω
Horizontal: 40 MHz/Div
Vertical: 10 dB/Div
50Ω
Parameter
(1)
Center Frequency, f
o
Insertion Loss at f
o
Lower 3 dB Bandedge
Upper 3 dB Bandedge
Lower 25 dB Bandedge
Upper 25 dB Bandedge
Phase Linearity
Group Delay Variation
Passband Ripple
(3)
Ultimate Rejection
Source/Load Characteristics
Substrate Material
Specifications
Unit
Minimum
MHz
dB
MHz
MHz
MHz
MHz
degrees
nsec
dB
dB
Ω
-
°C
-
-
-
130.995
128.4
-
-
-
-
54
-
-
Typical
130.38
9.3
(2)
129.558
131.126
128.591
132.202
1.554
36
0
70
50/50 to 1K/1K
Single-ended or Differential
Quartz
25
Maximum
-
12
129.765
-
-
132.36
7
150
1
-
-
-
Operating Temperature Range
Sawtek Inc.
Package
(5)
Outline
-30
Matching Configuration
75
Telephone: (407) 886-8860
Fax: (407) 886-7061
8/25/99
130.380 MHz CDMA
Preliminary Specifications
NOTES
(1) Sawtek's production specifications reflect the typical performance in a 50 ohm single-ended system. This filter can be
used in both single-ended and/or differential modes at each port. In addition, similar performance can be achieved in
source and load impedances ranging from 50 to 1000 ohms.
(2) The typical insertion loss may vary slightly depending on actual source and load impedances, matching configuration
and PC board layout. In a 1000 ohm source and 1000 ohm load, single-ended or balanced configuration, the typical
insertion loss is 10.2 dB.
(3) Passband Ripple is defined to be maximum peak to adjacent valley amplitude change within the passband excluding roll-
offs.
(4) Inductors with
±2%
tolerance may be required.
(5) In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical
compliance over temperature.
Subsrciber Transmitter Filter
(Cont.)
Part Number 855712
Matching Configurations
a
50Ω Single-ended
L1 = 270 nH , L2 = 220 nH
C1 = 39 pf , C2 = 82 pf , C3 = 47 pf, C4 = 39pf
Package Outline
SMP-28
Dimensions shown are in
millimeters (inches)
Sawtek Inc.
Telephone: (407) 886-8860
Fax: (407) 886-7061
8/25/99
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
