Integrated
Circuit
Systems, Inc.
TYPICAL PERFORMANCE
266.667 MHz SAW Bandpass Filter
0.27 MHz bandwidth
Part Number SF0266CN02358S
Horizontal: 2 MHz/div
Vertical (from top):
Magnitude
Magnitude
Phase Linearity
10
1
5
dB/div
dB/div
deg/div
SPECIFICATION
Parameter
Nominal Center frequency (Fc, 8dB points)
Insertion Loss
Lower 1 dB band Edge
Upper 1 dB Band Edge
Amplitude Ripple over Fc +/-135 kHz
Phase Ripple (Fc +/- 135 kHz)
Group delay Ripple (Fc +/- 135 kHz)
Absolute Delay
Lower 20 dB Band Edge
Upper 20 dB Band Edge
Rejection (253.34 to 265.317 MHz)
2
Rejection (268.017 to 280 MHz)
2
Rejection (280 MHz to 1.5*Fc MHz)
2
Rejection (0.5*Fc to 253.34 MHz)
2
Source and Load Impedance
Input Power
Operating Temperature Range
Notes:
Min
Typ
266.667
Max
7.5
266.532
266.802
1
10
300
0.75
265.317
268.017
20
20
30
30
50
15
23
+10
35
Units
MHz
dB
MHz
MHz
dB p-p
deg p-p
ns p-p
us
MHz
MHz
dB
dB
dB
dB
Ω
dBm
°
C
1. Unless noted otherwise, all specifications apply over the operating temperature with
filter matched to 50 ohms and measured with a 50 ohm network analyzer.
2. Rejection levels are measured from the minimum loss in the passband.
3. All frequency specifications are referenced to the nominal center frequency, Fc.
Rev X2 21-Apr-05
Page 1 of 2
Integrated Circuit Systems
•
Surface Acoustic Wave Products
324 Clark Street, Worcester, MA 01606, USA
•
Phone 508-852-5400
•
Fax 508-852-8456
www.icst.com
QF12/3
Integrated
Circuit
Systems, Inc.
PACKAGE OUTLINE
266.667 MHz SAW Bandpass Filter
0.27 MHz bandwidth
Part Number SF0266CN02358S
Units:
mm
Pad Configuration:
Input: 10
Input Return: 12
Output: 4
Output Return: 6
Ground: 1,2,3,5,7,8,9,11
MATCHING CIRCUIT
Ls1
10
Cp1
12
Typical component values:
(Minimum inductor Q = 40)
Ls1 = 36 nH
Cp1 = 22 pF
6
4
Ls2
Cp2
Ls2 = 47 nH
Cp2 = 22 pF
Notes
•
Maximum 2% tolerance matching components shall be used.
•
Tuning values shown are for reference only. Optimum values may change depending upon board layout.
ISO 9001
Registered
Rev X2 21-Apr-05
Page 2 of 2
Integrated Circuit Systems
•
Surface Acoustic Wave Products
324 Clark Street, Worcester, MA 01606, USA
•
Phone 508-852-5400
•
Fax 508-852-8456
www.icst.com
QF12/3
DSP 与 ARM 处理器
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