1842.5 MHz SAW Filter
75 MHz Bandwidth
Part Number: SF1843BA02542S
Spectrum Microwave
00 Nickerson Road, Marlborough MA, USA •
••
• Phone 1-508-251-6400 •
••
• Fax 1-508-251-6401
www.SpectrumMicrowave.com DSSF1843BA02542S Rev X3 28-July-2010
Page 1 of 3
DESCRIPTION
• 1842.5 MHz SAW bandpass filter with 75 MHz bandwidth for mobile communications.
• 2.5 x 2.0 mm ceramic LCC package.
• RoHS compliant.
TYPICAL PERFORMANCE
Frequency Response
VSWR (Unbalanced Input) VSWR (Balanced Output)
1842.5 MHz SAW Filter
75 MHz Bandwidth
Part Number: SF1843BA02542S
Spectrum Microwave
00 Nickerson Road, Marlborough MA, USA •
••
• Phone 1-508-251-6400 •
••
• Fax 1-508-251-6401
www.SpectrumMicrowave.com DSSF1843BA02542S Rev X3 28-July-2010
Page 2 of 3
SPECIFICATION
Parameter Min Typ Max Units
Center Frequency (Fc)
1
- 1842.5 - MHz
Insertion Loss (1805 to 1880 MHz) - 2.9 4.0 dB
Amplitude Ripple (1805 to 1880 MHz) 1.0 2.1 dB p-p
Input VSWR (1805 to 1880 MHz) - 2.1 2.7 :1
Output VSWR (1805 to 1880 MHz) - 2.0 2.7 :1
Attenuation (1 to 1200 MHz)
2
40 49 - dB
Attenuation (1200 to 1705 MHz)
2
30 34 - dB
Attenuation (1705 to 1785 MHz)
2
9 14 - dB
Attenuation (1920 to 1980 MHz)
2
10 22 - dB
Attenuation (1980 to 2200 MHz)
2
20 23 - dB
Attenuation (2200 to 3000 MHz)
2
30 36 - dB
Attenuation (3000 to 6000 MHz)
2
40 44 - dB
Output Amplitude Balance (ІS
31
/S
21
І) -2 0 2 dB
Output Phase Balance (Ф(S
31
)-Ф(S
21
)+180˚) -12 0 12 deg
Source Impedance 50 ohms unbalanced
Load Impedance 200 ohms balanced
Ambient Temperature
- 25 -
°
C
Notes: 1. Fixed reference point.
2. Reference level from 0 dB.
3. Symmetry in band, referenced to the matched operating condition, 1805 to 1880 MHz).
MAXIMUM RATINGS
Parameter Min Typ Max Units
Storage Temperature Range
-40 25 85 ˚C
Operating Temperature Range
-20 25 75 ˚C
Input Power Level
- 10 13 dBm
MATCHING CIRCUIT
Notes:
1. Recommend use of 2% tolerance matching component. Typical Inductor Q=45.
2. Component value is for reference only and may change depending on board layout.
1842.5 MHz SAW Filter
75 MHz Bandwidth
Part Number: SF1843BA02542S
Spectrum Microwave
00 Nickerson Road, Marlborough MA, USA •
••
• Phone 1-508-251-6400 •
••
• Fax 1-508-251-6401
www.SpectrumMicrowave.com DSSF1843BA02542S Rev X3 28-July-2010
Page 3 of 3
PACKAGE OUTLINE
MARKING
ISO 9001
Registered
Units:
mm
Typical tolerances are ±0.15 mm
except where indicated.
Pad Configuration:
Unbalanced Input: G
Balanced Output: C
Balanced Output: D
Ground: B, E
Package Material:
Body: Al
2
O
3
ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 1 µm min,
over a 1.3-8.9 µm Ni plating
Model Identification: IC = SF1843BA02542S
Week Code: A through Z followed by a through z equals 52 weeks.
Year Code: A = 2001, B=2002, C=2003, to J=2010 (Code A through J
repeats every 10 years)
I C
A B
make changes without notice.
© 2010 All rights reserved.