1842.5 MHz SAW Filter
75 MHz Bandwidth
Part Number: SF1843BA02542S
IDT • SAW Products • 324 Clark Street, Worcester, MA 01606, USA • Ph 1-508-852-5400 • Fax 1-508-852-8456
www.idt.com DSSF1843BA02542S Rev X2 2-May-2007
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
IDT • SAW Products • 324 Clark Street, Worcester, MA 01606, USA • Ph 1-508-852-5400 • Fax 1-508-852-8456
www.idt.com DSSF1843BA02542S Rev X2 2-May-2007
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 (ІS31/S21І) -2 0 2 dB
Output Phase Balance (Ф(S31)-Ф(S21)+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
IDT • SAW Products • 324 Clark Street, Worcester, MA 01606, USA • Ph 1-508-852-5400 • Fax 1-508-852-8456
www.idt.com DSSF1843BA02542S Rev X2 2-May-2007
Page 3 of 3
PACKAGE OUTLINE
MARKING
ISO 9001
Registered
All specifications are believed to be accurate and reliable. However, MNC reserves the right to make changes without notice.
© 2007 All rights reserved.
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: Al2O3 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
