678 MHz SAW Filter
26 MHz Bandwidth
Part Number SF0678BA03157S
IDT • SAW Products • 324 Clark Street, Worcester, MA 01606, USA • Ph 1-508-852-5400 • Fax 1-508-852-8456
www.idt.com
DSSF0678BA03157S Rev - 02-Dec-2007
ECN 35687 Page 1 of 3
DESCRIPTION
• 678 MHz SAW bandpass filter with 26 MHz bandwidth.
• 3.8 x 3.8 mm LCC package.
• RoHS compliant.
TYPICAL PERFORMANCE
Horizontal: Frequency - Center : 675 MHz
Span : 300 MHz
Vertical: Magnitude : 10 dB/div
Magnitude : 1 dB/div
Group Delay : 20 ns/div
678 MHz SAW Filter
26 MHz Bandwidth
Part Number SF0678BA03157S
IDT • SAW Products • 324 Clark Street, Worcester, MA 01606, USA • Ph 1-508-852-5400 • Fax 1-508-852-8456
www.idt.com
DSSF0678BA03157S Rev - 02-Dec-2007
ECN 35687 Page 2 of 3
SPECIFICATION
Parameter Min Typ Max Units
Nominal Center Frequency FC - 678 - MHz
Passband 665 - 691 MHz
Maximum Insertion Loss over the Passband - 4.0 4.2 dB
Absolute Delay - 35 - ns
Rejection (0.3 to 603 MHz) 1 40 51 - dB
Rejection (603 to 652 MHz) 1 10 23 - dB
Rejection (704 to 753 MHz) 1 10 14 - dB
Rejection (753 to 978 MHz) 1 40 53 - dB
Rejection (978 to 1128 MHz) 1 50 54 - dB
Amplitude Variation over the Passband - 1.6 1.7 dB p-p
Group Delay Ripple in Passband - 20 100 ns p-p
Source/Load Impedance 50 ohms
Temperature Coefficient of Frequency, Tc 2 - -70 - ppm/˚C
Ambient Temperature (Tref) - 23 - ˚C
Notes: 1. Absolute level
2. Typical shift of filter frequency response with temperature is ∆f = (T-Tref)*Tc*Fc.
MAXIMUM RATINGS
Parameter Min Max Units
Storage Temperature Range -45 85 ˚C
Operating Temperature Range -20 55 ˚C
Input Power Level - 10 dBm
MATCHING CIRCUIT
Notes
• 50 ohm single ended operation.
• Matching components are not required.
678 MHz SAW Filter
26 MHz Bandwidth
Part Number SF0678BA03157S
IDT • SAW Products • 324 Clark Street, Worcester, MA 01606, USA • Ph 1-508-852-5400 • Fax 1-508-852-8456
www.idt.com
DSSF0678BA03157S Rev - 02-Dec-2007
ECN 35687 Page 3 of 3
PACKAGE OUTLINE SUGGESTED FOOTPRINT
All specifications are believed to be accurate and reliable. However, MNC reserves the right to make changes without notice.
© 2007 All rights reserved.
ISO 9001
Registered
Package Material:
Body: Al2O3 ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 1 µm min,
over a 1.3-8.9 µm Ni plating
Units: mm
Tolerances are ±0.15 mm except where
indicated.
Pad Configuration:
Input: 2
Output: 5
Ground: 1, 3, 4, 6
