70 MHz SAW Filter
2 MHz Bandwidth
Part Number SF0070BA03049S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0070BA03049S Rev B 15-Feb-2010
ECN 36650 Page 1 of 3
65 70 75
DESCRIPTION
• 70 MHz SAW bandpass filter with 2 MHz bandwidth.
• 19 X 6.5 mm ceramic LCC package.
• RoHS compliant.
TYPICAL PERFORMANCE
Vertical from top: Relative Magnitude : 10 dB/div
Relative Magnitude : 1 dB/div
Phase Linearity : 10 deg/div
Group Delay Deviation: 200 ns/dev
MAXIMUM RATING
Parameter Min Max Units
Operating Temperature Range 0 70 ˚C
Storage Temperature Range -40 85 ˚C
Input Power Level 13 dBm
70 MHz SAW Filter
2 MHz Bandwidth
Part Number SF0070BA03049S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0070BA03049S Rev B 15-Feb-2010
ECN 36650 Page 2 of 3
SPECIFICATION
Parameter 2 Min. Typ. Max. Units.
Center Frequency ( Fc) 1 69.92 70.0 70.08 MHz
Insertion Loss 7.9 8.3 dB
1 dB Bandwidth 1.6 1.77 MHz
3 dB Bandwidth 2.0 2.24 MHz
40 dB Bandwidth 3.75 3.9 MHz
Passband Ripple (69.2 to 70.8 MHz) 0.7 1.0 dB p-p
Phase Ripple (69.2 to 70.8 MHz) 4.4 6 deg p-p
Group Delay Ripple (69.2 to 70.8 MHz) 280 340 ns p-p
Absolute Delay 1.80 us
Ultimate Rejection 40 43 dB
Temperature Coefficient of Frequency -23 ppm/ºC
Substrate Material 112 LiTaO3
Source and Load Impedance 50 Ω
Ambient Temperature 25 ºC
Notes: 1. Average of the lower and upper 3 dB band edge frequencies.
2. All dB levels are referenced to the insertion loss.
3. Specifications are guaranteed at 25ºC only.
MATCHING CIRCUIT
Typical component values:
(Minimum inductor Q = 40)
Notes:
1. Recommend use of 2% tolerance matching components.
2. Component values may change depending on board layout.
Ls1 = 220 nH Ls2 = 180 nH
Lp1 = 91 nH Lp2 = 68 nH
10 5
1 6
Input
50 Ω
Single ended
Output
50 Ω
Single ended
70 MHz SAW Filter
2 MHz Bandwidth
Part Number SF0070BA03049S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0070BA03049S Rev B 15-Feb-2010
ECN 36650 Page 3 of 3
PACKAGE OUTLINE
ISO 9001
Registered
Units: mm
Tolerances are typically ±0.15 mm
except for the overall length and
width, which are nominal.
Pin Configuration:
Input: 10
Input Return: 1
Output: 5
Output Return: 6
Ground: 2,3,4,7,8,9
All specifications are believed to be accurate and reliable. However, Spectrum Microwave reserves the right to make changes without notice.
© 2010 All rights reserved.
SUGGESTED FOOTPRINT
Package Material:
Body: Al2O3 ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 1 µm min,
over a 1.3-8.9 µm Ni plating
