70 MHz SAW Filter 2.5 MHz Bandwidth Part Number: SF0070BA03027T DESCRIPTION • • • 70 MHz SAW bandpass filter with 2.5 MHz bandwidth for Wireless Data applications. 27.2 x 12.7 mm DIP. RoHS compliant. TYPICAL PERFORMANCE Horizontal: Vertical from top: S11 (64.99 to 74.99 MHz) Frequency : Relative Magnitude : Relative magnitude : Phase Linearity : 1 10 1 5 MHz/div dB/div dB/div deg/div S22 (64.99 to 74.99 MHz) Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0070BA03027T Rev A 9-Feb-2010 ECN 36650 Page 1 of 3 70 MHz SAW Filter 2.5 MHz Bandwidth Part Number: SF0070BA03027T SPECIFICATION Parameter Center Frequency ( Fc) 1 Minimum Insertion Loss 2 Lower 1.5 dB Band Edge Upper 1.5 dB Band Edge Lower 14 dB Band Edge Upper 14 dB Band Edge Lower 25 dB Band Edge Upper 25 dB Band Edge Passband Ripple (Fc +/- 0.615 MHz) Phase Linearity (Fc +/- 0.615 MHz) Input Return Loss @ Fc Output return Loss @ Fc Rejection (15 MHz to 61 MHz) 3 Rejection (61 MHz to 68 MHz) 3 Rejection (72 MHz to 79 MHz) 3 Rejection (79 MHz to 140 MHz) 3 Source and Load Impedance Notes: Min 70.62 69.21 69.09 10 10 40 30 30 40 Typ 69.99 17 69.33 70.65 69.25 70.73 69.18 70.80 0.5 4.5 16 16 60 38 38 50 50 Max Units MHz dB MHz MHz MHz MHz MHz MHz dB p-p deg p-p dB dB dB dB dB dB Ω 20 69.36 70.77 70.89 1.0 8 1. Average of the lower and upper 3 dB band edge frequencies. 2. All dB values are referenced to the insertion loss. 3. Dependent on PC board layout. MAXIMUM RATINGS Parameter Storage Temperature Range Operating Temperature Range Input Power Level Min Max -40 -10 85 70 10 Units ˚C ˚C dBm MATCHING CIRCUIT Input 50 Ω Single-ended Typical component values: Ls1 = 220 Cp1 = 120 Rp1 = 2.4 Output 50 Ω Single-ended nH pF KΩ Ls2 = Lp2 = Rp2 = 120 47 3 nH nH Ls3 = 56 nH KΩ Notes: 1. Recommend use of +/- 2% tolerance components. Minimum Q=40. 2. Component values are for reference only and may change depending on board layout. Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0070BA03027T Rev A 9-Feb-2010 ECN 36650 Page 2 of 3 70 MHz SAW Filter 2.5 MHz Bandwidth Part Number: SF0070BA03027T PACKAGE OUTLINE SUGGESTED FOOTPRINT Index Mark Units: mm Tolerances are ±0.15 mm except for the overall length, width and pad dimensions, which are nominal values. Package Material: Body: Al2O3 ceramic Lid: Kovar, Ni plated Terminations: Au plating 1 µm min, over a 1.3-8.9 µm Ni plating Pad Configuration: Input: 10 Input return: 1 Output: 5 Output return: 6 Ground: all other pads ISO 9001 Registered All specifications are believed to be accurate and reliable. However, Spectrum Microwave reserves the right to make changes without notice. © 2010 All rights reserved. Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0070BA03027T Rev A 9-Feb-2010 ECN 36650 Page 3 of 3