44 MHz SAW Filter 4.93 MHz Bandwidth Part Number: SF0044BA01979T DESCRIPTION • • • 44 MHz SAW bandpass filter for VSB System M – IF applications. 35.1 x 20.6 mm DIP package. RoHS compliant. TYPICAL PERFORMANCE Horizontal: Vertical from Top: Frequency : Relative Magnitude : Relative magnitude : Group Delay Deviation : 2 10 1 50 MHz/div dB/div dB/div ns/div Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0044BA01979T Rev A 4-Feb-2010 ECN 36650 Page 1 of 3 44 MHz SAW Filter 4.93 MHz Bandwidth Part Number: SF0044BA01979T SPECIFICATION Parameter Min Typ Max Units 1 Center Frequency (Fo, nominal) 44 MHz Insertion Loss( average passband level) 27 29 dB 2 Passband Ripple 0.6 0.8 dB p-p Attenuation at 41.57 MHz 1.5 2 dB Attenuation at 46.5 MHz 0.5 2 dB Group Delay response at: 45.75 MHz ( reference) 0 ns 41.57 MHz -446 -346 -246 ns 41.75 MHz -343 -293 -243 ns 41.85 MHz -299 -264 -229 ns 42.17 MHz -205 -170 -135 ns 42.75 MHz -45 -10 25 ns 43.0 to 46.5 MHz -35 0 35 ns Rejection (20 to 40.15 MHz) 50 55 dB Rejection ( 40.15 to 41.10 MHz) 45 48 dB Rejection ( 41.10 to 41.25 MHz) 30 40 dB Rejection ( 47.0 to 47.6 MHz) 45 50 dB Rejection ( 47.6 to 60 MHz) 50 55 dB Time domain spurious ( 3.5 -13 us After main signal) 50 57 dB Delay at Fo 4.4 us Ambient Temperature (Tref) 60 ºC Source/Load Impedance 50 Ω Notes: 1. Average of lower & upper 3 dB frequencies. 2. Measured over 41.75 to 46.45 MHz. 3. Typical change of filter frequency response with temperature is ∆f = (T-Tref)*Tc*Fc, in ppm. MAXIMUM RATINGS Parameter Storage Temperature Range Temperature Coefficient of Frequency (Tc) 3 Input Power Level Min Typ Max Units -40 - 60 -94 0 85 10 ˚C ppm/˚C dBm MATCHING CIRCUIT Output 50 Ω Single-ended Input 50 Ω Single-ended GND Note: External matching components are not required. Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0044BA01979T Rev A 4-Feb-2010 ECN 36650 Page 2 of 3 44 MHz SAW Filter 4.93 MHz Bandwidth Part Number: SF0044BA01979T PACKAGE OUTLINE Units: mm Tolerances are ±0.15 mm except for the overall length and width, which are nominal values. Pin Configuration: Input: 3 Input return: 2 Output: 15 Output return: 14 Ground: All other pins 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 DSSF0044BA01979T Rev A 4-Feb-2010 ECN 36650 Page 3 of 3