68.256 mhz saw filter 2.4 mhz bandwidth part number 074949-518 idt ? ?? ? saw products ? ?? ? 324 clark street, worcester, ma 01606, usa ? ?? ? ph 1-508-852-5400 ? ?? ? fax 1-508-852-8456 www.idt.com ds074949-518 rev - 30-apr-2008 ecn 35965 page 1 of 3 description ? 68.256 mhz saw bandpass filter with 2.4 mhz bandwi dth. ? 35.05 x 20.6 mm 8-pin dip package. ? rohs compliant. typical performance s11 (63.26-73.26 mhz) s22 (63.26-73.26 mhz) horizontal: frequency 1 mhz / div vertical (from top): magnitude 10 db/div magnitude 1 db/div phase deviation 2 deg/div group delay deviation 50 ns/div
68.256 mhz saw filter 2.4 mhz bandwidth part number 074949-518 idt ? ?? ? saw products ? ?? ? 324 clark street, worcester, ma 01606, usa ? ?? ? ph 1-508-852-5400 ? ?? ? fax 1-508-852-8456 www.idt.com ds074949-518 rev - 30-apr-2008 ecn 35965 page 2 of 3 specification parameter min typ max units center frequency, f c 1 67.056 68.256 69.456 mhz insertion loss 32 33.6 36 db 1 db bandwidth 2.4 3.08 - mhz 3 db bandwidth 3.7 3.86 4.1 mhz 20 db bandwidth 5.6 5.81 6.2 mhz 35 db bandwidth 6.3 6.43 7 mhz phase linearity (fc +/- 1.85 mhz) - 2 4 deg p-p phase linearity (fc +/- 2.4 mhz) - 5 10 deg p-p lower 3 db frequency fc-2.05 - fc-1.85 mhz upper 3 db frequency fc+1.85 - fc+2.05 mhz lower 20 db frequency fc-3.1 - fc-2.8 mhz upper 20 db frequency fc+2.8 - fc+3.1 mhz lower 35 db frequency fc-3.5 - fc-3.15 mhz upper 35 db frequency fc+3.15 - fc+3.5 mhz absolute delay 2.4 2.45 2.5 us group delay ripple (fc +/- 1.85 mhz) - 30 100 ns p- p rejection (30 to fc-3.5 mhz) 2 35 42 - db rejection (fc+3.5 to 150 mhz) 2 35 42 - db input vswr (fc +/- 1.2 mhz) - 1.4 1.5 :1 output vswr (fc +/- 1.2 mhz) - 1.4 1.5 :1 source and load impedance 50 ohms ambient temperature - 25 - ?c notes: 1. reference frequency. computed as mean of the 3 db frequencies. 2. all db values are referenced to the insertion l oss value. maximum ratings parameter min max units storage temperature range -40 85 ?c operating temperature range -18 63 ?c input power level - 10 dbm matching circuit notes: ? device is internally matched. no external matchin g components are required. input 50 single ended output 50 single ended 8 4 7 5 gnd gnd
68.256 mhz saw filter 2.4 mhz bandwidth part number 074949-518 idt ? ?? ? saw products ? ?? ? 324 clark street, worcester, ma 01606, usa ? ?? ? ph 1-508-852-5400 ? ?? ? fax 1-508-852-8456 www.idt.com ds074949-518 rev - 30-apr-2008 ecn 35965 page 3 of 3 package outline all specifications are believed to be accurate and reliable. however, mnc reserves the right to make changes without notice. ? 200 8 all rights reserved. iso 9001 registered units: mm tolerances are typically 0.15 mm except where indicated. pad configuration: input: 8 input return: 7 output: 4 output return: 5 ground: all other pins
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