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G1961M Datasheet(PDF) 3 Page - EPCOS |
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G1961M Datasheet(HTML) 3 Page - EPCOS |
3 / 6 page 3 Dec 02, 1999 SAW Components G 1961 M 38,90 MHz IF Filter for Intercarrier Applications Data Sheet Characteristics Reference temperature: TA = 25 ˚C Terminating source impedance: ZS = 50 Ω Terminating load impedance: ZL = 2 kΩ || 3 pF min. typ. max. Insertion attenuation α Reference level for the 37,40 MHz 13,6 15,1 16,6 dB following data Relative attenuation α rel Picture carrier 38,90 MHz 5,6 6,6 7,6 dB Color carrier 34,47 MHz 2,3 3,3 4,3 dB Sound carrier 33,40 MHz 19,3 20,3 21,3 dB Adjacent picture carrier UHF 30,90 MHz 46,0 58,0 — dB Adjacent picture carrier VHF 31,90 MHz 48,0 64,0 — dB 32,40 MHz 50,0 65,0 — dB 40,15 MHz 40,0 49,0 — dB Adjacent sound carrier VHF 40,40 MHz 46,0 59,0 — dB Adjacent sound carrier UHF 41,40 MHz 42,0 53,0 — dB Lower sidelobe 25,00 ... 32,40 MHz 37,0 46,0 — dB Upper sidelobe 40,40 ... 45,00 MHz 36,0 44,0 — dB Reflected wave signal suppression 1,3 µs ... 6,0 µs after main pulse 44,0 54,0 — dB (test pulse 250 ns, carrier frequency 37,40 MHz) Feedthrough signal suppression 1,2 µs ... 1,1 µs before main pulse 50,0 56,0 — dB (test pulse 250 ns, carrier frequency 37,40 MHz) Group delay predistortion ∆τ (reference frequency 38,90 MHz) 36,90 MHz — –90 — ns 34,47 MHz — 95 — ns Impedance at 37,40 MHz Input: ZIN = RIN || CIN — 1,7 ||13,0 — k Ω || pF Output: ZOUT = ROUT || COUT — 1,4 || 4,6 —k Ω || pF Temperature coefficient of frequency TCf — –72 — ppm/K |
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