SAW Components Data Sheet K 2955 M SAW Components K 2955 M IF Filter for Intercarrier Applications 38,90 MHz Data Sheet Standard Plastic package SIP5K ■ B/G ■ D/K Features ■ TV IF filter with Nyquist slope and sound shelf ■ Broad sound shelf for sound carriers at 32,40 MHz and 33,40 MHz ■ Group delay predistortion Terminals ■ Tinned CuFe alloy Dimensions in mm, approx. weight 1,0 g Pin configuration 1 2 3 4 5 Input Input - ground Chip carrier - ground Output Output Type Ordering code K 2955 M B39389-K2955-M100 Marking and package according to C61157-A1-A15 Packing according to F61074-V8067-Z000 Maximum ratings Operable temperature range Storage temperature range DC voltage AC voltage TA Tstg VDC Vpp –25/+65 ˚C –40/+85 12 10 ˚C V V 2 between any terminals between any terminals May 08, 2001 SAW Components K 2955 M IF Filter for Intercarrier Applications 38,90 MHz Data Sheet Characteristics TA = 25 ˚C ZS = 50 Ω ZL = 2 kΩ || 3 pF Reference temperature: Terminating source impedance: Terminating load impedance: min. Insertion attenuation Reference level for the following data Relative attenuation Picture carrier Color carrier Sound carrier Adjacent picture carrier Adjacent sound carrier Lower sidelobe Upper sidelobe typ. max. α 37,40 MHz 15,7 17,2 18,7 dB 4,7 2,6 18,5 19,4 48,0 43,0 42,0 43,0 38,0 5,7 3,6 20,0 20,4 66,0 58,0 53,0 52,0 44,0 6,7 4,6 21,5 — — — — — — dB dB dB dB dB dB dB dB dB 42,0 54,0 — dB 50,0 56,0 — dB — — ns ns — kΩ || pF — kΩ || pF — ppm/K αrel 38,90 34,47 32,40 33,40 30,90 40,40 41,40 25,00 ... 30,90 40,40 ... 45,00 MHz MHz MHz MHz MHz MHz MHz MHz MHz Reflected wave signal suppression 1,2 µs ... 6,0 µs after main pulse (test pulse 250 ns, carrier frequency 37,40 MHz) Feedthrough signal suppression 1,2 µs ... 1,1 µs before main pulse (test pulse 250 ns, carrier frequency 37,40 MHz) ∆τ Group delay predistortion (reference frequency 38,90 MHz) 36,50 MHz 34,47 MHz — — Impedance at 37,40 MHz Input: ZIN = RIN || CIN Output: ZOUT = ROUT || COUT — — TCf Temperature coefficient of frequency 3 — May 08, 2001 –65 0 2,2 ||10,7 3,1 || 2,8 –72 SAW Components K 2955 M IF Filter for Intercarrier Applications 38,90 MHz Data Sheet Frequency response 4 May 08, 2001 SAW Components K 2955 M IF Filter for Intercarrier Applications 38,90 MHz Data Sheet Frequency response Time domain response 5 May 08, 2001 SAW Components K 2955 M IF Filter for Intercarrier Applications 38,90 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW CE MM PD P.O. Box 80 17 09, D-81617 München EPCOS AG 2001. All Rights Reserved. As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or the international representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our sales offices. 6 May 08, 2001