SAW Components Data Sheet X 7257 M SAW Components X 7257 M Bandpass Filter 36,125 MHz Data Sheet Plastic package SIP5K Features ■ TV IF filter ■ Switchable between two bandwidths Terminals ■ Tinned CuFe alloy Dimensions in mm, approx. weight 1,0 g Pin configuration 1 2 3 4 5 1 Input Switching input Chip carrier - ground Output Output 4 2 5 3 Type Ordering code X 7257 M Marking and package according to Packing according to C61157-A1-A15 F61074-V8067-Z000 Maximum ratings Operable temperature range Storage temperature range DC voltage AC voltage TA Tstg VDC Vpp –25/+65 ˚C –40/+85 5 10 ˚C V V 2 between any terminals between any terminals Jan 12, 2005 SAW Components X 7257 M Bandpass Filter 36,125 MHz Data Sheet Characteristics of channel 1 (switching input pin 2 connected to ground) 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 typ. max. α 36,125 MHz 20,1 Pass bandwidth αrel ≤3 dB αrel ≤30 dB B3dB B30dB Relative attenuation αrel 21,6 23,1 dB — — MHz MHz — — 8,0 9,5 – 0,2 – 0,1 — — 34,0 33,0 1,0 1,1 2,8 3,2 42,0 39,0 2,2 2,3 — — — — dB dB dB dB dB dB Reflected wave signal suppression 1,4 µs ... 6,0 µs after main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) 40,0 49,0 — dB Feedthrough signal suppression 1,3 µs ... 1,2 µs before main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) — 50,0 — dB — 60 — ns — 1,6 ||16,0 2,4 || 4,3 — kΩ || pF — kΩ || pF — ppm/K Lower sidelobe Upper sidelobe 32,32 33,93 32,13 40,13 25,00 ... 30,90 42,00 ... 45,00 MHz MHz MHz MHz MHz MHz ∆τ Group delay ripple (p-p) 32,32 ... 39,93 MHz Impedance at 36,125 MHz Input: ZIN = RIN || CIN Output: ZOUT = ROUT || COUT — TCf Temperature coefficient of frequency 3 — Jan 12, 2005 –72 SAW Components X 7257 M Bandpass Filter 36,125 MHz Data Sheet Characteristics of channel 2 (switching input pin 2 connected to pin 1) 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 typ. max. α 36,125 MHz 20,5 Pass bandwidth αrel ≤3 dB αrel ≤30 dB B3dB B30dB Relative attenuation αrel 22,0 23,5 dB — — MHz MHz — — 6,0 7,7 – 1,2 – 1,2 — — 34,0 27,0 33,0 0,0 0,0 2,7 2,7 40,0 33,0 39,0 1,2 1,2 — — — — — dB dB dB dB dB dB dB Reflected wave signal suppression 1,4 µs ... 6,0 µs after main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) 40,0 50,0 — dB Feedthrough signal suppression 1,3 µs ... 1,2 µs before main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) — 50,0 — dB — 50 — ns — 1,6 ||17,0 2,4 || 4,3 — kΩ || pF — kΩ || pF — ppm/K Lower sidelobe Upper sidelobe 33,59 38,65 33,12 39,12 25,00 ... 32,00 40,40 ... 42,50 42,50 ... 45,00 MHz MHz MHz MHz MHz MHz MHz ∆τ Group delay ripple (p-p) 33,59 ... 38,65 MHz Impedance at 36,125 MHz Input: ZIN = RIN || CIN Output: ZOUT = ROUT || COUT — TCf Temperature coefficient of frequency 4 — Jan 12, 2005 –72 SAW Components X 7257 M Bandpass Filter 36,125 MHz Data Sheet Frequency response in channel 1 5 Jan 12, 2005 SAW Components X 7257 M Bandpass Filter 36,125 MHz Data Sheet Frequency response of channel 1 Time domain response of channel 1 6 Jan 12, 2005 SAW Components X 7257 M Bandpass Filter 36,125 MHz Data Sheet Frequency response in channel 2 7 Jan 12, 2005 SAW Components X 7257 M Bandpass Filter 36,125 MHz Data Sheet Frequency response of channel 2 Time domain response of channel 2 8 Jan 12, 2005 SAW Components X 7257 M Bandpass Filter 36,125 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 2005. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed. This brochure replaces the previous edition. 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. 9 Jan 12, 2005