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| SAW Components Data Sheet X 7257 M SAW Components Bandpass Filter Data Sheet X 7257 M 36,125 MHz Plastic package SIP5K Features s TV IF filter s Switchable between two bandwidths Terminals s Tinned CuFe alloy Dimensions in mm, approx. weight 1,0 g Pin configuration 1 2 3 4 5 Input Switching input Chip carrier - ground Output Output 1 4 2 5 3 Type X 7257 M Ordering code 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 -40/+85 5 10 C C V V between any terminals between any terminals 2 Jan 12, 2005 SAW Components Bandpass Filter Data Sheet Characteristics of channel 1 (switching input pin 2 connected to ground) Reference temperature: Terminating source impedance: Terminating load impedance: X 7257 M 36,125 MHz TA = 25 C ZS = 50 ZL = 2 k || 3 pF min. typ. 21,6 max. 23,1 dB Insertion attenuation Reference level for the following data Pass bandwidth rel 3 dB rel 30 dB Relative attenuation 36,125 MHz 20,1 B3dB B30dB rel 32,32 33,93 32,13 40,13 25,00 ... 30,90 42,00 ... 45,00 MHz MHz MHz MHz MHz MHz -- -- 8,0 9,5 -- -- MHz MHz Lower sidelobe Upper sidelobe - 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 s ... 6,0 s after main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) Feedthrough signal suppression 1,3 s ... 1,2 s before main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) Group delay ripple (p-p) 32,32 ... 39,93 MHz Impedance at 36,125 MHz Input: ZIN = RIN || CIN Output: ZOUT = ROUT || COUT Temperature coefficient of frequency 40,0 49,0 -- dB -- 50,0 -- dB -- -- -- 60 1,6 ||16,0 2,4 || 4,3 -72 -- -- -- -- ns k || pF k || pF ppm/K TCf -- 3 Jan 12, 2005 SAW Components Bandpass Filter Data Sheet Characteristics of channel 2 (switching input pin 2 connected to pin 1) Reference temperature: Terminating source impedance: Terminating load impedance: X 7257 M 36,125 MHz TA = 25 C ZS = 50 ZL = 2 k || 3 pF min. typ. 22,0 max. 23,5 dB Insertion attenuation Reference level for the following data Pass bandwidth rel 3 dB rel 30 dB Relative attenuation 36,125 MHz 20,5 B3dB B30dB rel 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 -- -- 6,0 7,7 -- -- MHz MHz Lower sidelobe Upper sidelobe - 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 s ... 6,0 s after main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) Feedthrough signal suppression 1,3 s ... 1,2 s before main pulse (test pulse 250 ns, carrier frequency 36,125 MHz) Group delay ripple (p-p) 33,59 ... 38,65 MHz Impedance at 36,125 MHz Input: ZIN = RIN || CIN Output: ZOUT = ROUT || COUT Temperature coefficient of frequency 40,0 50,0 -- dB -- 50,0 -- dB -- -- -- 50 1,6 ||17,0 2,4 || 4,3 -72 -- -- -- -- ns k || pF k || pF ppm/K TCf -- 4 Jan 12, 2005 SAW Components Bandpass Filter Data Sheet Frequency response in channel 1 X 7257 M 36,125 MHz 5 Jan 12, 2005 SAW Components Bandpass Filter Data Sheet Frequency response of channel 1 X 7257 M 36,125 MHz Time domain response of channel 1 6 Jan 12, 2005 SAW Components Bandpass Filter Data Sheet Frequency response in channel 2 X 7257 M 36,125 MHz 7 Jan 12, 2005 SAW Components Bandpass Filter Data Sheet Frequency response of channel 2 X 7257 M 36,125 MHz Time domain response of channel 2 8 Jan 12, 2005 SAW Components Bandpass Filter Data Sheet X 7257 M 36,125 MHz Published by EPCOS AG Surface Acoustic Wave Components Division, SAW CE MM PD P.O. Box 80 17 09, D-81617 Munchen (c) 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 |
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