K7257M ETC | Alldatasheet
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Technical content
2 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Plastic package SIP5KStandard ■ B/G ■ L/L’ ■ M/N
Features
■ TV IF filter switchable from B/G,L/L’ mode to M/N mode ■ B/G,L/L’ mode with Nyquist slope and sound suppression ■ Highly reduced group delay predistortion as compared to standard B/G, half ■ M/N mode with Nyquist slope and sound sup- pression ■ Constant group delay Terminals ■ Tinned CuFe alloy Dimensions in mm, approx. weight 1,0 g Pin configuration
1 Input
2 Switching input
3 Chip carrier – ground
4, 5 Output Type Ordering code Marking and package according to Packing according to K 7257 M B39389-K7257-M100 C61157-A1-A15 F61074-V8067-Z000 Maximum ratings Operable temperature range TA –25/+65 ˚C Storage temperature rangeTstg –40/+85 ˚C DC voltage VDC 5 V between any terminals AC voltage Vpp 10 V between any terminals
3 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Characteristics in B/G, L/L’ mode (switching input pin 2 connected to ground) Reference temperature: TA = 25 ˚C Terminating source impedance: ZS = 50Ω Terminating load impedance: ZL = 2 kΩ || 3 pF min. typ. max. Insertion attenuation α Reference level for the 37,40 MHz 15,1 16,6 18,1 dB following data Relative attenuation α rel Picture carrier 38,90 MHz 5,0 6,0 7,0 dB Picture carrier 33,90 MHz — 7,9 — dB Color carrier 34,47 MHz -0,5 0,5 1,5 dB Sound carrier 33,40 MHz 28,0 43,0 — dB NICAM sound carrier 33,05 MHz — 36,0 — dB Adjacent picture carrier 30,90 MHz 45,0 60,0 — dB 31,90 MHz 47,0 60,0 — dB 32,40 MHz 45,0 60,0 — dB 40,15 MHz 39,0 52,0 — dB Adjacent sound carrier 40,40 MHz 40,0 53,0 — dB 41,40 MHz 40,0 50,0 — dB Lower sidelobe 25,00 ... 31,90 MHz 40,0 46,0 — dB Upper sidelobe 40,40 ... 45,00 MHz 36,0 43,0 — dB Reflected wave signal suppression 1,2µs ... 6,0µs after main pulse 42,0 52,0 — dB (test pulse 250 ns, carrier frequency 37,40 MHz) Feedthrough signal suppression 1,3µs ... 1,2µs before main pulse 50,0 56,0 — dB (test pulse 250 ns, carrier frequency 37,40 MHz) Group delay predistortion Δτ ns (reference frequency 38,90 MHz) 36,90 MHz — –50 — ns 34,47 MHz —5 0 — n s Impedance at 37,40 MHz Input: ZIN = R IN ||C IN — 1,2 ||18,6 — k Ω || pF Output:ZOUT = R OUT ||C OUT — 1,8 || 4,2 —k Ω || pF Temperature coefficient of frequency TC f — –72 — ppm/K
4 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Characteristics in M/N mode (switching input pin 2 connected to pin 1) Reference temperature: TA = 25 ˚C Terminating source impedance: ZS = 50Ω Terminating load impedance: ZL = 2 kΩ || 3 pF min. typ. max. Insertion attenuation α Reference level for the 37,40 MHz 14,8 16,3 17,8 dB following data Relative attenuation α rel Picture carrier 38,90 MHz 5,4 6,4 7,4 dB Color carrier 35,32 MHz 1,6 2,6 3,6 Sound carrier 34,40 MHz 28,0 39,0 — dB Adjacent picture carrier 32,90 MHz 37,0 45,0 — dB Adjacent sound carrier 40,40 MHz 40,0 48,0 — dB Lower sidelobe 25,00 ... 32,90 MHz 36,0 44,0 — dB Upper sidelobe 40,40 ... 45,00 MHz 32,0 38,0 — dB Reflected wave signal suppression 1,3µs ... 6,0µs after main pulse 42,0 52,0 — dB (test pulse 250 ns, carrier frequency 37,40 MHz) Feedthrough signal suppression 1,3µs ... 1,2µs before main pulse — 50,0 — dB (test pulse 250 ns, carrier frequency 37,40 MHz) Group delay ripple (p-p) Δτ 35,32 ... 38,90 MHz —5 0 — n s Impedance at 37,40 MHz Input: ZIN = R IN ||C IN — 1,3 ||19,5 — k Ω || pF Output:ZOUT = R OUT ||C OUT — 1,8 || 4,2 —k Ω || pF Temperature coefficient of frequency TC f — –72 — ppm/K
5 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Frequency response in B/G, L/L’ mode
6 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Frequency response in B/G, L/L’ mode Time domain response in B/G, L/L’ mode
7 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Frequency response in M/N mode
8 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Frequency response in M/N mode Time domain response in M/N mode
9 Jan 27, 2003
33,90 MHz and 38,90 MHzIF Filter for Video / Multistandard Applications Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW CE MM PD P.O. Box 80 17 09, 81617 Munich, GERMANY EPCOS AG 2003. Reproduction, publication and dissemination of this brochure and the informa- tion 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.