BN0620A

BANDPASS FILTERS FOR SOUND TRANSMISSION ON TV LINKS It is often desirable for operators of video links to utilise the spare bandwidth above the video band to carry radio or telephony channels. These channels are modulated onto sub-carriers, often in pairs. The filters offered in this range are for the separation of the sub-carrier channels from the video band. They are designed on centre frequencies of 6.20, 6.80, 7.02, 7.50, 8.065, 8.59 and 10.70 MHz. The passband and stopband widths are shown below. The group delay is approximately parabolic in shape about the centre frequency. Similar filters with other centre frequencies, bandwidths or impedances may be available on request. Order Code BN0620A BN0680A BN0702A BN0750A BN0807A BN0859A BW0620A BW0680A BW0702A BW0750A BW0807A BW0859A Centre Freq. MHz Passband Width MHz Stopband 30 dB Bandwidth 40 dB 6.200 6.800 7.020 7.500 8.065 8.590 6.200 6.800 7.020 7.500 8.065 8.590 0.25 0.25 0.25 0.25 0.25 0.25 0.50 0.50 0.50 0.50 0.50 0.50 0.80 0.80 0.80 0.80 0.80 0.80 1.50 1.50 1.50 1.50 1.50 1.50 1.00 1.00 1.00 1.00 1.00 1.00 2.00 2.00 2.00 2.00 2.00 2.00 Impedance Temperature Range Aqueous Washable Package 75 ohms 0°C to 70°C No DR00009B © Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice FARA167d Page 1 of 2 Dec-99(A) PACKAGE DETAIL Faraday Technology Ltd. Croft Road Industrial Estate, Newcastle, Staffordshire ST5 0QZ. England. FARA167d Tel: Fax: Email: Web site: Page 2 of 2 + 44 (0)1782 661501 + 44 (0)1782 630101 sales@faradaytech.co.uk http://www.faradaytech.co.uk Dec-99(A)