bothhand usa. e - mail: sales@bothhandusa.com http://www.bothhand.com 10 base - t low pass filter transmitter & receiver with common chokes p/n:FB2021 apply to generic ic page : 1 / 1 462 boston st - topsfield, ma 01983 - phone: 978 - 887 - 8050 - fax: 978 - 887 - 5434 a0(12/01) feature l ieee 802.3 and ieee 802.5 compatible. l designed to meet amd am79c98, at & t t7220 & ns dp83922 chip sets requirements. l integrated filter and isolation transfor mers in single 16 pin dip package. l low insertion loss characteristics. l cost effective designs. electrical specifications @ 25c turns ratio (5%) part number tx rx cut - off freq uency voltage isolation (vrms) FB2021 1ct:1ct 1ct:1ct 17 mhz 1.5mhz 1 500 continue insertion loss tx/rx(db max) attenuation tx/rx(db min) return loss tx/rx(db min) cross talk atten uation (db min) part number 1 ? 10mhz 20mhz 25mhz 30mhz 40mhz 1 - 10mhz 1 - 10 mhz FB2021 - 1.0 - 7/ - 6 - 19/ - 14 - 28/ - 20 - 32/ - 31 - 20/ - 20 - 30 s chematic mechanica l
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