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SL1925 データシート(PDF) 1 Page - Mitel Networks Corporation |
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SL1925 データシート(HTML) 1 Page - Mitel Networks Corporation |
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1 / 20 page  SL1925 Satellite Zero IF QPSK Tuner IC Preliminary Information Description The SL1925 is a wideband quadrature converter operating from 950 to 2150 MHz, intended primarily for application in satellite tuners. The device contains all elements necessary, with the exception of local oscillator sustaining network, to fabricate a high performance I(n-phase) & Q(uadrature) phase splitter and downconverter optimised for systems containing RF AGC gain control. The device allows for systems containing higher power analog interferers. For most applications RF tunable filtering is not essential. The SL1925 is optimised for use with a low phase noise synthesiser, a range of which are available from Mitel Semiconductor. This will form a complete front end tuner function for digital satellite receiver systems utilising DSP derotation recovery. The device includes a very high signal handling front end with AGC, this provides for gain control, reference local oscillator with output buffer, phase splitter with I and Q mixers and baseband buffer amplifiers with external interstage filtering. Features q Single chip system for direct quadrature down conversion from L-band q High signal handling capability for minimum external component count application, requires external RF AGC of 30dB q Compatible with DSS and DVB system requirements q Excellent gain and phase match up to 30MHz baseband q High output referred linearity for low distortion and multi channel application q Fully balanced low radiation design q Integral RF AGC amplifier q Two selectable varactor tuned local oscillators with buffered output for driving external synthesiser loop q ESD protection (Normal ESD handling procedures should be observed) Ordering Information SL1925/KG/NP2S (Tubes) SL1925/KG/NP2T (Tape and Reel) Applications q Satellite receiver systems q Data communications systems DS4955 Issue - 2.0 March 1999 |
同様の部品番号 - SL1925 |
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同様の説明 - SL1925 |
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