SL1914A

Preliminary Information SL1914 SL1914 Satellite Tuner Front End LNA with AGC Preliminary Information DS5137 Issue no 1.6 April 1999 Features Ordering Information q q q q q q Single chip solution for satellite tuner LNA and AGC Provides for 30 dB minimum AGC Low DSB NF at maximum gain High signal handling at minimum gain Provides differential output drive ESD protection (Normal ESD handling procedures should be observed) SL1914A/KG/MP1S SL1914A/KG/MP1T Description The SL1914 is a wideband LNA with AGC designed primarily for application in satellite tuner front ends, offering high signal handling capability with low noise figure compatible with most common tuner input requirements. The SL1914 is optimised to complement the SL1925, ZIF quadrature downconverter, integrating all the active RF circuitry within the tuner, in a highly compact, efficient solution, and offering a full 1-45 MS/s tuner capability. Applications q q q Satellite receiver systems Data communications systems Master Antennae Distribution Systems . 6 RE INPUT 2 5 OUTPUT OUTPUTB AGC 4 1 8 3 Vcca Vccb Vee Figure 1 Block Diagram 1 SL1914 Preliminary Information Vcca RFIP Vccb N/C 8 SPOT REF. Vee AGC OP OPB MP8 Figure 2 Pin Connections Quick Reference Data Characteristic Operating frequency Input DSB NF at max gain Maximum conversion gain Minimum conversion gain IPIP32T IPIP22T 950 - 2150 8 20 -10 117 127 Units MHz dB dB dB dBµV dBµV Functional Description The SL1914 is a bipolar, low...