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SA1920 Datasheet(PDF) 2 Page - NXP Semiconductors |
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SA1920 Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 36 page  Philips Semiconductors Product specification SA1920 Dual-band RF front-end 2 1999 Mar 02 853–2057 20918 DESCRIPTION The SA1920 is an integrated dual-band RF front-end that operates at both cellular (AMPS, GSM and TDMA) and PCS/DCS (TDMA and GSM) frequencies, and is designed in a 13 GHz fT BiCMOS process—QUBiC1. The low-band is a combined low-noise amplifier (LNA) and mixer. The LNA has a 1.7 dB noise figure at 881 MHz with 17.5 dB of gain and an IIP3 of –5 dBm. The wide-dynamic range mixer has a 10 dB noise figure at 881 MHz with 9.5 dB of gain and an IIP3 of +5 dBm. The high-band contains a receiver front-end, doubler and a high frequency transmit mixer intended for closed loop transmitters. One advantage of the high-band architecture is an image-rejection mixer with over 30 dB of image rejection; thus, eliminating external filter cost while saving board space. The system noise figure is 4.2 dB at 1960 MHz with a power gain of 23.5 dB and an IIP3 of –12.5 dB. FEATURES • Low current consumption • Outstanding low- and high-band noise figure • Excellent gain stability versus temperature and supply • Image reject high-band mixer with over 30 dB of rejection • Increased low-band LNA gain compression during analog transmission • LO input and output buffers • Frequency doubler • On chip logic for network selection and power down • Very small outline package APPLICATIONS • 800 to 1000 MHz analog and digital receivers • 1800 to 2000 MHz digital receivers • Portable radios • Digital mobile communications equipment PIN CONFIGURATION SR01435 21 22 23 24 25 26 27 28 29 30 31 37 38 39 40 41 42 43 1 2 3 4 5 6 18 19 20 7 8 9 10 11 12 44 45 46 47 48 32 33 34 35 36 15 16 17 13 14 Tx ON V HIGH BAND IMAGE SET I HIGH BAND LO INPUT GND GND LOW BAND LO INPUT GND HIGH BAND IMAGE SET Q N/C X2 ON N/C GND MIX IN GND Tx IF A N/C CC V CC Tx IF B GND Tx A Tx B GND VCC Figure 1. Pin Configuration ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION SA1920 LQFP48 Plastic low profile quad flat package; 48 leads; body 7x7x1.4 mm SOT313-2 |
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