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Si4770-A20-GM Datasheet(PDF) 1 Page - Silicon Laboratories |
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Si4770-A20-GM Datasheet(HTML) 1 Page - Silicon Laboratories |
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1 / 54 page  Rev. 0.9 6/12 Copyright © 2012 by Silicon Laboratories Si4770/77-A20 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si4770/77-A20 H IGH-P ERFORMANCE C ONSUMER E LECTRONICS B ROADCAST R ADIO R ECEIVER AND HD R ADIO TUNER Features Applications Description The Si4770/77-A20 broadcast receiver and HD Radio tuner (Si4777 only) employs an advanced, proven digital low-IF architecture to bring outstanding receiver performance to high-performance consumer electronics. Worldwide FM band support (64–108 MHz) Worldwide AM band support (520–1710 kHz) AM/FM HD Radio support (Si4777 only) Comprehensive signal quality metrics: RSSI, SNR, multipath interference, frequency offset, adjacent channel RSSI, frequency deviation, and image RSSI Advanced patented RDS soft- decision decoder Advanced, patented FM channel equalizer for multipath interference Dynamic AM/FM channel bandwidth control Programmable AM/FM soft mute FM stereo-mono blend FM hi-blend control AM/FM hi-cut control AM lo-cut filter L/R analog and digital (I2S) audio outputs Digital Low-IF architecture Frequency synthesizer with fully integrated PLL-VCO Fully integrated AM/FM front-end including high performance LNA, AGC with integrated resistor and capacitor banks, and RF and IF peak detectors Integrated crystal oscillator Digital (I2S) Zero-IF AM/FM I/Q outputs (Si4777 only) 1.2 to 5 V power supplies QFN 40-pin, 6x6x0.85 mm Pb-free/RoHS compliant Audio/video receivers Consumer electronics Boom boxes Home theater systems Patents pending Ordering Information: See page 49. Pin Assignments Si4770/77-A20 NC/IQCLK 23 NC/IQFS 24 NC/IOUT 25 NC/QOUT 26 DOUT 27 DFS 28 DCLK 29 NC/BLEND 30 NC 8 FMI 7 FMO 6 RFREG 5 RFGND 4 FMXIN 3 FMXIP 2 NC 1 AMI 10 NC 9 DBYP 21 VIO2 22 GND PAD |
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