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SI4770-A20 датащи(PDF) 1 Page - Silicon Laboratories |
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SI4770-A20 датащи(HTML) 1 Page - Silicon Laboratories |
1 / 3 page AM/FM Receiver and HD-R Tuner Copyright © 2012 by Silicon Laboratories 06.12.12 AMI LNA FMXIP FMI ClK Gen DSP FMO CNTRL RF PKD DOUT DFS DCLK RSTB FMXIN LOUT/ MPXOUT ROUT IF PKD RDS ADC ADC DAC DAC Si4770/77 0°/90° VIO2 RF PKD LNA RF PKD REG RFREG VIO1 INTB RL RFGND Si4770/77-A20 High-Performance Consumer Electronics Broadcast Radio Receiver and HD Radio Tuner Description The Silicon Labs Si4770/77-A20 represents the world's first high performance single-chip mixed signal CMOS receiver targeting high-end consumer electronics. The device is a true all-in-one chip, receiving RF with zero-BOM implementation, and performing all required demodulation and signal conditioning to provide digital I2S audio and / or left and right analog audio out. The Si4777 also supports AM/FM HD radio channel reception with digital (I2S) zero-IF (ZIF) I/Q outputs for interface to an HD radio processor. The Si4770/77-A20 leverages Silicon Labs' long and proven history of delivering mixed signal low-intermediate- frequency (low-IF) ICs. The low-IF digital architecture and leading mixed signal design provide superior RF performance and interference rejection in a highly integrated, single chip device. As the leader in mixed signal CMOS, Silicon Labs has now shipped over 2 billion such devices. The fully integrated analog chain receives analog broadcast bands including AM and FM. The solution offers superior on-chip filtering and signal conditioning, and incorporates automatic channel bandwidth adjustment, sub-2 msec tune time and corresponding very fast seek time, highly effective seek algorithms, and advanced audio conditioning including programmable soft mute, multi-path mitigation / cancellation, stereo-mono blend and hi-cut / lo-cut. The Si4770/77-A20 also incorporates the world's leading FM R(B)DS decoder, including all required symbol decoding, block synchronization, error detection, and error correction functions. Features - Worldwide FM band support (64–108 MHz) - Worldwide AM band support (520–1710 kHz) - Comprehensive signal quality metrics: RSSI, SNR, mul- tipath 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 (I2S) zero-IF AM/FM I/Q outputs (Si4777 only) - Digital Low-IF architecture - Frequency synthesizer with fully integrated PLL-VCO - Fully integrated AM/FM front-end including high perfor- mance LNA, AGC with integrated resistor and capacitor banks, and RF and IF peak detectors - Integrated crystal oscillator - 1.2 to 5 V power supplies - QFN 40-pin, 6x6x0.85 mm - Pb-free/RoHS compliant Applications - Audio/video receivers - Consumer electronics - Boom boxes - Home theater systems |
Аналогичный номер детали - SI4770-A20 |
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Аналогичное описание - SI4770-A20 |
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