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Si4704-D60 Datasheet BROADCAST FM RADIO RECEIVER

Manufacturer: Silicon Laboratories

Overview: Si4704/05-D60 BROADCAST FM RADIO RECEIVER WITH RDS/RBDS.

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General Description

 Modules for consumer electronics  Clock radios  Mini HiFi and docking stations  Entertainment systems The Si4704/05-D60 digital CMOS FM radio receiver IC integrates the complete tuner function from antenna input to digital audio output and includes a stereo audio AUXIN ADC input for converting analog audio into standard I2S digital audio, enabling a cost efficient digital audio platform for consumer electronic applications with high TDMA noise immunity, superior radio performance, and high fidelity audio power amplification.

When enabling the analog inputs in stereo AUXIN ADC-mode, the Si4704/05-D60 supports I2S digital audio output only (no analog output).

Functional Block Diagram FM Antenna RIN LIN FMI RFGND 32.768 kHz RCLK 2.7~5.5 V (QFN) / 2.0~5.5 V (SSOP) VA + GND Si4704/05-D60 LNA AGC RDS (Si4705) DIGITAL AUDIO LOW-IF DOUT DFS GPO/DCLK 0/90 Mux ADC DAC DSP AFC Mux ADC DAC ROUT LOUT LDO CONTROL INTERFACE VD 1.62 - 3.6 V SEN SCLK SDIO RST Pin Assignments Si4704/05-D60 (QFN) NC GPO1 GPO2/[INT] GPO3/[DCLK] DFS/[LIN] NC 1 FMI 2 RFGND 3 LPI 4 RST 5 6 20 19 18 17 16 15 DOUT/[RIN] GN

Key Features

  • Worldwide FM band support.
  • FM digital tuning (64.
  • 108 MHz).
  • EN55020 compliant.
  • Excellent real-world performance.
  • No manual alignment necessary.
  • Integrated VCO.
  • Programmable reference clock.
  • Advanced FM seek tuning.
  • Adjustable soft mute control.
  • Automatic frequency control (AFC).
  • RDS/RBDS processor (Si4705-D60).
  • Automatic gain control (AGC).
  • Digital audio out.
  • Digital FM stereo decoder.
  • 2-wire and 3-w.

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