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Si4700-B15 Datasheet Broadcast Fm Radio Tuner

Manufacturer: Silicon Laboratories

Overview: Si4700-B15 BROADCAST FM RADIO TUNER FOR PORTABLE APPLICATIONS.

General Description

„ USB FM radio „ PDAs „ Notebook PCs „ Car audio/RDS „ Media players „ Consumer electronics The Si4700/01 integrates the complete tuner function from antenna input to stereo audio output for FM broadcast radio reception.

Functional Block Diagram Ordering Information: See page 34.

Pin Assignments (Top View) Si4700/01-GM GND NC NC GPIO1 GPIO2 GPIO3 24 23 22 21 20 19 GND 1 18 VA FMIP 2 17 GND RFGND 3 FMIN 4 GND PAD 16 LOUT 15 ROUT GND 5 14 GND GND 6 13 VD 7 8 9 10 11 12 RST SEN SCLK SDIO RCLK VIO Headphone Cable FMIP FMIN LNA Si4700/01 I ADC DSP DAC LOUT PGA FILTER DEMOD Q ADC MPX AUDIO DAC ROUT 32.768 kHz RCLK AGC TUNE 2.7 - 5.5 V VA VD REG 0 / 90 AFC LOW-IF GPIO RDS (Si4701) RSSI CONTROL INTERFACE GPIO VIO RST SDIO SCLK SEN CONTROLLER AMPLIFIER Patents pending Notes: 1.

Key Features

  • This data sheet applies to Si4700 Silicon Revision B, Firmware 15 and greater.
  • Worldwide FM band support (76.
  • 108 MHz).
  • Digital low-IF receiver.
  • Frequency synthesizer with integrated VCO.
  • Seek tuning.
  • Automatic frequency control (AFC).
  • Automatic gain control (AGC).
  • Excellent overload immunity.
  • Signal strength measurement.
  • Programmable de-emphasis (50/75 µs).
  • Adaptive noise suppression.

Si4700-B15 Distributor

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