QN8006

General Description

The QN8006 is a high performance, low power, fully integrated single-chip stereo FM transceiver designed for cell phones, PMP/PNDs, and portable radios. It integrates both FM receiving and transmitting functions, auto-seek and clear channel scan, and antenna tuning to ease matching in real applications. Advanced digital architecture enables superior receiver sensitivity, crystal clear audio, unsurpassed spectral purity, ultra-low harmonic and spurious levels, and high immunity to TDMA burst noise.

With its small footprint, minimal external component count and multiple clock frequency support, the QN8006 is easy to integrate into a variety of small form-factor low power portable applications. An integrated voltage regulator enables direct connection to a battery and provides high PSRR for superior noise suppression. A low-power Standby mode extends battery life. ESD protection is on all pins. The QN8006 is fabricated in highly reliable CMOS technology.

Key Features

  . Worldwide FM Band Receive and Transmit

     . 76MHz to 108MHz full band tuning in 50/100/200kHz step sizes
     . 50/75µs pre-emphasis and de-emphasis

  . Ease of Integration

     . Small footprint, 4 x 4 x 0.85mm QFN24
     . Adaptive antenna tuning
     . Low cellular and GPS band spurs
     . High Immunity to TDMA (GSM/GPRS) burst noise
     . Multiple crystal frequencies supported
     . 2- and 3-wire control interfaces

  . Very Low Power Consumption

     . 9.2mA (Transmit Mode), 17mA (Receive Mode)
     . Integrated voltage regulator, direct connect to battery
     . Power saving IDLE and standby modes
     . Low shutdown leakage current

  . High Performance FM Receiver (FMR)

     . Superior sensitivity 1.4µV_EMF
     . High SNR: 66dB Stereo
     . Ultra Low THD: 0.03%
     . High interference rejection
     . Integrated adaptive noise cancellation (SNC, HCC, SM)
     . Auto channel seek

  . High Performance FM Transmitter (FMT)

     . 66dB Stereo SNR, 0.03% THD
     . Maximum 121dBuV RF output level with 42dB adjustable range
     . Integrated Clear Channel Scan

  . RDS/RBDS Transmit & Receive (not available in QN8006L)

     . Supports US and European data service, including TMC (Traffic Messaging Channel)

  . Flexible Audio Interfaces

     . Digital audio interface supports I²S and a variety of PCM data formats with 4 different data rates
     . Programmable analog audio input/output
     . Integrated audio AGC and soft clipping

  . Robust Operation

     . -25^•C to +85^•C operation
     . ESD protection on all input and output pads

Typical Applications

     . Cell Phones / PDAs / Smart Phones
     . GPS Personal Navigation Devices
     . Portable Audio & Media Players
     . Automotive and Accessories

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