[KTMicro]

General Description
KT0803K, our new generation of low cost Monolithic Digital FM Transmitter, is designed to process high-fidelity stereo audio signal and transmit modulated FM signal over a short range. It’s based on the architecture of award winning KT0801 and it’s also an upgrade of KT0803. The additional features added to KT0803K are increased transmission power up to 113 dBuV, auto level detection and bass boost and support of 32.768K Hz clock or crystal.
The KT0803K features dual 20-bit ΔΣ audio ADCs, a high fidelity digital stereo audio processor and a fully integrated radio frequency (RF) transmitter. An on-chip low-drop-out regulator (LDO) allows the chip to be integrated in a wide range of low-voltage battery-operated systems with power supply ranging from 1.6V to 3.6V.
The KT0803K is configured as an I2C slave and programmed through the industry standard 2-wire MCU interface.
Thanks to its high integration level, the KT0803K is mounted in a generic 16-pin SOP package. It only requires a single low-voltage supply. No external tuning is required that makes design-in effort minimum.

Features
   Hardware compatible with KT0803
   Additional features to KT0803
      Increased transmission Power
      Input signal detection
      Bass boost control
      32.768 KHz clock support
   Professional Grade Performance:
      SNR ≥ 60 dB
      Stereo Separation > 40 dB
      International compatible 70MHz ~ 108MHz
   Ultra-Low Power Consumption:
      < 17 mA operation current
      < 3 µA standby current
   Small Form factor:
      16-pin SOP
   Simple Interface:
      Single power supply
      Industry standard 2-wire I2C MCU
      interface compatible
   Advanced Digital Audio Signal Processing:
      On-chip 20-bit ΔΣ Audio ADC
      On-chip DSP core
      On-chip 24dB PGA with optional 1dB step
      Automatic calibration against process
      and temperature
   On-Chip LDO (low-drop-out) regulator:
      Accommodates 1.6V ~ 3.6V supply
   Programmable transmit level
   Programmable pre-emphasis (50/75 µs)
   Pb-free and RoHS Compliant
  
Applications
   MP3 Player
   Cellular Phone
   PDA
   Portable Personal Media player
   Laptop Computer
   Wireless Speaker