The KT0913L-D4 is KT Micro’s latest generation of proprietary fully integrated AM/FM receiver chip that upgrades the performance, improve the user experience and ease integration and manufacturing efforts. The new features includes the additional audio input, independent status indicator, improved EMI/EMC.
Thanks to the patented tuning technology, the receiver maintains good signal reception even with short antennas. The chip consumes merely 25mA current and can be powered by 2 AAA batteries. Another useful feature is that the volume and channel information can be preserved in standby mode without external memories. KT0913L-D4 supports a wide range of reference clocks from 32.768KHz to 26MHz, hence can share system clocks with a varieties of MCUs further reducing the system BOM cost. KT0913L-D4
With high audio performance, fully integrated features and low BOM cost, KT0913L-D4 is ideal for various applications and products that require flexible programmability for rich features.
Worldwide full band FM/AM support
      FM: 32MHz-110MHz
      AM: 500KHz-1710KHz
Fully integrated frequency synthesizer with no external components
Support analog mechanical tuning
High Sensitivity
      1.6uVEMF for FM
      16uVEMF for AM
High Fidelity
      SNR (FM/AM): 60dB/55dB
      THD: 0.3%
Low Supply Current
      25mA (operating)
      <15uA (standby)
Advanced features
      Automatic antenna tuning
      Adjustable AM channel filters (1/2/3/4/5KHz)
      Enhanced Automatic Frequency Control (AFC) Capability (up to 200KHz)
      Flexible AM Automatic Gain Control (AGC)
      Embedded AM/FM SNR meter
      Embedded line-in driver and SPDT switch
      Fast seek/Tune
      I2C control interface for MCU
      Channel and volume info stored and recovered
Low supply voltage
       2.1V to 3.6V, can be supplied by 2 AAA batteries
Support both 32.768KHz and 38KHz crystal
True Continuous Reference Clock supported
      From 30KHz      to 40MHz with 3V voltage tolerance
Compatible with EN55020
Small form factor SSOP16 package
RoHS Compliant
Desktop and portable radio, mini/portable audio systems, clock radio, campus radio, toy and gift.