KT0803L

Monolithic Digital Stereo FM Transmitter Radio-Station-on-a-Chip™ KT0803L ƒ Features Hardware compatible with KT0803K and KT0803M Additional features to KT0803K and KT0803M Software standby; Automatic power down power amplifier when silence is detected; Multiple reference clock support including from 32.768KHz to 26MHz; ALC (Automatic Level Control) Higher SNR (Stereo: 66dB) Increased audio frequency response Software controlled XTAL selection Professional Grade Performance: SNR ≥ 66 dB Stereo Separation > 40 dB International compatible 70MHz ~ 108MHz Ultra-Low Power Consumption: < 17 mA operation current < 3 µA standby current Simple Interface: Single power supply 2 Standard 2-wire I C MCU interface 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 1.6V ~ 3.6V supply Programmable transmit level Programmable pre-emphasis (50/75 µs) Pb-free and RoHS Compliant SOP-16 package Figure 1: KT0803L System Diagram ƒ General Description KT0803L, 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 awardwinning KT0801 and it’s also an upgrade of KT0803K and KT0803M. The additional features added to KT0803L are standby mode through software, ALC(automatic level control), multiple reference clock, incre...