KT0803K
Monolithic Digital Stereo FM Transmitter
Radio-Station-on-a-Chip™
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 I
2C 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
Rev. 1.1
Information furnished by KT Micro is believed to be accurate
and reliable. However, no responsibility is assumed by KT
Micro for its use, nor for any infringements of patents or
other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any
patent or patent rights of KT Micro, Inc..
Figure 1: KT0803K System Diagram
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.
KT Micro Inc., 22391 Gilberto, Suite D
Rancho Santa Margarita, CA 92688
Tel: 949.713.4000
http://www.ktmicro.com
Fax: 949.713.4004
Copyright
©2009, KT Micro, Inc..
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