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KT0806L Schematic ( PDF Datasheet ) - KTMicro

Teilenummer KT0806L
Beschreibung Monolithic Digital Stereo FM Transmitter
Hersteller KTMicro
Logo KTMicro Logo 




Gesamt 23 Seiten
KT0806L Datasheet, Funktion
Monolithic Digital Stereo FM Transmitter
Radio-Station-on-a-Chip™
KT0806L
ƒ Features
Hardware compatible with KT0806
Additional features to KT0806
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 (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
Small Form Factor:
16-pins QFN 3x3
Simple Interface:
Single power supply
Standard 2-wire I2C 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
Applications
MP3 Player, Cellular Phone, PDA, PND,
Portable Personal Media player and its accessory,
Laptop Computer, Wireless Speaker
Rev. 1.4
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: KT0806L System Diagram
ƒ General Description
KT0806L, 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 KT0806. The
additional features added to KT0806L are standby mode
through software, ALC (automatic level control), multiple
reference clock, increased SNR performance and frequency
response.
The KT0806L 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 KT0806L is configured as an I2C slave and
programmed through the industry standard 2-wire MCU
interface.
Thanks to its high integration level, the KT0806L is
mounted in a generic 16-pin QFN 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 ©2010, KT Micro, Inc..






KT0806L Datasheet, Funktion
KT0806L
Figure 6: Clock and Data Transitions
Figure 7: Start and Stop Definition
Figure 8: Acknowledge
Copyright ©2010, KT Micro, Inc.
6

6 Page









KT0806L pdf, datenblatt
KT0806L
Bits Type Default Label
7:5 RW 101
Reserved
4:3 RW 01
Reserved
2:1 RW 00
Reserved
0 RW 0
PGAMOD
Description
Reserved
Reserved
Reserved
PGA Mode Selection
0 = 4dB step
1 = 1dB step with PGA_LSB[1:0 ] used
5.10 Register 0x12 (Address: 0x12, Default: 0x80)
Bit
KT0806L
7
SLNCDIS
654
SLNCTHL[2:0]
3
2
SLNCTHH[2:0]
1
Bits Type Default Label
7 RW 1
SLNCDIS
6:4 RW 000
SLNCTHL
3:1 RW 000
SLNCTHH
0 RW 0
SW_MOD
Description
Silence Detection Disable
0 : Enable
1 : Disable
Silence Detection Low Threshold
000 : 0.25mv
001 : 0.5mv
010 : 1mv
011 : 2mv
100 : 4mv
101 : 8mv
110 : 16mv
111 : 32mv
Silence Detection High Threshold
000 : 0.5mv
001 : 1mv
010 : 2mv
011 : 4mv
100 : 8mv
101 : 16mv
110 : 32mv
111 : 64mv
Switching Channel Mode Selection.
0 = Mute when changing channel
1 = PA off when changing channel
0
SW_MOD
5.11 Register 0x13 (Address: 0x13, Default: 0x80)
Bit 7 6 5 4 3
KT0806L
RFGAIN[2]
-
-
2
PA_CTRL
1
-
0
-
Bits Type Default Label
7 RW 1
RFGAIN[2]
6:3 RW 0000 Reserved
Description
PA (Power amplifier) power (combined with Reg
0x01[7:6] and Reg 0x02[6])to set up transmission
range)
Reserved
Copyright ©2010, KT Micro, Inc.
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