파트넘버.co.kr KT0801 데이터시트 PDF


KT0801 반도체 회로 부품 판매점

Monolithic Digital Stereo FM Transmitter Radio Station On A Chip



KTMicro 로고
KTMicro
KT0801 데이터시트, 핀배열, 회로
www.datasheet4u.com
Monolithic Digital Stereo FM Transmitter
Radio-Station-on-a-Chip™
KT0801
ƒ Features
Professional Grade System-on-a-Chip (SoC) High-
Fidelity Stereo Audio FM Transmitter:
SNR 68 dB
Stereo Separation > 50dB
International compatible 76MHz ~ 108MHz
Minimal External Component Requirement:
Crystal optional (in lieu of direct feeding
of an external clock)
Ultra-Low Power Consumption:
< 12.6 mA operation current
< 1 µA standby current
Dual Reference Clock Setup:
Supports both 7.6MHz and 15.2MHz
Small Form factor:
24-pin 4x4x0.9 mm QFN (Pb-free and
RoHS Compliant)
Simple Interface:
Single 1.8V (in lieu of 1.6~3.6V regulator
feed)
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
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)
Applications
MP3 Players
Cellular Phones
PDAs
Portable Personal Media player
Laptop Computers
Wireless Speakers
Rev. 1.0
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.
Left In
Right In
KTAT0801 Block Diagram
PGA/ADC
PGA/ADC
Pre-Emph
Pre-Emph
Digital MPX
Xtal1
Xtal2
XTAL
KTM proprietary
Frequency Synthesizer
& FM modulator
SDA
SCL
I2C
Bandgap &
Reference
Channel
Selector
Control
Register
Calibration
RF
Power
Amp
Figure 1: KT0801 System Diagram
RF Out
ƒ General Description
The KT Micro KT0801 Monolithic Digital FM Transmitter
is designed to process high-fidelity stereo audio signal and
transmit modulated FM signal over a short range. The
modulated stereo FM signal can be intercepted and played
back using any FM radio worldwide.
The KT0801 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 KT0801 is configured as an I2C slave and programmed
through the industry standard 2-wire MCU interface.
Thanks to its high integration level, the KT0801 is mounted
in a generic 24-pin 4x4 QFN package and only requires a
single low-voltage supply and a small-form-factor crystal
(7.6MHz or 15.2MHz) or an external clock to operate.
No external tuning is required that makes design-in effort
minimum.
KT Micro Inc., 30211 Avenida De Las Banderas,
Suite 200, Rancho Santa Margarita, CA 92688
Tel: 949.766.6744
www.ktmicro.com
Fax: 949.766.6745 Copyright ©2006, KT Micro Inc.


KT0801 데이터시트, 핀배열, 회로
www.datasheet4u.com
KT0801
ƒ Operation Condition
Table 1: Operation Condition
Parameter
Symbol
1.8V Analog Supply1 VDD
Operating Condition
Relative to GND
Min Typ Max Units
1.6 1.8 2.0 V
IO/Regulator Supply IOVDD
Relative to GND
1.6 3.6 V
Operating Temp
TA
Ambient Temperature
-30 25
Note: 1. When LDO enabled, no external voltage should be applied to this 1.8V supply.
85 °C
ƒ Specifications and Features
Table 2: FM Transmitter Functional Parameters (Unless otherwise noted TA = -30~85 oC,
IOVDD=1.6~3.6 V with LDO enabled, Fin = 1 kHz)
Parameter
FM Frequency Range
Current Consumption
Standby Current
Signal to Noise Ratio
Total Harmonic Distortion
Left/Right Channel Balance
Stereo Separation (Left<->Right)
Sub Carrier Rejection Ratio
Input Swing1
PGA Range for Audio Input
PGA Gain Step for Audio Input
Required Input Common-Mode
Voltage when DC-coupled
Power Supply Rejection2
Ground Bounce Rejection2
Symbol
Ftx
IVDD
Istand
SNR
THD
BAL
SEP
SCR
Vin
Gin
Gstep
Vcm
PSRR
GSRR
Test/Operating
Condition
Pin 19
Pin 1 with PA (power
amp.) at default power
mode
Pin 1
Vin = 0.7 Vp-p, Gin = 0
Vin = 0.7 Vp-p, Gin = 0
Vin = 0.7 Vp-p, Gin = 0
Vin = 0.7 Vp-p, Gin = 0
Vin = 0.7 Vp-p, Gin = 0
Single-ended input
Pin 4, 6
IOVDD = 1.9 ~ 3.6 V
IOVDD = 1.9 ~ 3.6 V
Min Nom
76
- 10
- 0.1
- 68
- 0.1
-0.2 -
50 60
--
- 0.3
-12 0
4
0 0.8
40 -
40 -
Input Resistance (Audio Input)
Input Capacitance (Audio Input)
Audio Input Frequency Band
Transmit Level
Rin
Cin
Fin
Vout
Channel Step
Pre-emphasis Time Constant
STEP
Tpre
Crystal/External Clock
CLK
Pin 4, 6
Pin 4, 6
Pin 4, 6
Spectrum analyzer (50
)
SIG_PROC<1> = 1
SIG_PROC<0> = 0
Dual-frequency setup
2-wire I2C Clock
SCL Pin 17
High Level Input Voltage
VIH Pin 3, 9, 10, 12, 13, 16,
17, 24
Low Level Input Voltage
VIL Pin 3, 9, 10, 12, 13, 16,
17, 24
Notes:
1. Maximum is given on the condition of PGA gain = -12dB.
2. Fin = 20 ~ 15k Hz.
120
0.5
20
93
-
-
-
-
0
0.75 x
IOVDD
- 0.25
150
0.8
-
99
100
50
75
7.6 or
15.2
100
-
-
Max
108
12.6
1
-
0.2
-
-60
1.2
12
1.8
-
-
180
1.2
15k
104
-
-
-
400
IOVDD
+ 0.25
0.25 x
IOVDD
Units
MHz
mA
μA
dB
%
dB
dB
dB
VRMS
dB
dB
V
dB
dB
k
pF
Hz
dBµV
kHz
µs
µs
MHz
kHz
V
V
Copyright ©2006, KT Micro, Inc.




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