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KT0911 Datasheet Download - KTMicro

Номер произв KT0911
Описание Monolithic Digital AM/FM Receiver
Производители KTMicro
логотип KTMicro логотип 



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KT0911 Даташит, Описание, Даташиты
Monolithic Digital AM/FM Receiver
Radio-on-a-Chip™
KT0911
ƒ Features
Fully integrated AM/FM radio solution with simple
control interfaces and direct support for LCD display:
Integrated channel, volume, band control
Versatile tuning interfaces including dial mode,
keyboard mode and incremental encoder mode.
AM/FM LO frequency output to support SC3610
Worldwide FM/AM band support
FM: 32MHz-110MHz
AM: 500KHz-1710KHz
Fully integrated frequency synthesizer with no external
components
High Sensitivity
1.6uVEMF for FM
16uVEMF for AM
High Fidelity
SNR (FM/AM): 60dB/55dB
THD: 0.3%
Low Supply Current
22mA (operating)
<15uA (standby)
Channel and volume store in standby mode
Low supply voltage: 2.2V to 3.6V, can be supplied with 2
AAA batteries
Support 32.768KHz reference clock
Small form factor SSOP16L package
RoHS Compliant
ƒ Applications
Desktop and portable radio, campus radio, mini/portable
audio systems, clock radio, PMP docking station, car audio
system, toy and gift.
FMAGC
FMINP
FMLNA
FM Mixer
ADC
VCO
LO syntehsizer
ADC
DAC
Amp
LOUT
DAC
Amp
ROUT
AMINP
AMINN
AM LNA
AMAGC
VCO
AM Mixer
SysPLL
XTAL
MCU
Control Interface
KT0911 System Diagram
ƒ Description
The KT0911 is a fully integrated AM/FM radio chip with
patented technologies that delivers superior audio and RF
performance, supports direct and simple interface for
tuning wheel and push button, and directly interfaces with
application-specific LCD displays such as SC3610.
Thanks to its advanced system architecture, the KT0911
offers an excellent user listening experience with high
sensitivity, high signal-to-noise ratio, low distortion and
low sensitivity to interference.
KT0911 provides direct and simple interface to support
multiple tuning schemes, such as tuning wheel and push
button. It eliminates many components used in traditional
radios while maintaining the user experience with digital
enhancements.
Rev. 1.2
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.
The unique LO output enables KT0911 to work directly
with the low cost and widely used frequency and clock
display IC, SC3610 and its compatibles, thus offers highly
integrated and low cost AM/FM radio and clock solutions
with digital display.
Thanks to its high integration level, KT0911 lowers the
system cost, simplifies design, and improves product
reliability and manufacturability. KT0911 can operate with
two AAA batteries, making it an ideal for portable radios
that require LCD displays.
KT Micro Inc., 22391 Gilberto, Suite D
Rancho Santa Margarita, CA 92688
Tel: 949.713.4000 http://www.ktmicro.com.cn
Fax: 949.713.4004 Copyright ©2010, KT Micro, Inc.







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KT0911 Даташит, Описание, Даташиты
Table of Content
1. Electrical Specification............................................................................................................................ 3
2. Pin List .................................................................................................................................................... 5
3. Function Description ............................................................................................................................... 6
3.1. Overview ............................................................................................................................................. 6
3.2. FM Receiver........................................................................................................................................ 6
3.3. AM Receiver ....................................................................................................................................... 6
3.4. Operation Bands................................................................................................................................. 6
3.5. Standby ............................................................................................................................................... 7
3.6. User-Machine Interface ..................................................................................................................... 7
3.6.1. Key Mode....................................................................................................................................... 7
3.6.2. Dial Mode....................................................................................................................................... 8
3.6.3. Incremental Encoder Mode ...........................................................................................................11
3.7. Chip Configuration ...........................................................................................................................11
3.8. Register Bank ....................................................................................................................................13
3.8.1. FMSYSCFG (Address 0x02) ........................................................................................................14
3.8.2. FMCHAN (Address 0x03) ............................................................................................................14
3.8.3. AUCFGA (Address 0x04).............................................................................................................14
3.8.4. AUCFGB (Address 0x05) .............................................................................................................15
3.8.5. LOCFG (Address 0x0A) ...............................................................................................................15
3.8.6. VOLUME (Address 0x0F)............................................................................................................16
3.8.7. AMSYSCFG (Address 0x16)........................................................................................................16
3.8.8. AMCHAN (Address 0x17) ...........................................................................................................16
3.8.9. GPIOCFG (Address 0x1D) ...........................................................................................................16
3.8.10. AMDSP (Address 0x22) ...............................................................................................................17
3.8.11. AMCFGA (Address 0x33) ............................................................................................................18
3.8.12. AMCFGB (Address 0x34h) ..........................................................................................................18
3.8.13. CHANGUARDA (Address 0x38h) ...............................................................................................19
3.8.14. CHANGUARDB (Address 0x39h) ...............................................................................................19
3.8.15. VOLGUARD (Address 0x3Ah) ....................................................................................................19
4. Typical Application Circuit ....................................................................................................................21
5. Revision History.....................................................................................................................................26
6. Contact Information................................................................................................................................26
Copyright ©2010, KT Micro, Inc.
2







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KT0911 Даташит, Описание, Даташиты
1. Electrical Specification
Table 1: Operation Condition
Parameter
Symbol
Operating Condition Min Typ Max Units
Power Supply
AVDD
Relative to AVss
2.2 3.3 3.6 V
Ambient Temperature Ta
-30 25 70
Parameter
Current
Consumption
Standby Current
FM Mode
AM Mode
Table 2: DC Characteristics
Symbol
IFM
IAM
IAPD
Test/Operating
Condition
Min
-
Typ Max Units
21.3 - mA
22 mA
14.5 μA
Table 3: FM Receiver Characteristics
(Unless otherwise noted Ta = -30~70 , VDD= 2.2V to 3.6V)
Parameter
FM Frequency Range
Sensitivity1,2,3
Input referred 3rd Order
Intermodulation Production4,5
Adjacent Channel Selectivity
Symbol Test/Operating
Condition
Min
Typ Max
Frx 32 110
Sen (S+N)/N=26dB
1.6 2
IIP3 85
±200KHz
35
51
Alternate Channel Selectivity
±400KHz
50
70
Image Rejection Radio
AM suppression
RCLK frequency
RCLK frequency Range8
35
50
- 32.768 -
-100 100
Audio Output Voltage1,2,3,4
Audio Band Limits1,2,4
32ohm load
±3dB
90 100 110
30 15K
Audio Stereo Separation 1,4,6
Audio Mono S/N1,2,3,4
Audio Stereo S/N1,4,6,7
Audio THD1,2,4,6
DBLND=1
35
55 60
64
0.3
De-emphasis Time Constant
DE=0
DE=1
75
50
Audio Common Mode Voltage
Audio Output Load Resistance
Power-up Time
RL
Single-ended
0.85
32
600
Notes:
1. FMOD=1KHz, 75us de-emphasis
2. MONO=1
3. F=22.5KHz
4. VEMF=1mV, Frx=32MHz~110MHz
5. AGCD=1
6. F=75KHz
7. VOLUME<4:0>=11111
8. The supported RCLK frequency is not continuous. Please refer to application notes.
Units
MHz
uVemf
dBuVE
MF
dB
dB
dB
dB
KHz
ppm
mVRMS
Hz
dB
dB
dB
%
μs
μs
V
ms
Copyright ©2010, KT Micro, Inc.
3










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