AM/FM Receiver. KT0922 Datasheet

KT0922 Receiver. Datasheet pdf. Equivalent


Part KT0922
Description Monolithic Dial-tuned AM/FM Receiver
Feature Monolithic Dial-tuned AM/FM Receiver Radio-on-a-Chip™ KT0922 Digital Signal Processor  Features .
Manufacture KTMicro
Datasheet
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KT0922
Monolithic Dial-tuned AM/FM Receiver
Radio-on-a-Chip™
KT0922
Features
Single-chip AM/FM radio solution
Built-in MCU
Support analog mechanical tuning
Worldwide FM/AM band support
Maximum three FM bands with configurable
aitendofrequency range within 32MHz-110MHz
Configurable AM frequency range within 500KHz -
1710KHz
High Sensitivity
1.6uVEMF for FM
16uVEMF for AM
High Fidelity
SNR (FM/AM): 60dB/55dB
THD: 0.3%
Low Supply Current
25mA (operating)
<15uA (standby)
Integrated stereo indicator
Programmable sensitivity and hysteresis threshold
Integrated tuning indicator
Programmable sensitivity and hysteresis threshold
Low supply voltage
2.2V to 3.6V, can be supplied with 2 AAA batteries
Integrated low power crystal oscillator
Support 32.768KHz and 38KHz crystal
Arbitrary reference clock supported
From 30KHz to 40MHz with 1Hz step
One audio line-in channel
Small form factor SSOP20L package
RoHS Compliant
Applications
Desktop and portable radio, boom box, clock radio, MP3
speaker, campus radio and other applications with
mechanical tuning.
KT0922 System Diagram
Description
The KT0922 is KT Micro’s 2nd generation of proprietary
fully integrated AM/FM receiver chip supporting
mechanical tuning without MCU. The new features include
improved tuning feel, new ST and Tuning light signal,
improved EMI/EMC, improved FM stereo separation and
one audio line-in channel.
Thanks to its advanced architecture, KT0922 offers an
excellent user listening experience with high sensitivity,
high signal-to-noise ratio, low distortion and low sensitivity
to interference.
KT0922 provides direct and simple interface to support
mechanical tuning. A pre-programmed low cost EEPROM
can be used to configure the radio settings to differentiate
product designs and accommodate standards in various
regions. No external MCU is required.
Thanks to its high integration level and efficient user
interface design, KT0922 lowers the system cost, simplifies
design and improves product reliability and
manufacturability. KT0922 can operate with two AAA
batteries, making it ideal for low-power portable radio.
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 Beijing KT Micro, Ltd.
Beijing KT Micro, Ltd.
BeiWu New Technology Park, Building #4, 23 BeiWuCun
Road, Haidian District, Beijing, China.
Tel: +86-10-88891955 http://www.ktmicro.com.cn
Fax: +86-10-88891977
Copyright 2012, Beijing KT Micro, Ltd.
www.aitendo.com



KT0922
KT0922
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.  Softmute .............................................................................................................................................. 6 
3.5.  Operation Bands................................................................................................................................. 7 
3.6.  Crystal and Reference clock.............................................................................................................. 7 
3.7.  Dial Mode for Channel Control and Volume Control .................................................................... 7 
3.8.  Chip Configuration ............................................................................................................................ 9 
3.9.  Register Bank ................................................................................................................................... 11 
3.9.1.  CHIP ID (Address 0x01) .............................................................................................................. 12 
3.9.2.  MANUAL (Address 0x02)........................................................................................................... 12 
3.9.3.  SOUND (Address 0x03) .............................................................................................................. 12 
3.9.4.  SOFTMUTEA (Address 0x04) .................................................................................................... 13 
3.9.5.  SOFTMUTEB (Address 0x05)..................................................................................................... 14 
3.9.6.  SOFTMUTEC (Address 0x06)..................................................................................................... 14 
3.9.7.  DSPCFGA (Address 0x07) .......................................................................................................... 15 
3.9.8.  LOCFGA (Address 0x0C)............................................................................................................ 16 
3.9.9.  PLLCFGA (Address 0x14)........................................................................................................... 16 
3.9.10.  PLLCFGB (Address 0x15)........................................................................................................... 16 
3.9.11.  SYSCLK_CFGA (Address 0x16) ................................................................................................ 16 
3.9.12.  SYSCLK_CFGB (Address 0x17)................................................................................................. 16 
3.9.13.  SYS_CFG (Address 0x1D) .......................................................................................................... 16 
3.9.14.  AMDSPA (Address 0x23)............................................................................................................ 17 
3.9.15.  AMDSPB (Address 0x24)............................................................................................................ 17 
3.9.16.  AMDSPD (Address 0x25)............................................................................................................ 18 
3.9.17.  AMDSPD (Address 0x26)............................................................................................................ 18 
3.9.18.  GPIOCFG (Address 0x2B)........................................................................................................... 18 
3.9.19.  XTALCFG (Address 0x2C) ......................................................................................................... 19 
3.9.20.  AUCFGA (Address 0x33)............................................................................................................ 19 
3.9.21.  GUARDA (Address 0x34) ........................................................................................................... 19 
3.9.22.  GUARDB (Address 0x35) ........................................................................................................... 19 
3.9.23.  GUARDB (Address 0x36) ........................................................................................................... 19 
3.9.24.  DIALDBNC (Address 0x37)........................................................................................................ 20 
3.9.25.  BANDCFG (Address 0x38) ......................................................................................................... 20 
3.9.26.  FM1_LOW_CHAN (Address 0x39) ............................................................................................ 21 
3.9.27.  FM1_CHAN_NUM (Address 0x3A) ........................................................................................... 21 
3.9.28.  FM2_LOW_CHAN (Address 0x3B)............................................................................................ 21 
3.9.29.  FM2_CHAN_NUM (Address 0x3C) ........................................................................................... 21 
3.9.30.  FM3_LOW_CHAN (Address 0x3D) ........................................................................................... 22 
3.9.31.  FM3_CHAN_NUM (Address 0x3E)............................................................................................ 22 
3.9.32.  AM_LOW_CHAN (Address 0x3F) ............................................................................................. 22 
3.9.33.  AM_CHAN_NUM (Address 0x40) ............................................................................................. 22 
3.9.34.  FMST_CFG (Address 0x55) ........................................................................................................ 22 
3.9.35.  FMTUNINGA (Address 0x57) .................................................................................................... 23 
3.9.36.  FMTUNINGB (Address 0x58)..................................................................................................... 23 
3.9.37.  AMTUNINGA (Address 0x59).................................................................................................... 24 
3.9.38.  AMTUNINGB (Address 0x5A) ................................................................................................... 24 
3.9.39.  AMTUNINGC (Address 0x5B) ................................................................................................... 25 
3.9.40.  AMTUNINGD (Address 0x5F) ................................................................................................... 25 
4.  Typical Application Circuit ................................................................................................................ 26 
5.  Package Outline ................................................................................................................................... 27 
6.  Order Information............................................................................................................................... 28 
7.  Revision History................................................................................................................................... 28 
8.  Contact Information............................................................................................................................ 29 
Copyright 2012, Beijing KT Micro, Ltd.
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