KT0932M

KT0932M KTMICRO | Alldatasheet

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Monolithic Dial-tuned AM/FM Receiver Radio-on-a-Chip™ FMAGC VCO ADC ADC LO syntehsizer FMLNA FM Mixer Digital Signal Processor DAC Class AB FMINP AOUT AMAGC AM LNA AMINP VCO AM Mixer XTAL SysPLL MCU Control Interface AMINN KT0932M System Diagram  Description The KT0932 M is KT Micro ’s latest generation of proprietary fully integrated AM/FM receiver chip supporting mechanical tuning without MCU. The new features include improved tuning feel, new Tuning light signal, improved EMI/EMC, improved FM flatness of sensitivity. Thanks to its advanced architecture, KT0932 M offers an excellent user listening experience with high sensi tivity, high signal-to-noise ratio, low distortion and low sensitivity to interference. KT0932M 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, KT0932 M lowers the system cost, simplifies design and improves product relia bility and manufacturability. KT0932M can operate with two AAA batteries, making it ideal for low-power portable radio. 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  2013, Beijing KT Micro, Ltd.  Features Single-chip AM/FM radio solution Built-in MCU Support analog mechanical tuning Worldwide FM/AM band support Maximum two FM bands with configurable frequency range within 32MHz-110MHz Maximum two AM bands with configurable frequency range within 500KHz -1750KHz High Sensitivity 1.6uVEMF for FM 16uVEMF for AM High Fidelity SNR (FM/AM): 58dB/55dB(without weighting filter) THD: 0.3% Low Supply Current 28mA (operating) Integrated tuning indicator Programmable sensitivity and hysteresis threshold Low supply voltage 2.1V 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 Small form factor SSOP16L package RoHS Compliant  Applications Desktop and p ortable radio, clock radio, MP3 speaker , campus radio and other applications with mechanical tuning. 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 Beijing KT Micro, Ltd.

Copyright 2013, Beijing KT Micro, Ltd. 2 KT0932M Table of Content

Copyright 2013, Beijing KT Micro, Ltd. 3 KT0932M

Copyright 2013, Beijing KT Micro, Ltd. 4 KT0932M 1. Electrical Specification Table 1: Operation Condition Parameter Symbol Operating Condition Min Typ Max Units Power Supply AVDD Relative to AVSS 2.1 3.3 3.6 V Ambient Temperature Ta -30 25 70 ℃ Table 2: DC Characteristics Parameter Symbol Test/Operating Condition Min Typ Max Units Current Consumption FM Mode IFM - - 30 mA AM Mode IAM - 29 mA Table 3: FM Receiver Characteristics (Unless otherwise noted Ta = -30~70℃, VDD= 2.1V to 3.6V) Parameter Symbol Test/Operating Condition Min Typ Max Units FM Frequency Range Frx 32 110 MHz Sensitivity1,2 Sen (S+N)/N=26dB 1.6 2 uVemf Input referred 3rd Order Intermodulation Production3,4 IIP3 100 dBuVE MF Adjacent Channel Selectivity ±200KHz 40 51 dB Alternate Channel Selectivity ±400KHz 50 70 dB Image Rejection Radio 43 dB AM suppression 50 dB RCLK frequency Range 30 32.768 40,000 KHz RCLK frequency tolerance7 -100 100 ppm Audio Output Voltage1,2,3 32ohm load - 190 - mVRMS Audio Band Limits1, 3 ±3dB 30 15k Hz Audio S/N1,2,3 Without weighting filter 55 58 dB Audio THD1, 3,5 0.3 % De-emphasis Time Constant DE=0 75 μs DE=1 50 μs Audio Common Mode Voltage 0.85 1.35 1.6 V Audio Output Load Resistance RL Single-ended 32 Ω Seek/Tune Time 50 ms Power-up Time 200 600 ms Notes: 1. FMOD=1KHz, 75us de-emphasis 2. △F=22.5KHz 3. VEMF=1mV, Frx=32MHz~110MHz 4. AGCD=1 5. △F=75KHz 6. VOLUME<4:0>=11111 7. The supported RCLK frequency is not continuous. Please refer to application notes.

Copyright 2013, Beijing KT Micro, Ltd. 5 KT0932M Table 4: AM Receiver Characteristics (Unless otherwise noted Ta = -30~70℃, VDD= 2.1V to 3.6V) Parameter Symbol Test/Operating Condition Min Typ Max Units AM Frequency Range Frx 500 1750 KHz Sensitivity1,2 Sen (S+N)/N=26dB 15 uVEMF Audio Output Voltage1,2,3,4 32ohm load 190 mVRMS Audio S/N1,2,3,4 55 dB Audio THD1,2,4 0.3 0.6 % Antenna inductance L 360 - 620 uH Notes: 1. FMOD=1KHz 2. Modulation index is 30% 3. VEMF=1mV, Frx=500KHz~1750KHz 4. VOLUME<4:0>=11111

Copyright 2013, Beijing KT Micro, Ltd. 6 KT0932M 2. Typical performance characteristics 2.1. FM Characteristics Test condition (Ta = 27℃, VDD= 3.0V, Crystal=32.768KHz, SNR=40dB, FMOD=1KHz, 75us de-emphasis, △F=22.5KHz,Without weighting filter) Test condition (Ta = 27℃, VDD= 3.0V, Crystal=32.768KHz, FMOD=1KHz, 75us de-emphasis,△F=22.5KHz,Pin=60dBuVEMF, Without weighting filter)

Copyright 2013, Beijing KT Micro, Ltd. 7 KT0932M 2.2. AM Characteristics Test condition (Ta = 27℃, VDD= 3.0V, Crystal=32.768KHz, SNR=20dB, FMOD=1KHz,AM modulation index=30%,Without weighting filter, ferrite antenna =420uH,distance between Tx&Rx antenna=60cm ) Test condition (Ta = 27℃, VDD= 3.0V, Crystal=32.768KHz, SNR=20dB, FMOD=1KHz,AM modulation index=30%,Without weighting filter, ferrite antenna =420uH,distance between Tx&Rx antenna=60cm )

Copyright 2013, Beijing KT Micro, Ltd. 8 KT0932M 3. Pin List Table 5: Pin list Pin Num Pin Name I/O Type Description 1 AMINN Analog I/O AM RF negative input. 2 AMINP Analog I/O AM RF positive input.

3 RFINP RF Input FM RF input

4 RFGND RF Ground RF ground. 5 DVSS Digital Ground Digital ground. 6 DVDD Digital Power Digital Power supply. 7 DVSS Digital Ground Digital ground. 8 TUNING Digital Output Tuning indicator.

9 CH Analog Input Channel adjustment

10 AM_FM Digital Output AM/FM switching control. 11 SPAN Analog Input Band switching control pin. 12 AOUT Analog Output Audio output. 13 AVSS Analog Ground Analog ground. 14 XI/RCLK Analog I/O Crystal. 15 XO Analog I/O Crystal.

16 AVDD Analog Power Power supply

Figure 1: KT0932M Pin assignment (Top view) AMINP DVSS AOUT DVDD DVSS TUNING SPAN AM_FM XTALP CH AMINN AVDD KT0932M RFGND RFINP AVSS XTALN

Copyright 2013, Beijing KT Micro, Ltd. 9 KT0932M 4. Function Description 4.1. Overview KT0932M offers a true single -chip, full-band FM/AM and versatile radio solution by minimizing the external components and offering a variety of configurations. 4.2. FM Receiver The FM receiver is based on the architecture of KT Micro’s latest generation FM receiver chips in mass production. There are no external filters or frequency -tuning devices thanks to a proprietary digital low -IF architecture consisting of a fully - integrated LNA, an automatic gain control (AGC), a set of high-performance ADCs, high-quality analog and digital filters, and an on-chip low-noise self-tuning VCO. The on-chip high-fidelity Class -AB driver further eliminates the need for external audio amplifiers. 4.3. AM Receiver The AM Receiver employs a similar digital low IF architecture and shares many circuits with the FM receiver. The AM receiver supports arbitrary frequency range from 500KHz to 1750KHz. The AM channel spac ing can be set to 1 KHz, 9KHz or 10KHz to address applications in different regions. The bandwidth of the channel filter can be set to 1 KHz to 5 KHz to suit various requirements by setting register FLT_SEL <2:0>. The AM receiver in KT0932M can provide accurate and automatic antenna tuning without manual alignment within the frequency range of 500 KHz to 1750KHz. It supports ferrite loop antenna with value between 360uH and 620uH. 4.4. Operation Bands KT0932M supports wide FM band and AM bands. The FM receiver covers frequencies from 32MHz to 110MHz. The AM band is from 500KHz to 1750KHz. 4.5. Crystal and Reference clock KT0932M integrates a low frequency crystal oscillator that supports 32.768KHz or 38KHz crystals. Alternatively a CMOS level external reference clock may be used by setting the RCLK_EN register to 1 and setting FPFD<19:0> according to the frequency of the reference clock. The FPFD<19:0> is the frequency value in the unit of 1/16Hz. In order to illuminate the usage of these bits clearly some examples are given in Table 6. Table 6: Examples using different crystal or reference clock RCLK_EN FPFD<19:16> FPFD<15:0> DIVIDERP<1 0:0> DIVIDERN<1 0:0> 32768Hz crystal 0 0x08 0x0000 0x0001 0x029C 38KHz crystal 0 0x09 0x4700 0x0001 0x0240

Copyright 2013, Beijing KT Micro, Ltd. 10 KT0932M 32.768KHz reference clock 1 0x08 0x0000 0x0001 0x029C 75KHz reference clock 1 0x09 0x27C0 0x0002 0x0247

4.2336 MHz

1 0x07 0x5499 0x008D 0x02D9 12MHz reference clock 1 0x07 0xD000 0x0177 0x02AC 24MHz reference clock 1 0x07 0xD000 0x02EE 0x02AC 40MHz reference clock 1 0x07 0xD000 0x04E2 0x02AC 4.6. Dial Mode for Channel Control KT0932M supports a unique Dial Mode whose application circuit is shown in Figure The dial is implemented by a variable resistor with the center tap connected to the chip. KT0932M measures the ratio of two parts of the variable resistor and maps the result to channel frequency. The channel controller enters dial mode by setting register CH_PIN<1:0> to b’10. The illustration circuit is shown in Figure 2. If the center tap of the variable resistor is located in the white area, the tuned channel could be expressed as: lowstepguardguardtune FfNNNYX Where stepf is the channel step, set by registers FM1_SPACE<1:0> , FM2_SPACE<1: 0> , AM1_SPACE<1:0>and AM2_SPACE<1:0>. Nchan is set by the registers FM1_C HAN_NUM<11:0>, FM2_CHAN_NUM<11:0>, AM1_CHAN_NUM<10:0> and A M2_CHAN_NUM<10:0>. Flow is set by the registers FM1_LOW_CHAN<11:0>, FM 2_LOW_CHAN<11:0>, AM1_LOW_CHAN<10:0> and AM2_LOW_CHAN<10:0>. guardN is the number of guard channel in channel step to prevent mechanical limit of t he wheels. Each band’s guard number can be configured by register FM1_GUARD< 7: 0>, FM2_GUARD<7:0>, AM1_GUARD<7:0> and AM2_GUARD<7:0>, separately. When the center tap goes in the shaded guard area, the tuned channel stays at the uppe r or lower bound of band.

Copyright 2013, Beijing KT Micro, Ltd. 12 KT0932M 4.7. Chip Configuration An I2C master interface is integrated in KT0932M and can be used to initialize and operate the chip together with an external EEPROM (e.g. 24LC02). The initialization information is written into the EEPROM beforehand. When powered on, KT0932M will readout a ll the data stored in the EEPROM and write them into internal register bank. The mapping relationship of the register bit between KT0932M internal register bank and 24LC02 can be found in Table 7. The effective device address for EEPROM is from 000(A2:A0) to 110. Table 7: Register Bits Mapping Relationship between 24LC02 and KT0932M 24LC02 KT0932M address bits address bits 0x00 D7:D0 0x00 D7:D0 0x01 D7:D0 0x01 D7:D0 0x02 D7:D0 0x02 D7:D0 0x03 D7:D0 0x03 D7:D0 … … … … … … … 0xFE D7:D0 0xFE D7:D0 0xFF D7:D0 0xFF D7:D0

Copyright 2013, Beijing KT Micro, Ltd. 13 KT0932M 4.8. Register Bank 4.8.1. PLLCFG0 (Address 0x0004) Bit Name Access Default Value Functional Description 7:3 Reserved R 0000_0 2:0 DIVIDERP<10:8> RW 000 PLL divider P configuration. 4.8.2. PLLCFG1 (Address 0x0005) Bit Name Access Default Value Functional Description 7:0 DIVIDERP<7:0> RW 0x01 PLL divider P configuration. 4.8.3. PLLCFG2 (Address 0x0006) Bit Name Access Default Value Functional Description 7:3 Reserved RW 0000_0 Reserved 2:0 DIVIDERN<10:8> RW 010 PLL divider N configuration. 4.8.4. PLLCFG3 (Address 0x0007) Bit Name Access Default Value Functional Description 7:0 DIVIDERN<7:0> RW 0x9C PLL divider N configuration. 4.8.5. SYSCLK_CFG0 (Address 0x0008) Bit Name Access Default Value Functional Description 7:4 Reserved RW 0000_0 3:0 FPFD<19:16> RW 1000 Phase-detection frequency. FPFD<19:0> = External xtal clock or RCLK frequency / DIVIDERP 4.8.6. SYSCLK_CFG1 (Address 0x0009) Bit Name Access Default Value Functional Description 7:0 FPFD<15:8> RW 0x00 Phase-detection frequency. FPFD<19:0> = External xtal clock or RCLK frequency / DIVIDERP 4.8.7. SYSCLK_CFG2 (Address 0x000a) Bit Name Access Default Value Functional Description 7:0 FPFD<7:0> RW 0x00 Phase-detection frequency. FPFD<19:0> = External xtal clock or RCLK frequency / DIVIDERP 4.8.8. XTALCFG (Address 0x000d) Bit Name Access Default Value Functional Description 7:5 Reserved RW 110 4 RCLK_EN RW 0 Reference clock enable.

Copyright 2013, Beijing KT Micro, Ltd. 14 KT0932M Bit Name Access Default Value Functional Description 0 = crystal 1 = external reference clock. 3:0 Reserved RW 0011 4.8.9. RXCFG1 (Address 0x000f) Bit Name Access Default Value Functional Description 7:5 Reserved R 000 4:0 VOLUME<4:0> RW 1_1111 Volume control bits: 11111 = 0dB 11110 = -2dB/ 11101 = -4dB 00010 = -58dB 00001 = -60dB 00000 = mute 4.8.10. BANDCFG0 (Address 0x0016) Bit Name Access Default Value Functional Description

7 SPAN_MODE RW 1 SPAN control mode selection

0 = AM/FM switching controlled by AM_FM pin 1 = AM/FM switching controlled by SPAN pin，Not controlled by AM_FM pad or AM_FM register 6:0 Reserved RW 000_1010 4.8.11. BANDCFG2 (Address 0x0018) Bit Name Access Default Value Functional Description 7:6 FM2_SPACE<1:0> RW 01 FM band 2 space selection. B’00 = 200 kHz (USA, Europe) B’01 = 100KHz (Europe, Japan) B’10 = 50KHz B’11 = 50KHz 5:4 FM1_SPACE<1:0> RW 01 FM band 1 space selection. B’00 = 200 kHz (USA, Europe) B’01 = 100KHz (Europe, Japan) B’10 = 50KHz B’11 = 50KHz 3:2 AM2_SPACE<1:0> RW 10 AM band 2 space selection. B’00 = 1kHz B’01 = 9kHz B’10 = 10kHz B’11 =10kHz 1:0 AM1_SPACE<1:0> RW 01 AM band 1 space selection. B’00 = 1kHz B’01 = 9kHz B’10 = 10kHz B’11 =10kHz

Copyright 2013, Beijing KT Micro, Ltd. 15 KT0932M 4.8.12. SOUNDCFG (Address 0x0028) Bit Name Access Default Value Functional Description 7:6 Reserved R 00 5:4 BASS<1:0> RW 00 Bass boost effect mode selection 00 = Bypass 01 = 9.4 dB@70Hz 10 = 13.3dB@70Hz 11 = 18.2dB@70Hz 3:0 Reserved RW 1101 4.8.13. DSPCFG0 (Address 0x002a) Bit Name Access Default Value Functional Description

7 Reserved RW 1

6:4 FM_GAIN<2:0> RW 000 Audio gain for FM audio processor. 000 = 0dB 001 = 3.5dB 010 = 6dB 011 = 9.5dB 100 = -2.5dB 101 = -3.66dB 110 = -6dB 111 = -8.5dB

3 Reserved RW 0000

4.8.14. DSPCFG1 (Address 0x002b) Bit Name Access Default Value Functional Description 7:4 Reserved RW 000

3 DE RW 0 De-emphasis

0 =75us. Used in USA. 1=50us. Used in Europe, Australia, Japan. 2:0 Reserved RW 000 4.8.15. DSPCFG6 (Address 0x0030) Bit Name Access Default Value Functional Description

7 Reserved RW 101

4:0 FM_RSSI_BIAS<4 :0> RW 0_0000 FM RSSI offset. 10000 = -16dB 10001 = -15dB 11110 = -2dB 11111 = -1dB 00000 = 0dB 00001 = 1dB 01111 = 15dB

Copyright 2013, Beijing KT Micro, Ltd. 16 KT0932M 4.8.16. ANACFG (Address 0x004e) Bit Name Access Default Value Functional Description 7:6 Reserved RW 00 5:4 DEPOP_TC <1:0> RW 00 De-pop time constant. 00 = 250ms 01 = 500ms 10 = 750ms 11 = 1s

3 Reserved RW 0

2:0 AUDV_DCLVL<2: RW 101 Audio Output Common Voltage: 000=0.85v 001=0.91v 010= 1.05v 011= 1.15v 100= 1.20v 101=1.35v 110=1.50v 111=1.60v 4.8.17. GPIOCFG0 (Address 0x004f) Bit Name Access Default Value Functional Description 6:4 AM_FM_PIN <2:0> RW 010 AM_FM Pin function control 000 = Reserved 001 = Key controlled AM/FM selection input 010 = Switch controlled AM/FM selection input 011 = AM_FM output 1. 100 = AM_FM output 0. 3:0 Reserved R 0000 4.8.18. GPIOCFG2 (Address 0x0051) Bit Name Access Default Value Functional Description 7:6 Reserved RW B’00 5:4 SPAN_PIN <1:0> RW B’10 SPAN pin function control 00 = Reserved 01 = Reserved 10= Dial control bands selection input 11 = Reserved 3:2 Reserved RW B’00 1:0 CH_PIN <1:0> RW B’10 CH pin function control 00 = high Z 01 = Reserved 10 = Dial controlled channel increase / decrease input 11 = Reserved 4.8.19. AMDSP0 (Address 0x0062) Bit Name Access Default Value Functional Description 7:4 AM_GAIN<3:0> RW 0110 Audio gain for AM audio processor.

Copyright 2013, Beijing KT Micro, Ltd. 17 KT0932M Bit Name Access Default Value Functional Description 0000 = 6dB 0001 = 3dB 0010 = 0dB 0011 = -3dB 0100 = -6dB 0101 = -9dB 0110 = -12dB 0111 = -15dB 1000 = -18dB

3 Reserved R 0

2:0 FLT_SEL<2:0> RW 001 AM Channel Filter Bandwidth Selection: 000=1.2KHz 001=2.4KHz 010=3.6KHz 011=4.8KHz 100=6.0KHz 4.8.20. AMDSP1 (Address 0x0063) Bit Name Access Default Value Functional Description 7:5 Reserved R 000 4:0 AM_RSSI_BIAS<4 :0> RW 0_0000 AM RSSI offset. 10000 = -16dB 10001 = -15dB 11110 = -2dB 11111 = -1dB 00000 = 0dB 00001 = 1dB 01111 = 15dB 4.8.21. AMDSP7 (Address 0x0069) Bit Name Access Default Value Functional Description 7:4 Reserved RW 1000 3:0 AM_VOLUME<3: RW 1110 AM Volume Control bits: 4’b1111= 0dB 4’b1110=-0.5dB 4’b1101=-1.0dB 4’b1100= -1.5dB 4’b1011= -2.0dB 4’b1010= -2.5dB 4’b1001= -3.0dB 4’b1000= -3.5dB 4’b0111=-4.0dB 4’b0110= -4.5dB 4’b0101= -5.0dB 4’b0100= -5.5dB 4’b0011= -6.0dB 4’b0010=-6.5dB 4’b0001=-7.0dB 4’b0000= -7.5dB

Copyright 2013, Beijing KT Micro, Ltd. 18 KT0932M 4.8.22. GUARD0 (Address 0x006f) Bit Name Access Default Value Functional Description 7:4 Reserved R 0000 3:0 SPAN_GUARD<3: RW 0010 Span guard range in dial mode. 4.8.23. FM1_LOW_CHAN0 (Address 0x0090) Bit Name Access Default Value Functional Description 7:4 Reserved R 0000 3:0 FM1_LOW_CHAN <11:8> RW 0110 Low edge frequency of FM1 band with 50KHz per LSB and default is 86MHz(0x06B8). It should be a value between 32MHz (0x280) and 110MHz (0x898). 4.8.24. FM1_LOW_CHAN1 (Address 0x0091) Bit Name Access Default Value Functional Description 7:0 FM1_LOW_CHAN <7:0> RW 0xB8 Low edge frequency of FM1 band with 50KHz per LSB and default is 86MHz(0x06B8). It should be a value between 32MHz (0x280) and 110MHz (0x898). 4.8.25. FM1_CHAN_NUM0 (Address 0x0092) Bit Name Access Default Value Functional Description 7:4 Reserved R 0000 3:0 FM1_CHAN_NU M<11:8> RW 0000 Channel number of FM1 band and the channel number is FM1_CHAN_NUM<11:0> + 1. If FM1_CHAN_NUM<11:0> is set to 0, only one channel is defined. 4.8.26. FM1_CHAN_NUM1 (Address 0x0093) Bit Name Access Default Value Functional Description 7:0 FM1_CHAN_NU M<7:0> RW 0xe6 Channel number of FM1 band and the channel number is FM1_CHAN_NUM<11:0> + 1. If FM1_CHAN_NUM<11:0> is set to 0, only one channel is defined. 4.8.27. FM2_LOW_CHAN0 (Address 0x0094) Bit Name Access Default Value Functional Description 7:4 Reserved R B’0000 3:0 FM2_LOW_CHAN <11:8> RW B’0101 Low edge frequency of FM2 band with 50KHz per LSB and default is 64MHz(0x0500). It should be a value between 32MHz (0x280) and 110MHz (0x898).

Copyright 2013, Beijing KT Micro, Ltd. 19 KT0932M 4.8.28. FM2_LOW_CHAN1 (Address 0x0095) Bit Name Access Default Value Functional Description 7:0 FM2_LOW_CHAN <7:0> RW 0 Low edge frequency of FM2 band with 50KHz per LSB and default is 64MHz(0x0500). It should be a value between 32MHz (0x280) and 110MHz (0x898). 4.8.29. FM2_CHAN_NUM0 (Address 0x0096) Bit Name Access Default Value Functional Description 7:4 Reserved R B’0000 3:0 FM2_CHAN_NU M <11:8> RW B’0001 Channel number of FM2 band and the channel number is FM2_CHAN_NUM<11:0> + 1. If FM2_CHAN_NUM<11:0> is set to 0, only one channel is defined. 4.8.30. FM2_CHAN_NUM1 (Address 0x0097) Bit Name Access Default Value Functional Description 7:0 FM2_CHAN_NU M <7:0> RW 0x0e Channel number of FM2 band and the channel number is FM2_CHAN_NUM<11:0> + 1. If FM2_CHAN_NUM<11:0> is set to 0, only one channel is defined. 4.8.31. AM1_LOW_CHAN0 (Address 0x0098) Bit Name Access Default Value Functional Description 7:3 Reserved R 0 2:0 AM1_LOW_CHA N<10:8> RW 001 Low edge frequency of AM1 band with 1KHz per LSB and default is 504KHz(0x01F8). It should be a value between 500Khz (0x1F4) and 1750Khz (0x6D6) 4.8.32. AM1_LOW_CHAN1 (Address 0x0099) Bit Name Access Default Value Functional Description 7:0 AM1_LOW_CHA N<7:0> RW 0xf8 Low edge frequency of AM1 band with 1KHz per LSB and default is 504KHz(0x01F8). It should be a value between 500Khz (0x1F4) and 1750Khz (0x6D6) 4.8.33. AM1_CHAN_NUM0 (Address 0x009a) Bit Name Access Default Value Functional Description 7:3 Reserved R B’00000 2:0 AM1_CHAN_NU M<10:8> RW 000 Channel number of AM1 band and the channel number is AM1_CHAN_NUM<10:0> + 1. If

Copyright 2013, Beijing KT Micro, Ltd. 20 KT0932M Bit Name Access Default Value Functional Description AM1_CHAN_NUM<10:0> is set to 0, only one channel is defined. 4.8.34. AM1_CHAN_NUM1 (Address 0x009b) Bit Name Access Default Value Functional Description 7:0 AM1_CHAN_NU M<7:0> RW 0x86 Channel number of AM1 band and the channel number is AM1_CHAN_NUM<10:0> + 1. If AM1_CHAN_NUM<10:0> is set to 0, only one channel is defined. 4.8.35. AM2_LOW_CHAN0 (Address 0x009c) Bit Name Access Default Value Functional Description 7:3 Reserved R B’000 2:0 AM2_LOW_CHA N<10:8> RW B’001 Low edge frequency of AM2 band with 1KHz per LSB and default is 500KHz(0x01F4). It should be a value between 500Khz (0x1F4) and 1750Khz (0x6D6) 4.8.36. AM2_LOW_CHAN1 (Address 0x009d) Bit Name Access Default Value Functional Description 7:0 AM2_LOW_CHA N<7:0> RW 0xF4 Low edge frequency of AM2 band with 1KHz per LSB and default is 500KHz(0x01F4). It should be a value between 500Khz (0x1F4) and 1750Khz (0x6D6) 4.8.37. AM2_CHAN_NUM0 (Address 0x009e) Bit Name Access Default Value Functional Description 7:3 Reserved R 00000 2:0 AM2_CHAN_NU M<10:8> RW 000 Channel number of AM2 band and the channel number is AM2_CHAN_NUM<10:0> + 1. If AM2_CHAN_NUM<10:0> is set to 0, only one channel is defined. 4.8.38. AM2_CHAN_NUM1 (Address 0x009f) Bit Name Access Default Value Functional Description 7:0 AM2_CHAN_NU M<7:0> RW 0x7d Channel number of AM2 band and the channel number is AM2_CHAN_NUM<10:0> + 1. If AM2_CHAN_NUM<10:0> is set to 0, only one channel is defined. 4.8.39. GUARD2 (Address 0x00a0) Bit Name Access Default Value Functional Description

Copyright 2013, Beijing KT Micro, Ltd. 21 KT0932M Bit Name Access Default Value Functional Description 7:0 FM1_GUARD<7:0 RW 0x17 FM1 guard range in dial mode. 4.8.40. GUARD3 (Address 0x00a1) Bit Name Access Default Value Functional Description 7:0 FM2_GUARD<7:0 RW 0x1B FM2 guard range in dial mode. 4.8.41. GUARD4 (Address 0x00a2) Bit Name Access Default Value Functional Description 7:0 AM1_GUARD<7: RW 0x78 AM1 guard range in dial mode. 4.8.42. GUARD5 (Address 0x00a3) Bit Name Access Default Value Functional Description 7:0 AM2_GUARD<7: RW 0x78 AM2 guard range in dial mode.

Copyright 2013, Beijing KT Micro, Ltd. 22 KT0932M 5. Typical Application Circuit Figure 5: Typical Application Circuits for Dial Mode Components Description Value C2,C6,C7 Supply decoupling capacitor. 0.1uF C3,C5 Supply decoupling capacitor. 10uF C8 AC coupling capacitor. 125uF C1,C4 Crystal oscillator capacitor. 24pF D1 Tuning indicator light. LED D2 FM indicator light. LED D3 Stereo indicator light. LED E1 FM ferrite antenna. E2 AM ferrite antenna. 420uH FB1,FB2 Ferrite bead. 221@100MHz J1 Phone Jack R1,R2,R7 Resistor. 10Kohm R3 Resistor network for band switch. 30Kohm R4 Resistor network for band switch. 47Kohm R5 Resistor network for band switch. 82Kohm R6 Resistor network for band switch. 255Kohm RV1 Variable resistor. 10Kohm SW1 Band switch. Single-pole/Multiple-Throw switch. U2 EEPROM for chip configuration. AT24C02 U3 AM/FM receiver KT0932M Y1 Crystal. 32.768KHz

Copyright 2013, Beijing KT Micro, Ltd. 23 KT0932M 6. Package Outline SYMBOL MILLIMETER MIN NOM MAX A - - 1.75 A1 0.10 - 0.225 A2 1.30 1.40 1.50 A3 0.50 0.60 0.70 b 0.24 - 0.30 b1 0.23 0.254 0.28 c 0.20 - 0.25 c1 0.19 0.20 0.21 D 4.80 4.90 5.00 E 5.80 6.00 6.20 E1 3.80 - 4.00 e 0.635BSC h 0.25 - 0.50 L 0.50 0.65 0.80 L1 1.05BSC θ 0 - 8o

Copyright 2013, Beijing KT Micro, Ltd. 24 KT0932M 7. Order Information Part number Description Package MPQ KT0932M 3rd generation monolithic digital AM/FM receiver SSOP16L(0.635-D1.4), Pb free 2500 pcs 8. Revision History V1.0 First release.

Copyright 2013, Beijing KT Micro, Ltd. 25 KT0932M 9. Contact Information Beijing KT Micro, Ltd. BeiWu New Technology Park, Building #4, 23 BeiWuCun Road, Haidian District, Beijing, China Zip Code: 100195 Tel: +86-10-88891955 +86-10-88891947(direct) Fax: +86-10-88891977 Email: sales@ktmicro.com Beijing KT Micro, Ltd. (US Office)

999 Corporate Drive, Suite 170

Ladera Ranch, CA 92694 USA Tel: 949-713-4000 Fax: 949-713-4004 Email: sales@ktmicro.com