PDF RDA5807P Data sheet ( Hoja de datos )

Número de pieza	RDA5807P
Descripción	SINGLE-CHIP BROADCAST FM RADIO TUNER
Fabricantes	RDA
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No Preview Available ! RDA5807P SINGLE-CHIP BROADCAST FM RADIO TUNER Rev.1.0–Aug.2008 1 General Description The RDA5807P is a single-chip broadcast FM stereo radio tuner with fully integrated synthesizer, IF selectivity and MPX decoder. The tuner uses the CMOS process, support multi-interface and require the least external component. The package size is 4X4mm2 and is completely adjustment-free. All these make it very suitable for portable devices. The RDA5807P has a powerful low-IF digital audio processor, this make it have optimum sound quality with varying reception conditions. The RDA5807P can be tuned to the worldwide frequency band. The RDA5807P is pin-to-pin compatible to RDA5800,RDA5800C and RDA5802. Figure 1-1. RDA5807P Top View 1.1 Features z CMOS single-chip fully-integrated FM tuner z Low power consumption ¾ Total current consumption lower than 17.5mA at 3.3V power supply z Support worldwide frequency band ¾ 76 -108 MHz z Digital low-IF tuner ¾ Image-reject down-converter ¾ High performance A/D converter ¾ IF selectivity performed internally z Fully integrated digital frequency synthesizer ¾ Fully integrated on-chip RF and IF VCO ¾ Fully integrated on-chip loop filter z Autonomous search tuning z Support crystal oscillator z 32.768 KHz 12M,24M,13M,26M,19.2M,38.4MHz Reference clock z 2-wire and 3-wire serial control bus interface z Digital auto gain control (AGC) ¾ Mono/stereo switch ¾ Soft mute ¾ High cut z Signal dependent mono to stereo blend [Stereo Noise Cancelling (SNC)] z Adjustment-free stereo decoder z Autonomous search tuning function z Bass boost z Standby mode z Programmable de-emphasis (50/75 μs) z Directly support 32Ω resistance loading z Integrated LDO regulator ¾ 2.7 to 5.5 V operation voltage z 4X4mm 24 pin QFN package Copyright © RDA Microelectronics Inc. 2008. All rights are reserved. The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Free Datasheet http://www.Datasheet4U.com 1 page RDA Microelectronics, Inc. 3.4 RESET and Control Interface select The RDA5807P is RESET itself When VIO is Power up. And also support soft reset. The control interface is select by MODE Pin. The MODE Pin is low ,I2C Interface is select. The MODE Pin is set to VIO, SPI Interface is select. The RDA5807P could enter into a power-down mode to reduce power consumption. In power-down mode, analog and digital circuitry are both disabled, while maintaining register configuration and keeping control interface active. Details refer to RDA5807P Programming Guide. 3.5 Control Interface The RDA5807P supports I2C control interface. User could program the chip through the bus. The I2C interface is compliant to I2C Bus Specification 2.1. It includes two pins: SCLK and SDIO. An I2C interface transfer begins with START condition, a command byte and data bytes, each byte has a followed ACK (or NACK) bit, and ends with STOP condition. The command byte includes a 7-bit chip address and an R/W bit. The ACK (or NACK) is always sent out by receiver. When in write transfer, data bytes is written out from MCU, and when in read transfer, data bytes is read out from RDA5807P. There is no visible register address in I2C interface transfers. RDA5807P always gives out ACK after every byte, and MCU gives out STOP condition when register programming is finished. For read transfer, after RDA5807P FM Tuner V1.0 command byte from MCU, RDA5807P sends out the first register high byte, then the first register low byte, then the second register high byte, till receives NACK from MCU. MCU gives out ACK for data bytes besides last data byte. MCU gives out NACK for last data byte, and then RDA5807P will return the bus to MCU, and MCU will give out STOP condition. The RDA5807P supported two type I2C interface:RDA5807P Mode and TEA5767 Mode. The different register defined in different interface Mode. Details refer to RDA5807P Programming Guide. 3.6 GPIO Outputs The RDA5807P has three GPIOs and only used in RDA5807P Mode. The function of GPIOs could programmed with bits GPIO1[1:0], GPIO2[1:0], GPIO3[1:0] and I2SEN. If I2SEN is set to low, GPIO pins could be programmed to output low or high or high-Z, or be programmed to output interrupt and stereo indicator with bits GPIO1[1:0], GPIO2[1:0], GPIO3[1:0]. GPIO2 could be programmed to output a low interrupt (interrupt will be generated only with interrupt enable bit STCIEN is set to high) when seek/tune process completes. GPIO3 could be programmed to output stereo indicator bit ST. Constant low, high or high-Z functionality is available regardless of the state of VA and VD supplies or the ENABLE bit. SCK WS LEFTCHANNEL 1SCK SD MSB RIGHTCHANNEL 1SCK LSB MSB Figure 3-2. I2S Digital Audio Format LSB The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 4 of 20 FreeDatasheethttp://www.Datasheet4U.com 5 Page RDA Microelectronics, Inc. RDA5807P FM Tuner V1.0 8 Application Diagram 8.1 Audio Loading Resistance Larger than 32Ω & TCXO Application: C4 125uF J1 C5 125uF L3 100nH C3 24pF 1 MODE SEN SCLK SDIO RCLK VIO GPIO1 GPIO2 GPIO3 V1 C6 24nF 13 Notes: 1. J1: Common 32Ω Resistance Headphone; 2. U1: RDA5807P Chip; 3. V1: Analog and Digital Power Supply (2.7~5.5V); 4. FM Choke (L3 and C3) for Audio Common and LNA Input Common; 5. Pins NC(22, 23), Should be Leaved Floating; 6.Set MODE to select control interface(GND—I2C,VIO—SPI); 6. Place C6 Close to AVDD pin. Figure 8-1. RDA5807P FM Tuner Application Diagram (TCXO Application) 8.1.1 Bill of Materials: COMPONENT U1 J1 L3/C3 C4,C5 C6 VALUE RDA5807P 100nH/24pF 125µF 24nF DESCRIPTION Broadcast FM Radio Tuner Common 32Ω Resistance Headphone LC Chock for LNA Input Audio AC Couple Capacitors Power Supply Bypass Capacitor SUPPLIER RDA Murata Murata Murata The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 10 of 20 Free Datasheet http://www.Datasheet4U.com 11 Page

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