PDF RDA5876 Data sheet ( Hoja de datos )

Número de pieza	RDA5876
Descripción	SINGLE CHIP FOR BLUETOOTH & FM RADIO TUNER
Fabricantes	RDA
Logotipo
Hay una vista previa y un enlace de descarga de RDA5876 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas
No Preview Available ! RDA5876 SINGLE CHIP FOR BLUETOOTH & FM RADIO TUNER Rev.1.2–07.2011 1 General Description RDA5876 integrates industry-lead Bluetooth and FM radio tuner into one chip and is optimized for mobile applications. Bluetooth and FM can work simultaneously and independently, with low power consumption levels target to battery powered devices. For the highest integration level, the required board space has been minimized and customer cost has been reduced. Manufacturers can easily and fast integrate RDA5876 on their product to enable a rapid time to market. RDA5876 uses CMOS process with a compact 4*4mm 32-pin QFN package. 32 31 30 29 28 27 26 25 UART_RX 1 PCM_DOUT 2 PCM_DIN 3 PCM_CLK 4 PCM_SYNC 5 VIO 6 VOUT18 7 DCDC_SW 8 GND PAD RDA5876 32 Pins 24 NC 23 FM_IP 22 FM_IN 21 AGPIO1/BT_PRIORITY 20 AGPIO0/BT_ACTIVE 19 RF 18 NC 17 NC 9 10 11 12 13 14 15 16 Figure1-1. RDA5876 Top View 1.1 Bluetooth Features z CMOS single-chip fully-integrated radio and baseband z Compliant with Bluetooth 2.1 + EDR specification z Bluetooth Piconet and Scatternet support z ARM7-based microprocessor with on-chip ROM and RAM z Meet class 2 and class 3 transmitting power requirement, support class1 operation with external power amplifier z Provides +10dbm transmitting power z NZIF receiver with -90dBm sensitivity z Battery power supply directly with internal LDO z Support DCXO with internal oscillator circuit z Up-to 4Mbps high speed UART HCI support z Support AFH z Support 3-wire WIFI Co-existence handshake signals z Low power consumption z Minimum external component z Internal 32k LPO. Copyright © RDA Microelectronics Inc. 2009. 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. 1 page RDA Microelectronics, Inc. RDA5876 Datasheet V1.2 4 Bluetooth Section Features Radio ♦ Build-in TX/RX switch ♦ Fully integrated synthesizer without any external component ♦ Support DCXO or external reference clock direct input ♦ Class2 and class3 transmit output power supported and over 30dB dynamic control range ♦ Supports π/4 DQPSK and 8DPSK modulation ♦ High performance in receiver sensitivity and over 80dB dynamic range ♦ Integrated channel filter Auxiliary features ♦ On-chip regulator to support battery power supply directly ♦ Power management support low power mode ♦ Support share handset system reference clock ♦ Support 3-wire wifi cooperation handshake protocol ♦ Support external class1 PA and antenna switch Baseband ♦ Internal RAM allows fully speed data transfer, mixed voice and data, and fully piconet operation ♦ Logic for forward error correction, header error control, access code correlation, CRC, demodulation , encryption bit stream generation, whitening and transmit pulse shaping ♦ Support eSCO and AFH ♦ Support up to Bluetooth v2.1 + EDR ♦ Support A-law, μ-law and CVSD digitize audio CODEC in PCM interface Interface ♦ Provides UART HCI interface, up-to 4Mbps ♦ Provides I2C interface for host to do configuration ♦ Provides PCM audio interface ♦ Provides 3-wire and 2-wire WIFI Co-existence handshake interface Bluetooth Stack ♦ Compliant with Bluetooth 2.1 + EDR specification 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 5 of 22 5 Page RDA Microelectronics, Inc. RDA5876 Datasheet V1.2 7 FM Section Functional Description LNAP LNAN LNA + - Limiter I PGA Q PGA I ADC Q ADC Audio DSP Core digital filter MPX decoder stereo/mono audio L DAC LOUT R DAC ROUT 32.768 KHz RCLK Synthesizer 2.7-5.5 V VDD LDO VCO RDS /RBDS RSSI GPIO GPIO Interface Bus SCLK MCU SDIO VIO Figure 7-1. RDA5876 FM Tuner Block Diagram FM Receiver The PGA amplifies the mixer output IF signal and then digitized with ADCs. The receiver uses a digital low-IF architecture that avoids the difficulties associated with direct conversion while delivering lower solution cost and reduces complexity, and integrates a low noise amplifier (LNA) supporting the FM broadcast band (50 to 115MHz), a quadrature image-reject mixer, a programmable gain control (PGA), a high resolution analog-to-digital converters (ADCs), an audio DSP and a high- fidelity digital-to-analog converters (DACs). The DSP core finishes the channel selection, FM demodulation, stereo MPX decoder and output audio signal. The MPX decoder can autonomous switch from stereo to mono to limit the output noise. The DACs convert digital audio signal to analog and change the volume at same time. The DACs has low-pass feature and -3dB frequency is about 30 KHz. The LNA has differential input ports (LNAP and LNAN) and supports any input port by set according registers bits (LNA_port_sel[1:0]). It default input common mode voltage is GND. The limiter prevents overloading and limits the amount of intermodulation products created by strong adjacent channels. The quadrature mixer down converts the LNA output differential RF signal to low-IF, it also has image-reject function. Synthesizer The frequency synthesizer generates the local oscillator signal which divide to quadrature, then be used to downconvert the RF input to a constant low intermediate frequency (IF). The synthesizer reference clock is 32.768 KHz. The synthesizer frequency is defined by bits CHAN[9:0] with the range from 50MHz to 115MHz. 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 11 of 22 11 Page

Páginas	Total 22 Páginas
PDF Descargar	[ Datasheet RDA5876.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
RDA5875	SINGLE CHIP FOR BLUETOOTH	RDA
RDA5876	SINGLE CHIP FOR BLUETOOTH & FM RADIO TUNER	RDA
RDA5876P	SINGLE CHIP FOR BLUETOOTH & FM RADIO TUNER	RDA

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar