Copyright © RDA Microelectronics Inc. 2014. 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.
RDA5876A
SINGLE CHIP FOR BLUETOOTH & FM RADIO TUNER
Rev.1.3–01.2014
1 General Description
RDA5876A integrates industry-lead Bluetooth and
FM radio tuner into one chip and is optimized fo r
mobile applications. Bluetooth and FM can work
simultaneo usly and independently, with low power
consumption levels t arget 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 RDA5876A on their
product to enable a rapid time to market.
RDA5876A uses CMOS process with a compact
4*4mm 32-pin QFN package.
1.1 Bluetooth Features
z CMOS single-chip fully-integrated radio and
baseban d
z Compliant with Bluetooth 2.1 + EDR specification
z Bluetooth Piconet and S catternet 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 transmitt ing 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 4Mbp s high speed UAR T HCI support
z Support AFH
z Support 3-wire WIFI Co-existence handshake
signa ls
z Low power consumption
z Minimum external component
z Internal 32k LPO.
Figure1-1. RDA5876A Top Vie w
RDA Microelectronics, Inc. RDA5876A Datasheet V1.3
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 2 of 23
1.2 FM Features
z CMOS single-chip fully-integrated FM tuner
z Low power consumption
¾ Total current consumpt ion lower th an 20 mA a t
3.0V power supply
z Support worldwide frequency band
¾ 50 -1 15 MHz
z
Support flexible channel spacing mode
¾
100KHz, 200KHz, 50KHz and 25KHz
z
Support RDS/RBDS
z Digit al low-IF tune r
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 32.768KHz crystal oscillator
z Digital auto gain control (AGC) Digital adaptive
noise cancellation
¾ Mono/stereo switch
¾ Soft mute
¾ High cut
1.3 Applications
z MP3,MP4 and PMP
z PDA
z Cordless phone
z MCU
z Programmable de-emphasi s (50/75 Ps)
z Receive signal strength indicator (RSSI)
z Bass boost
z Volume control
z Line-level analog output voltage
z I2C control bus interface
z Directly support 32ȍ resistance loading
z Integrated LDO regulator
¾ 1.8 to 5.5 V operati on voltage
