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.
RDA5876
SINGLE CHIP FOR BLUETOOTH & FM RADIO TUNER
Rev.1.1–04.2011
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.
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 1, 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.
GND PAD
RDA5876
32 Pins
25262728
29
303132
1
2
3
4
5AGPIO0/BT_ACTIVE
XTAL
XIN
UART_RX
FM_IP
GPIO_FM1
FM_OUTR
VOUT12
FM_OUTL
HOST_WAKE
PCM_CLK
PCM_SYNC
PCM_DOUT
PCM_DIN
6
7
8
24
23
22
21
20
19
18
17
161514131211109
VOUT18
I2C_SCL
XEN_OUT
NC
RF
UART_TX
DCDC_SW NC
FM_IN
AGPIO1/BT_PRIORITY
VIO
XIN_32K
LDO_ON
VBAT
I2C_SDA
GPIO_FM3
GPIO_FM2
GPIO2/
WLAN_ACTIVE
Figure1-1. RDA5876 Top View
