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PDF RDA5800 Data sheet ( Hoja de datos )
| Número de pieza | RDA5800 | |
| Descripción | Single Chip Broadcast FM Radio Tuner | |
| Fabricantes | RDA | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RDA5800 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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KAMHONG KAMHONG ELECTRONICS(HK) LIMITED
Http://www.kamhong.com.cn
RDA5800
SINGLE-CHIP BROADCAST FM RADIO TUNER
Rev.2.1–Mar.2007
1 General Description
The RDA5800 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 4X4mm and is completely
adjustment-free. All these make it very suitable for
portable devices.
The RDA5800 has a powerful low-IF digital audio
processor, this make it have optimum sound
quality with varying reception conditions.
The RDA5800 can be tuned to the worldwide
frequency band.
1.1 Features
Figure 1-1. RDA5800 Top View
z CMOS single-chip fully-integrated FM tuner
z Low power consumption
¾ Total current consumption lower than 16mA 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 Digital auto gain control (AGC)
z Digital adaptive noise cancellation
¾ Mono/stereo switch
¾ Soft mute
¾ High cut
z Programmable de-emphasis (50/75 μs)
z Receive signal strength indicator (RSSI)
z Bass boost
z Analog and digital volume control
z I2S digital output interface
z Line-level analog output voltage
z 32.768 KHz reference clock
z 2-wire and 3-wire serial control bus interface
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
1.2 Applications
z Cellular handsets
z MP3, MP4 players
z Portable radios
z PDAs, Notebook PCs
Copyright © RDA Microelectronics Inc. 2006. 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.
wwfowr.DwartiateShteraetn4sUf.ecormand 0x0Ah for read transfer), and
an internal incremental address counter. If register
address meets the end of register file, 0x3Ah,
register address will wrap back to 0x00h. For write
transfer, MCU programs registers from register
0x02h high byte, then register 0x02h low byte,
then register 0x03h high byte, till the last register.
RDA5800 always gives out ACK after every byte,
and MCU gives out STOP condition when register
programming is finished. For read transfer, after
command byte from MCU, RDA5800 sends out
register 0x0Ah high byte, then register 0x0Ah low
byte, then register 0x0Bh 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 RDA5800 will
return the bus to MCU, and MCU will give out
STOP condition.
Details refer to RDA5800 Programming Guide.
3.6 I2S Audio Data Interface
The RDA5800 supports I2S (Inter_IC Sound Bus)
RDA5800 FM Tuner V2.1
audio interface. The interface is fully compliant
with I2S bus specification. When setting I2SEN bit
high, RDA5800 will output SCK, WS, SD signals
from GPIO3, GPIO1, GPIO2 as I2S master and
transmitter, the sample rate is 42Kbps.
3.7 GPIO Outputs
The RDA5800 has three GPIOs. 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.
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 18
5 Page 
RDA Microelectronics, Inc.
wwwR.EDGataShBeeITt4SU.com
NAME
3:2 GPIO2[1:0]
1:0 GPIO1[1:0]
05H 15 INTMODE
13:8 SEEKTH[5:0]
7:4 VOLUME_DSP[3:0]
3:0 VOLUME_DAC[3:0]
0AH 14 STC
13 SF
8 ST
7:0 READCHAN[7:0]
0BH 13:8 RSSI
10H 14:13 LNA_PORT_SEL[1:0]
RDA5800 FM Tuner V2.1
FUNCTION
DEFAULT
10 = Low
11 = High
General Purpose I/O 2.
00 = High impedance
01 = Interrupt (INT)
10 = Low
11 = High
General Purpose I/O 1.
00 = High impedance
01 = Reserved
10 = Low
11 = High
INT Mode Select.
0 = Generate 5ms interrupt;
1 = Interrupt last until write action occurs.
Seek Threshold in Logarithmic.
000000 = min RSSI; 111111 = max RSSI
DSP Volume Control.
0000=min -15db; 1111=max 0db
DAC Gain Control Bits (Volume).
0000=min; 1000=max
Volume scale is logarithmic
Seek/Tune Complete.
0 = Not complete; 1 = Complete
The seek/tune complete flag is set when the
seek or tune operation completes.
Seek Fail.
0 = Seek successful; 1 = Seek failure
The seek fail flag is set when the seek operation
fails to find a channel with an RSSI level greater
than SEEKTH[5:0].
Stereo Indicator.
0 = Mono; 1 = Stereo
Stereo indication is available on GPIO3 by
setting GPIO1[1:0] =01.
Read Channel.
BAND = 0
Frequency = Channel Spacing (kHz) x
READCHAN + 87.5 MHz
BAND = 1
Frequency = Channel Spacing (kHz) x
READCHAN + 76.0 MHz
READCHAN is updated after a tune or seek
operation.
RSSI in Logarithmic.
000000 = min; 111111 = max
LNA input port selection bit.
01 = LNAN input
10 = LNAP input
11 = dual port input
00
00
0
000100
1111
0000
0
0
1
0x00
0x00
10
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 18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet RDA5800.PDF ] | |
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