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PDF RDA5807M Data sheet ( Hoja de datos )

Número de pieza RDA5807M
Descripción SINGLE-CHIP BROADCAST FM RADIO TUNER
Fabricantes RDA 
Logotipo RDA Logotipo



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RDA5807M Hoja de datos, Descripción, Manual
RDA5807M
SINGLE-CHIP BROADCAST FM RADIO TUNER
Rev.1.0May.2011
1 General Description
The RDA5807M series is the newest generation single-chip
broadcast FM stereo radio tuner with fully integrated
synthesizer, IF selectivity, RDS/RBDS and MPX decoder.
The tuner uses the CMOS process, support multi-interface
and require the least external component. All these make it
very suitable for portable devices.
The RDA5807M series has a powerful low-IF digital audio
processor, this make it have optimum sound quality with
varying reception conditions.
The RDA5807M series support frequency range is from
50MHz to 115MHz.
1 GND
LOUT
10
2 FMIN
ROUT
9
3 GND RDA5807M GND 8
4 SCLK
VDD
7
5 SDIO
RCLK
6
Figure1-1. RDA5807M Top View
1.1 Features
CMOS single-chip fully-integrated FM tuner
Low power consumption
Total current consumption lower than 20mA at 3.0V
power supply when under normal situation
Support worldwide frequency band
50 -115 MHz
Support flexible channel spacing mode
100KHz, 200KHz, 50KHz and 25KHz
Support RDS/RBDS
Digital low-IF tuner
Image-reject down-converter
High performance A/D converter
IF selectivity performed internally
Fully integrated digital frequency synthesizer
Fully integrated on-chip RF and IF VCO
Fully integrated on-chip loop filter
Autonomous search tuning
Support 32.768KHz crystal oscillator
Digital auto gain control (AGC)
Digital adaptive noise cancellation
Mono/stereo switch
Soft mute
High cut
Programmable de-emphasis (50/75 s)
Receive signal strength indicator (RSSI) and SNR
Bass boost
Volume control and mute
Line-level analog output voltage
32.768 KHz 12M,24M,13M,26M,19.2M,38.4MHz
Reference clock
Only support 2-wire bus interface
Directly support 32Ω resistance loading
Integrated LDO regulator
1.8 to 3.3 V operation voltage
MSOP10pins
1.2 Applications
Cellular handsets
MP3, MP4 players
Portable radios
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.
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RDA5807M pdf
RDA Microelectronics, Inc.
2.4 RESET and Control Interface select
The RDA5807M is RESET itself When VIO is
Power up. And also support soft reset by trigger
02H BIT1 from 0 to 1. The RDA5807M only
support I2C control interface bus mode.
2.5 Control Interface
The RDA5807M only supports I2C control
interface.
The I2C interface is compliant to I2C Bus
Specification 2.1. It includes two pins: SCLK and
SDIO. A 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 (0010000b) and a R/W bit.
The ACK (or NACK) is always sent out by receiver.
When in write transfer, data bytes is written out
RDA5807M FM Tuner V1.0
from MCU, and when in read transfer, data bytes
is read out from RDA5807M. There is no visible
register address in I2C interface transfers. The I2C
interface has a fixed start register address (0x02h
for write transfer and 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.
RDA5807M 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, RDA5807M 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 RDA5807M will
return the bus to MCU, and MCU will give out
STOP condition.
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 23

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RDA5807M arduino
RDA Microelectronics, Inc.
REG BITS
14:12
11:8
5:4
3:0
NAME
RSVD
SEEKTH[3:0]2
RSVD
VOLUME[3:0]
06H 15
RSVD
14:13 OPEN_MODE[1:0]
07H 15
RSVD
14:10 TH_SOFRBLEND[5:0]
9 65M_50M MODE
8 RSVD
7:2 SEEK_TH_OLD3
1 SOFTBLEND_EN
0 FREQ_MODE
0AH 15
RDSR
14 STC
13 SF
12 RDSS
11 BLK_E
RDA5807M FM Tuner V1.0
FUNCTION
DEFAULT
Reserved
000
Seek SNR threshold value
1000
Resvered
00
DAC Gain Control Bits (Volume).
0000=min; 1111=max
Volume scale is logarithmic
When 0000, output mute and
impedance is very large
reserved
output
1111
0
Open reserved register mode.
11=open behind registers writing function
others: only open behind registers reading
function
Reserved
00
0
Threshold for noise soft blend setting, unit 2dB 10000
Valid when band[1:0] = 2’b11 (0x03H_bit<3:2>) 1
1 = 65~76 MHz;
0 = 50~76 MHz.
Reserved
0
Seek threshold for old seek mode, Valid when 000000
Seek_Mode=001
If 1, Softblend enable
1
If 1, then freq setting changed.
0
Freq = 76000(or 87000) kHz + freq_direct (08H)
kHz.
RDS ready
0
0 = No RDS/RBDS group ready(default)
1 = New RDS/RBDS group ready
Seek/Tune Complete.
0
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].
RDS Synchronization
0
0
0 = RDS decoder not synchronized(default)
1 = RDS decoder synchronized
Available only in RDS Verbose mode
When RDS enable:
0
2 This value is SNR threshold for seeking, and the default value 1000 is about 32dB SNR.
3 0x20H_bit<14:12>, Seek_Mode register. Default value is 000; When = 001, will add the 5802E seek mode.
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.
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