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RDA5802NM 데이터시트 PDF




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부품번호 RDA5802NM 기능
기능 SINGLE-CHIP BROADCAST FM RADIO TUNER
제조업체 RDA
로고 RDA 로고


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RDA5802NM 데이터시트, 핀배열, 회로
RDA5802N/NS/NM
SINGLE-CHIP BROADCAST FM RADIO TUNER
Rev.2.0–Mar.2011
1 General Description
The RDA58 02N series is the newe st genera tion
single-chip br oadcast FM stereo radio tuner with fu lly
integrated s ynthesizer, IF selectivity, R DS/RBDS an d
MPX decode r. The tuner uses the CMOS process,
support multi-interface an d require the least e xternal
component. The RDA580 2N series have three type
package size s , respective are RDA580 2N (QFN 4X4
mm, 24pins), RDA5802NS (QFN 3X3 mm, 20pins) an d
RDA5802NM (QFN 2X2 mm, 12pins). All these make it
very suitable for portable devices.
The RDA5802N series ha s a power ful low-IF d igital
audio processor , th is ma ke it ha ve o ptimum soun d
quality with varying reception conditions.
The RDA5802N series support frequency range is from
50MHz to 115MHz.
24 23 22 21 20 19
GND 1
18 VDD
LNAN 2
GND 3
LNAP 4
GND 5
GND
PAD
RD A 5802N
17 GND
16 LOUT
15 ROUT
14 GND
GND 6
7
13 VDD
8 9 10 11 12
Figure1-1. RDA5802N Top View
1.1 Features
CMOS single-chpi fulyl -integrated FM tuner
Low power cosnumption
Total current cosnumption lower than20mAat 3.0V
powersupply when under normaslituation
Support worldwide frequency badn
50 -115MHz
Supportflexiblechannel spcaingmode
100KHz, 20K0Hz, 50KHz and25KHz
Support RDS/RBDS
Digital low-IF tuner
Image -reject down-converter
High performance A/cDonverter
IF selectivtyi performedinternally
Fully integrated digital frequencysyntheszier
Fully integrated on-chipRF andIFVCO
Fully integrated on-chiploopfilter
Autonomous search tuning
Support 32.768KHzcrystaloscillator
Digitalautogaincontrol(AGC)
Digitaladaptvie noise cancellation
Mono/ste reo switch
S oft mute
High cut
Progra mmablede-emphassi (50/75 s)
Receivesignalstrengthindicator(RSSI) andSNR
Bass boost
Volume control and mute
I 2S digtial output interface
Line-leveal nalogoutput votlage
32.768 KHz12M,24M,13M,2M6,19.2M,38.4MHz
Reference clock
Only support 2-wire bus interface
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.
http://www.Datasheet4U.com




RDA5802NM pdf, 반도체, 판매, 대치품
RDA Microelectronics, Inc.
2 Functional Description
RDA5802N/NS/NM FM Tuner V2.0
LNAP
LNAN
LNA
+
-
Limiter
32.768 KHz
RCLK
Synthesizer
2.7-5.5 V
VDD
LDO
VCO
I
PGA
Q
PGA
I
ADC
Q
ADC
Audio
DSP
Core
digital filter
MPX decoder
stereo/mono
audio
L
DAC
LOUT
R
DAC
ROUT
RDS
/RBDS
RSSI
GPIO
GPIO
Interface
Bus
SCLK
MCU
SDIO
VIO
Figure 2-1. RDA5802N FM Tuner Block Diagram
2.1 FM Receiver
The receiver uses a digital low-IF architecture that
avoids the dif ficulties a ssociated wi th direct
conversion while delive ring lowe r sol ution co st
and redu ces compl exity, and integ rates a lo w
noise ampli fier (L NA) supp orting the FM
broadcast b and (5 0 to 1 15MHz), a m ulti-phase
image-reject mixer array , a pro grammable gai n
control (PGA ), a high re solution anal og-to-digital
converters (ADCs), an audio DSP a nd a high -
fidelity digital-to-analog converters (DACs).
The LNA has dif ferential input po rts (L NAP an d
LNAN) a nd sup ports a ny input po rt by set
according registers bits (LNA_PORT_SEL[1:0]). It
default input common mode voltage is GND.
The limiter prevents ove rloading and l imits the
amount of intermod ulation produ cts created by
strong adjacent channels.
The multi-p hase mixe r array down co nverts the
LNA output differential RF signal to low-IF, it also
has im age-reject fun ction and harmonic to nes
rejection.
The PGA amplifies the mixer output IF signal an d
then digitized with ADCs.
The DSP core finishes the channel selection, FM
demodulation, stereo MP X deco der and output
audio signal. The MPX de coder can autonomous
switch from stereo to mo no to limit the output
noise.
The DA Cs convert digit al audio signal to analog
and change the volume at same time. The DACs
has low-pass feature and -3dB frequency is about
30 KHz.
2.2 Sy nthesizer
The frequ ency synthesi zer gene rates the local
oscillator signal which divide to multi-phase, then
be used to downconve rt the RF input to a
constant low intermedi ate freque ncy (IF). The
synthesizer reference clock is 32.768 KHz.
The synthesizer freq uency is define d by bit s
CHAN[9:0] with the ra nge fro m 5 0MHz 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.
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RDA5802NM 전자부품, 판매, 대치품
RDA Microelectronics, Inc.
RDA5802N/NS/NM FM Tuner V2.0
4 Receiver Characteristics
Table 4-1 Receiver Characteristics
(VDD = 3 V,VIO=3 V, TA = 25 °C, unless otherwise specified)
SYMBOL
PARAMETER
General specifications
Fin FM Input Frequency Range
Vrf Sensitivity1,2,3
IP3in
αam
S200
S400
VAFL; VAFR
S/N
αSCS
RL
THD
αAOI
Rmute
BWaudio
Input IP34 AGCD=
AM Suppression1,2
Adjacent Channel Selectivity
400KHz Selectivity
Audio L/R Output Voltage1,2
(Pins LOUT and ROUT)
Maximum Signal to Noise
Ratio1,2,3,5
Stereo Channel Separation
Audio Output Loading
Resistance
Audio Total Harmonic
Distortion1,3,6
Audio Output L/R
Imbalance1,6
Mute Attenuation Ratio1
Audio Response1
CONDITIONS
Adjust BAND Register
50MHz -
65MHz -
S/N=26dB
88MHz -
98MHz -
108MHz
115MHz -
1
m=0.3
±200KHz
±400KHz
Volume [3:0] =1111
Mono2
Stereo6
Single-ended 32
Volume[3:0]
=1111
Rload=1KΩ
Rload=32Ω
-
Volume[3:0]=0000
1KHz=0dB Low Freq9
±3dB point High Freq
MIN TYP
50
1.4
1.2
1.2
1.3
- 1.3
1.3
80 -
60 -
50 70
60 85
- 360
55
53 55
35
57
-
-
- 0.15
- 0.2
-
60 -
- 100
- 14
MAX
115
1.8
1.5
1.5
1.5
1.5
1.8
-
-
-
-
-
-
-
-
-
0.2
-
0.05
-
-
-
Pins LNAN, LNAP, LOUT, ROUT and NC(22,23)
Vcom_rfin
Pins LNA N/LNAP Input
Common Mode Voltage
0
Vcom
Audio Output Common Mode
Voltage8
1.0
1.05 1.1
Vcom_nc
Pins NC ( 22,23 ) Common
Mode Voltage
Floating
V
Notes:1. Fin=65 to 115MHz; Fmod=1KHz; de-emphasis=75s; MONO=1; L=R unless noted otherwise;
2. f=22.5KHz;
3. BAF = 300Hz to 15KHz, RBW <=10Hz;
5. PRF=60dBUV;
6. f=75KHz,fpilot=10%
8. At LOUT and ROUT pins
4. |f2-f1|>1MHz, f0=2xf1-f2, AGC disable, Fin=76 to 108MHz;
7. Measured at VEMF = 1 m V, f RF = 65 to 108MHz
9. Adjustable
UNIT
MHz
V EMF
dBV
dB
dB
dB
mV
dB
dB
Ω
%
dB
dB
Hz
V
V
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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