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RDA5807HS 데이터시트 PDF




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부품번호 RDA5807HS 기능
기능 SINGLE-CHIP BROADCAST FM RADIO TUNER
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RDA5807HS 데이터시트, 핀배열, 회로
RDA5807HS
SINGLE-CHIP BROADCAST FM RADIO TUNER
Rev.1.2–July.2011
1 General Description
The RDA5807HS is a new generation 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 3X3 mm
and is completely adjustment-free. All these make
it very suitable for portable devices.
The RDA5807HS has a powerful low-IF digital
audio processor, this make it have optimum sound
quality with varying reception conditions.
The RDA5807HS can be tuned to the worldwide
frequency band, even support frequency range
50~65MHz.
1.1 Features
CMOS single-chip fully-integrated FM tuner
Low power consumption
Total current consumption lower than 21mA at 3.0V
power supply when under normal situation
Support worldwide frequency band
50 -108 MHz
Support flexible channel spacing mode
100KHz, 200KHz, 50KHz and 25KHz
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)
20 19 18 17 16
LNAN 1
15 GPIO3
RFGND 2
LNAP 3
GND 4
GND
PAD
RDA 5807HS
14 GND
13 LOUT
12 ROUT
GND 5
11 GND
6 7 8 9 10
Figure 1-1. RDA5807HS Top View
Digital adaptive noise cancellation
Mono/stereo switch
Soft mute
High cut
Programmable de-emphasis (50/75 µs)
Receive signal strength indicator (RSSI) and SNR
Bass boost
Volume control and mute
I2S digital output interface
Line-level analog output voltage
32.768 KHz 12M,24M,13M,26M,19.2M,38.4MHz
Reference clock
2-wire serial control bus interface
Directly support 32Ω resistance loading
Integrated LDO regulator
1.8 to 5.5 V operation voltage
3X3mm 20 pin QFN package
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.
Free Datasheet http://www.Datasheet4U.com




RDA5807HS pdf, 반도체, 판매, 대치품
RDA Microelectronics, Inc.
3 Functional Description
RDA5807HS FM Tuner V1.2
LNAP
LNAN
LNA
+
-
Limiter
I
PGA
Q
PGA
I
ADC
Q
ADC
Audio
DSP
Core
digital filter
MPX decoder
stereo/mono
audio
L
DAC
LOUT
R
DAC
ROUT
32.768 KHz
RCLK
Synthesizer1
VCO
ΔΣ-Synthesizer
2.7-5.5 V
VDD
LDO
RDA5807HS
RSSI
GPIO
Interface
Bus
GPIO
RST
SEN MCU
SCLK
SDIO
VIO
Figure 3-1. RDA5807HS FM Tuner Block Diagram
3.1 FM Receiver
The receiver uses a digital low-IF architecture that
avoids the difficulties associated with direct
conversion while delivering lower solution cost
and reduces complexity, and integrates a low
noise amplifier (LNA) supporting the FM
broadcast band (50 to 108MHz), a multi-phase
image-reject mixer array, a programmable gain
control (PGA), a high resolution analog-to-digital
converters (ADCs), an audio DSP and a high-
fidelity digital-to-analog converters (DACs).
The LNA has differential input ports (LNAP and
LNAN) and supports any input port by set
according registers bits (LNA_PORT_SEL[1:0]). It
default input common mode voltage is GND.
The limiter prevents overloading and limits the
amount of intermodulation products created by
strong adjacent channels.
The multi-phase mixer array down converts the
LNA output differential RF signal to low-IF, it also
has image-reject function and harmonic tones
rejection.
The PGA amplifies the mixer output IF signal and
then digitized with ADCs.
The DSP core finishes the channel selection, FM
demodulation, stereo MPX decoder and output
audio signal. The MPX decoder can autonomous
switch from stereo to mono to limit the output
noise.
The DACs convert digital audio signal to analog
and change the volume at same time. The DACs
has low-pass feature and -3dB frequency is about
30 KHz.
3.2 Synthesizer1
The frequency synthesizer 1 generates the local
oscillator signal which divide to multi-phase, then
be used to downconvert the RF input to a
constant low intermediate frequency (IF). The
synthesizer reference clock is 32.768 KHz.
The synthesizer frequency is defined by bits
CHAN[9:0] with the range from 50MHz to
108MHz.
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 3 of 22
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RDA5807HS 전자부품, 판매, 대치품
RDA Microelectronics, Inc.
RDA5807HS FM Tuner V1.2
5 Receiver Characteristics
Table 5-1 Receiver Characteristics
(VDD = 3 V, TA = 25 °C, unless otherwise specified)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
General specifications
Fin
FM Input Frequency Range Adjust BAND Register
50
108
50MHz - 1.5
-
65MHz - 1.5
-
V rf
Sensitivity1,2,3
S/N=26dB 88MHz - 1.2 1.5
98MHz - 1.2 1.5
108MHz
-
1.3
1.5
IP3in
α am
Input IP34
AM Suppression1,2
AGCD=1
m=0.3
80 -
40 -
-
-
S 200
Adjacent Channel Selectivity
±200KHz
50 70
-
S 400
VAFL; VAFR
400KHz Selectivity
Audio L/R Output Voltage1,2
(Pins LOUT and ROUT)
±400KHz
Volume [3:0] =1111
60 85
- 420
-
-
Maximum Signal to Noise
S/N
Ratio1,2,3,5
Mono2
Stereo6
55
53
57
55
-
-
α SCS
RL
THD
α AOI
R mute
BW audio
Stereo Channel Separation
Audio Output Loading
Resistance
Audio Total Harmonic
Distortion1,3,6
Audio Output L/R
Imbalance1,6
Mute Attenuation Ratio1
Audio Response1
Single-ended
Volume[3:0]
=1111
R load =1KΩ
R load =32Ω
Volume[3:0]=0000
1KHz=0dB Low Freq9
±3dB point High Freq
35
32
-
-
-
60
-
-
-
-
0.15
0.2
-
-
100
14
-
-
0.2
-
0.05
-
-
-
Pins LNAN, LNAP, LOUT, ROUT and NC(22,23)
V com_rfin
Pins LNAN/LNAP Input
Common Mode Voltage
0
V com
Audio Output Common Mode
Voltage8
1.0 1.05
1.1
V com_nc
Pins NC (22, 23) Common
Mode Voltage
Floating
! The NC(22, 23) pins SHOULD BE left floating.
Notes:
1. Fin=65 to 108MHz; F mod=1KHz; de-emphasis=75µs; MONO=1; L=R unless noted otherwise;
2. f=22.5KHz;
3. BAF = 300Hz to 15KHz, RBW <=10Hz;
4. |f 2-f1|>1MHz, f0=2xf1-f 2, AGC disable, Fin=76 to 108MHz;
5. P RF=60dB U V;
6. f=75KHz,fpilot=10%
7. Measured at VEMF = 1 m V, f RF = 65 to 108MHz
8. At LOUT and ROUT pins
9. Adjustable
UNIT
MHz
µV EMF
dBµV
dB
dB
dB
mV
dB
dB
Ω
%
dB
dB
Hz
V
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.
Page 6 of 22
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SINGLE-CHIP BROADCAST FM RADIO TUNER

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