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RDA5807SS の電気的特性と機能

RDA5807SSのメーカーはRDAです、この部品の機能は「SINGLE-CHIP BROADCAST FM RADIO TUNER」です。


製品の詳細 ( Datasheet PDF )

部品番号 RDA5807SS
部品説明 SINGLE-CHIP BROADCAST FM RADIO TUNER
メーカ RDA
ロゴ RDA ロゴ 




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RDA5807SS Datasheet, RDA5807SS PDF,ピン配置, 機能
RDA5807SS
SINGLE-CHIP BROADCAST FM RADIO TUNER
Rev.1.0 Jul.2010
1 General Description
The RDA5807SS 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 SSOP16. It is completely
adjustment-free. All these make it very suitable for
portable devices.
The RDA5807SS has a powerful low-IF digital
audio processor, this make it have optimum sound
quality with varying reception conditions.
The RDA5807SS can be tuned to the worldwide
frequency band.
Figure 1-1. RDA5807SS Top View
1.1 Features
CMOS single-chip fully-integrated FM tuner
Low power consumption
Total current consumption lower than 17.5mA
at 3.3V power supply
Support worldwide frequency band
76 -108 MHz
Digital low-IF tuner
Image-reject down-converter
High performance A/D converter
IF selectivity performed internally
Autonomous search tuning
Support crystal oscillator
32.768 KHz 12M,24M,13M,26M,19.2M,38.4MHz
Reference clock
2-wire serial control bus interface
Digital auto gain control (AGC)
Mono/stereo switch
Soft mute
High cut
Signal dependent mono to stereo blend [Stereo
Noise Cancelling (SNC)]
Adjustment-free stereo decoder
Autonomous search tuning function
Bass boost
Standby mode
Programmable de-emphasis (50/75 s)
Directly support 32resistance loading
Integrated LDO regulator
2.7 to 5.5 V operation voltage
SOP16 package
1.2 Applications
Cellular handsets
MP3, MP4 players
Portable radios
PDAs, Notebook PCs
Copyright © RDA Microelectronics Inc. 2008. 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





RDA5807SS pdf, ピン配列
RDA Microelectronics, Inc.
3 Functional Description
RDA5807SS FM Tuner V1.0
FMIN C1
GND
C2
LNA
+
-
Limiter
0/90
I
PGA
Q
PGA
32.768 KHz
RCLK
2.7-5.5 VDVDD
AVDD
Synthesizer
LDO
VCO
I
ADC
Q
ADC
Audio
DSP
Core
digital filter
MPX decoder
stereo/mono
audio
L
DAC
LOUT
R
DAC
ROUT
RSSI
GPIO
Interface
Bus
GPIO
RST
SEN MCU
SCLK
SDIO
VIO
Figure 3-1. RDA5807SS 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 (76 to 108MHz), a quadrature
image-reject mixer, 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). The LNA default input resistance is 150
Ohm under single or dual input mode. 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 quadrature mixer down converts the LNA
output differential RF signal to low-IF, it also has
image-reject function.
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 Synthesizer
The frequency synthesizer generates the local
oscillator signal which divide to quadrature, then
be used to down convert the RF input to a
constant low intermediate frequency (IF). The
synthesizer reference clock is 32.768 KHz,12M,
24M, 13M, 26M, 19.2M, 38.4MHz. select by CLK MODE[2:0]
BIT.
3.3 Power Supply
The RDA5807SS integrated one LDO which
supplies power to the chip. The external supply
voltage range is 2.7-5.5 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 3 of 15


3Pages


RDA5807SS 電子部品, 半導体
RDA Microelectronics, Inc.
RDA5807SS FM Tuner V1.0
5 Receiver Characteristics
Table 5-1 Receiver Characteristics
(VDD = 2.7 to 5.5 V, TA = -25 to 85 °C, unless otherwise specified)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
General specifications
BAND=0
87
Fin
FM Input Frequency
BAND=1
76
108
91
Vrf
Rin
Cin
IP3in
αam
S200
Sensitivity1,2,3
LNA Input Resistance 7
LNA Input Capacitance 7
Input IP34
AM Suppression1,2
Adjacent Channel Selectivity
(S+N)/N=26dB
AGCD=1
m=0.3
±200KHz
1.5
150
24
80
40 -
45
2
6
-
-
-
Left and Right Audio
VAFL; VAFR
Frequency Output Voltage Volume_dac[3:0] =1111
110
(Pins LOUT and ROUT)
(S+N)/N
αSCS
THD
αAOI
RL
Maximum Signal Plus Noise
to Noise Ratio1,2,3,5
Stereo Channel Separation
Audio Total Harmonic
Distortion1,3,6
Audio Output L/R Imbalance
Audio Output Loading
Resistance
Single-ended
54 60
-
35 -
-
0.3 0.5
1
32 -
-
Pins LNAN, LNAP, LOUT, ROUT and NC(22,23)
Vcom_rfin
Pins LNAN and LNAP Input
Common Mode Voltage
Float
Vcom
Audio Output Common
Mode Voltage8
1.2 1.25 1.3
Vcom_nc
Pins NC (22, 23) Common
Mode Voltage
0.45 0.5
0.55
! The NC(22, 23) pins SHOULD BE left floating.
Notes:
1. Fin=76 to 108MHz; Fmod=1KHz; de-emphasis=75s; MONO=1; L=R unless noted otherwise;
2. f=22.5KHz;
3. BAF = 300Hz to 15KHz, RBW <=10Hz;
4. |f2-f1|>1MHz, f0=2xf1-f2, AGC disable, Fin=76 to 108MHz;
5. PRF=60dBUV;
6. f=75KHz.
7. Measured at VEMF = 1 m V, f RF = 76 to 108MHz
8. At LOUT and ROUT pins
UNIT
MHz
MHz
V EMF
pF
dBV
dB
dB
mV
dB
dB
%
dB
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 15

6 Page



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共有リンク

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部品番号部品説明メーカ
RDA5807SP

SINGLE-CHIP BROADCAST FM RADIO TUNER

RDA
RDA
RDA5807SS

SINGLE-CHIP BROADCAST FM RADIO TUNER

RDA
RDA


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