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PDF RDA5802E Data sheet ( Hoja de datos )
| Número de pieza | RDA5802E | |
| Descripción | SINGLE-CHIP BROADCAST FM RADIO TUNER | |
| Fabricantes | RDA | |
| Logotipo |  |
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RDA5802E
SINGLE-CHIP BROADCAST FM RADIO TUNER
Rev.1.7–Jun.2009
1 General Description
The RDA5802E (RDA5802 Enhanced) 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 RDA5802E has a powerful low-IF digital audio
processor, this make it have optimum sound quality
with varying reception conditions.
The RDA5802E can be tuned to the worldwide
frequency band.
1.1 Features
Figure 1-1. RDA5802E Top View
l CMOS single-chip fully-integrated FM tuner
l Low power consumption
Ø Total current consumption lower than 22mA at 3.0V
power supply
l Support worldwide frequency band
Ø 65 -108 MHz
l Digital low-IF tuner
Ø Image-reject down-converter
Ø High performance A/D converter
Ø IF selectivity performed internally
l Fully integrated digital frequency synthesizer
Ø Fully integrated on-chip RF and IF VCO
Ø Fully integrated on-chip loop filter
l Autonomous search tuning
l Support 32.768KHz crystal oscillator
l Digital auto gain control (AGC)
l Digital adaptive noise cancellation
Ø Mono/stereo switch
Ø Soft mute
Ø High cut
l Programmable de-emphasis (50/75 µs)
l Receive signal strength indicator (RSSI)
l Bass boost
l Volume control
l I 2S digital output interface
l Line-level analog output voltage
l 32.768 KHz 12M,24M,13M,26M,19.2M,38.4MHz
Reference clock
l 2-wire and 3-wire serial control bus interface
l Directly support32Ω resistance loading
l Integrated LDO regulator
Ø 1.8 to 5.5 V operation voltage
l 4X4mm 24 pin QFN package
1.2 Applications
l Cellular handsets
l MP3, MP4 players
l Portable radios，PDAs, Notebook
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
1 page  
RDA Microelectronics, Inc.
RDA5802E FM Tuner V1.7
SCK
WS
SD
1 SCK
MSB
LEFT CHANNEL
RIGHT CHANNEL
LSB
1 SCK
MSB
LSB
Figure 3-2. I2S Digital Audio Format
4 Electrical Characteristics
Table 4-1 DC Electrical Specification (Recommended Operation Conditions):
SYMBOL
AVDD
DVDD
VIO
Tamb
VIL
VIH
VTH
DESCRIPTION
Analog Supply Voltage
Digital Supply Voltage
Interface Supply Voltage
Ambient Temperature
CMOS Low Level Input Voltage
CMOS High Level Input Voltage
CMOS Threshold Voltage
MIN
1.8
1.8
1.5
-20
0
0.7*VDD
TYP
3.3
3.3
-
27
0.5*VDD
MAX
5.5
5.5
3.6
+70
0.3*DVDD
DVDD
UNIT
V
V
V
℃
V
V
V
Table 4-2 DC Electrical Specification (Absolute Maximum Ratings):
SYMBOL
DESCRIPTION
VIO Interface Supply Voltage
Tamb
IIN
VIN
Vlna
Notes:
Ambient Temperature
Input Current (1)
Input Voltage(1)
LNA FM Input Level
1. For Pin: SCLK, SDIO, SEN, MODE
MIN TYP
-0.5
-40
-10
-0.3
Table 4-3 Power Consumption Specification
(VDD = 1.8 to 5.5 V, TA = -25 to 85 ℃, unless otherwise specified)
SYMBOL
DESCRIPTION
CONDITION
IA Analog Supply Current
ID Digital Supply Current
IVIO Interface Supply Current
IAPD Analog Powerdown Current
IDPD Digital Powerdown Current
IVIO Interface Powerdown Current
ENABLE=1
ENABLE=1
SCLK and RCLK inactive
ENABLE=0
ENABLE=0
ENABLE=0
MAX
+4
+90
+10
VIO+0.3
-20
TYP
18
3
90
2
2
10
UNIT
V
°C
mA
V
dBm
UNIT
mA
mA
µA
µA
µA
µA
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
5 Page 
RDA Microelectronics, Inc.
RDA5802E FM Tuner V1.7
REG BITS
NAME
FUNCTION
DEFAULT
05H 15
INT _MODE
00 = High impedance
01 = Reserved
10 = Low
11 = High
If 0, generate 5ms interrupt;
1
If 1, interrupt last until read reg0CH action
occurs.
14:8
SEEKTH[6:0]
Seek Threshold. RSSI scale is logarithmic.
0001000
7:6 LNA_PORT_SEL[1:0]
0000000 = min RSSI
LNA input port selection bit:
10
5:4 LNA_ICSEL_BIT[1:0]
00: no input
01: LNAN
10: LNAP
11: dual port input
Lna working current bit:
10
3:0 VOLUME[3:0]
06H 12
I2s_mode_select
00=1.8mA
01=2.1mA
10=2.5mA
11=3.0mA
DAC Gain Control Bits (Volume).
0000=min; 1111=max
Volume scale is logarithmic
If 0, master mode;
1111
0
7:4 I2s_ws_cnt[4:0]
Only valid
in master mode
If 1, slave mode.
4'b1000: WS_STEP_48;
4'b0111: WS_STEP=44.1kbps;
4'b0110: WS_STEP=32kbps;
4'b0101: WS_STEP=24kbps;
4'b0100: WS_STEP=22.05kbps;
4'b0011: WS_STEP=16kbps;
4'b0010: WS_STEP=12kbps;
4'b0001: WS_STEP=11.025kbps;
4'b0000: WS_STEP=8kbps;
0000
0AH 14
STC
Seek/Tune Complete.
0
13 SF
10 ST
9:0 READCHAN[9:0]
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].
Stereo Indicator.
0 = Mono; 1 = Stereo
Stereo indication is available on GPIO3 by
setting GPIO1[1:0] =01.
Read Channel.
0
1
8’h00
BAND = 0
Frequency = Channel Spacing
READCHAN[9:0]+ 87.0 MHz
BAND = 1 or 2
(kHz)
x
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 23
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