RF & DEMODULATOR FOR CMMB Rev.1.0
DVDD_COREUART_TXUART_RXSIM_RSTVBAT_1NCNCVSIM403938373635343332AVDD_IODVDD_CORELDO_ON
1.1 Features
z CMOS single-chip fully-integrated RF front-end
tuner and demodulator z U band of CMMB supported
z CMMB standard GY/T220 full compatible z Support BPSK ,QPSK,QAM16 modulation z On-chip LDPC , RS error correction z Three channels output simultaneously
z Integrated memory , no external memory required z Battery power supply directly , internal integrated
DC/DC, LDO
z Crystal support, required only one external crystal z I2C,UART,SPI,control and data interfaces support z support transparent or non-transparent stream
output
z SIM interface support z Low power consumption z Minimum external component z 5*5mm 40 pin QFN package
Figure1. RDA5891 Top View 1.2 Applications
z Mobile handset and smart phone z PMP
z PC,USB dongle
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.
DCDC_COREAVDD_ANARDA5891 integrated RF front-end tuner and channel demodulator in one chip to service china mobile multimedia broadcast system. RF front-end tuner support U band TV receive capacity which integrated all RF components such as LNA, Mixer, RF PLL, and Filter. RDA5891 integrates all demodulate modules include the memory required, with less external components needed in application circuit. Two solutions offered, RDA5891 with external UAM module, and RDA5891U integrated UAM module SIP on the same package.
AVSS_LNA1UHF_IN2AVSS_LNA3RF_TP4TP5NC6T17CFG08XTAL9XREF10T5311 General Description
SIM_CLK3029T4T3RESETNSIM_DATAT2DVDD_CORESPI_TXDSPI_RXDSPI_CLKSPI_CSGND PADRDA589140 Pins282726252423222111121314151617181920CFG1SCLINT_NVBAT_2SDATable of Contents
General Description....................................................................................................................................1 1.1 Features...............................................................................................................................................1 1.2 Applications........................................................................................................................................1 Table of Contents.................................................................................................................................................2 2 Functional Description................................................................................................................................3 3 Features........................................................................................................................................................4 4 Electrical Characteristics...........................................................................................................................6 5 Radio Characteristics..................................................................................................................................7 6 Pins Description...........................................................................................................................................8 7 Application Circuit....................................................................................................................................12 8 Package Physical Dimension....................................................................................................................13 9 PCB Land Pattern.....................................................................................................错误！未定义书签。 Change List........................................................................................................................................................15 1
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 2 of 15
2 Functional Description
Figure2. RDA5891 Block Diagram
On-chip RF front-end tuner circuit receive CMMB U band RF signal and down-convert to baseband signal. CMMB channel demodulator decoder the signal from RF front-end tuner , and save to on-chip memory, then inform external processor. Channel demodulator components include synchronization, FFT, bit descramble, equalization, bit demap, bit deinterleaving, LDPC decoder, byte deinterleaving, reed-solomon decoder. PMU module intergrated LDO, dc/dc converter. No external power components needed, only battery supply.
ARM core in charge of the timing of RF tuner, CMMB channel, and communication with the baseband chip. Multiple interfaces supported to provide control and data interface with external processor.
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
3 Features
RF front
♦ ♦ ♦ ♦ ♦ ♦
Build-in U band LNA,cover all CMMB frequency:474Mhz~858Mhz No external saw and RF switch needed
Fully integrated synthesizer without any external component
Support crystal with multiple frequency or external reference clock direct input Typical 4db noise figure in RF front
High performance in receiver sensitivity less than -97dbm full band and over 100dB AGC dynamic range
Channel decoder
♦ ♦ ♦ ♦ ♦ ♦
Compliant with CMMB standard: GY/T 220
Support all CMMB modulationr: BPSK,QPSK,QAM-16 Intergrated LDPC decoder, support mode 1/2 and mode 3/4 Intergrated Reed-solomon decoder
Onchip big memory to save Multiplex-frame data
Support transparent stream output and non-transparent stream output
CPU
♦ ARM core intergrated ♦ On-chip sram and rom
POWER
♦ ♦ ♦ ♦ ♦ ♦ ♦
3.3-4.2V power direct supply 1.8-3.3V IO voltage selection
On-chip SIM card power supply with 1.8-3.3V integrated dc/dc convertor to supply digital core integrated LDO to supply analog module lower power consumption operating mode
lower power leakage 20uA with power save mode
Interface
♦ UART ♦ I2C ♦ SPI
Package
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 4 of 15
♦ 5*5 mm 40pin QFN package
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 15
4 Electrical Characteristics
Table 4-1
SYMBOL
DC Electrical Specification (Recommended Operation Conditions):
DESCRIPTION
Supply Voltage from battery or LDO Ambient Temperature
MIN 3.3 -20
TYP 4.0 27
MAX 4.2 +70
UNIT V ℃
VBAT Tamb VIL VIH VTH
Notes:
CMOS Low Level Input Voltage(2) 0 0.3*VDD V CMOS High Level Input Voltage (2) 0.7*VDD VDD V CMOS Threshold Voltage(2) 0.5*VDD V 1. VDD=2.7~3.3V
Table 4-2
SYMBOL
DC Electrical Specification (Absolute Maximum Ratings):
DESCRIPTION
Ambient Temperature Input Current Input Voltage LNA Input Level
MIN -20
TYP
MAX +70
UNIT °C
Tamb IIN VIN Vlna
-10 +10 mA -0.3
VDD+0.3 +10
V dBm
Table 4-3 Power consumption specification
(VBAT1,2 = 4.0 V, TA = +27℃, unless otherwise specified)
STATE
Standby One channel
DESCRIPTION
Condition
TYP 15 50
UNIT uA mw
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
5 RF Characteristics
Table 5-1
Receiver Characteristics
(VBAT1, 2 = 4.0 V, TA = 27°C, unless otherwise specified) SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
General specifications Noise figure
2.6
3
3.5 -55
db
Sensitivity @0.1% BER
Adjacent channel selectivity C/I Notes:
-99 -100 -101 dBm -50
-52
dBc
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 7 of 15
6 Pins Description
DVDD_COREUART_TXUART_RXSIM_RSTNCSIM_CLK32
VBAT_1NCVSIM4039383736353433
AVSS_LNA1
UHF_IN2AVSS_LNA3
RF_TP4
TP5NC6T17CFG08XTAL9XREF10T531
3029T4T3RESETNSIM_DATAT2
DVDD_CORESPI_TXDSPI_RXDSPI_CLKSPI_CS
GND PADRDA589140 Pins282726252423222111121314151617181920
CFG1AVDD_IODVDD_CORELDO_ON
Figure3. RDA5891 Top View
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 8 of 15
DCDC_CORESCLINT_NAVDD_ANAVBAT_2SDA
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 9 of 15
Table 7-1
PIN
RDA5891 Pins Description
NO.
TYPE
DIRECT
DESCRIPTION
AVSS_LNA 1 Ground IN ground UHF_IN 2 RF IN CMMB U band RF input AVSS_LNA 3 Ground IN ground RF_TP TP T1 CFG0
4 5 7 8
TEST TEST TEST Digital
OUT OUT IN IN
RF test point
Analog module test point Test point, connect to ground
Config pin, connect to ground when in normal work mode
NC 6 NC No connect
XTAL 9 Aanlog IN Crystal input XREF 10 Aanlog OUT Crystal output CFG1
11
Digital
IN
Config pin, connect to ground when in normal work mode
SDA 12 Digital I/O I2C data SCL 13 Digital I/O I2C clock INT_N 14 Digital OUT Interruption output AVDD_IO
IO power supply, could be 1.8v – 3.3v
Power save control, when low ,enter chip power save
LDO_ON 16 Digital IN mode
Analog module power supply output, connect to a AVDD_ANA 17 PWR OUT decouple capacitance
Digital core power supply output, connect to a decouple
DVDD_CORE 18 PWR OUT capacitor
VBAT_2 19 PWR IN DC/DC module power supply ,need connect to 3.3v – 4.2vDCDC_CORE SPI_CS SPI_CLK SPI_RXD SPI_TXD
20 21 22 23 24
PWR Digital Digital Digital
OUT IN IN IN
DC/DC output for digital core power supply SPI chip selection signal SPI clock input SPI data input
15
PWR
IN
SPI data output
Digital core power supply output, connect to a decouple
DVDD_CORE 25 PWR OUT capacitor
T2 26 TEST OUT NC SIM_DATA 27 Digital I/O SIM card DATA RESETN T3 T5 SIM_CLK SIM_RST
28 29 31 32 33
Digital TEST TEST Digital Digital
IN IN IN OUT OUT
Chip Reset pin ,low level active Connect to ground Connect to ground SIM card clock output
Digital OUT
T4 30 TEST OUT NC
SIM card reset output
SIM card power supply output, could be configure to VSIM 34 PWR OUT 1.8v-3.3v
Digital core power supply output, connect to a decouple
DVDD_CORE 35 PWR OUT capacitor
VBAT_1 36 PWR IN Analog LDO module power supply, connect to 3.3v – 4.2v NC NC
37 39
TEST TEST
IN IN
Connect to ground Connect to ground
UART_RX 38 Digital IN UART receive pin
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 10 of 15
UART_TX
40
Digital
OUT UART transmit pin
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 15
7 Application Circuit
Please refer to the < 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 12 of 15 8 Package Physical Dimension Figure5 illustrates the package details for the RDA5891. The package is lead-free and RoHS-compliant. Figure5. 40-Pin 5x5 Quad Flat No-Lead (QFN) 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 13 of 15 RoHS Compliant The product does not contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB) or polybrominated biphenyl ethers (PBDE), and are therefore considered RoHS compliant. ESD Sensitivity Integrated circuits are ESD sensitive and can be damaged by static electricity. Proper ESD techniques should be used when handling these devices. 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 14 of 15 Change List REV DATE AUTHER CHANGE DESCRIPTION v1.0 2011-8-1 shenglongluo Initial version. 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 15 of 15 因篇幅问题不能全部显示，请点此查看更多更全内容