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RDA5807P s ingle -c hip b roadcast fm r adio t uner rev.1.0?aug.2008 1 general description the RDA5807P is a single-chip broadcast fm stereo radio tuner with fully integrated synthesizer, if selectivity and mpx decoder. the tuner uses the cmos process, suppo rt multi-interface and require the least external component. the package size is 4x4mm 2 and is completely adjustment-free. all these ma ke it very suitable for portable devices. the RDA5807P has a powerful low-if digital audio processor, this make it have optimum sound quality with varying reception conditions. the RDA5807P can be tuned to the worldwide frequency band. figure 1-1. RDA5807P top view the RDA5807P is pin-to-pin compatible to rda5800,rda5800c and rda5802. 1.1 features z cmos single-chip fully-integrated fm tuner z low power consumption ? total current consumption lower than 17.5ma at 3.3v power supply z support worldwide frequency band ? 76 -108 mhz z digital low-if tuner ? image-reject down-converter ? high performance a/d converter ? if selectivity pe rformed internally z fully integrated digital frequency synthesizer ? fully integrated on-chip rf and if vco ? fully integrated on-chip loop filter z autonomous search tuning z support crystal oscillator z 32.768 khz 12m,24m,13m,26m,19.2m,38.4mhz reference clock z 2-wire and 3-wire serial control bus interface z digital auto gain control (agc) ? mono/stereo switch ? soft mute ? high cut z signal dependent mono to stereo blend [stereo noise cancelling (snc)] z adjustment-free stereo decoder z autonomous search tuning function z bass boost z standby mode z programmable de-emphasis (50/75 s) z directly support 32 ? resistance loading z integrated ldo regulator ? 2.7 to 5.5 v operation voltage z 4x4mm 24 pin qfn package copyright ? rda microelectronics inc. 2008. all rights are reserved. the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 2 of 20 1.2 applications z cellular handsets z mp3, mp4 players z portable radios z pdas, notebook pcs free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 2 of 20 2 table of contents 1 general description ....................................................................................................................................1 1.1 features ............................................................................................................................... ..........1 1.2 applications ............................................................................................................................... ...2 2 table of contents .........................................................................................................................................2 3 functional description ............................................................................................................................... .3 3.1 fm receiver ............................................................................................................................... ...3 3.2 synthesizer ............................................................................................................................... .....3 3.3 power supply ............................................................................................................................... .3 3.4 reset and control interface select .............................................................................................4 3.5 control interface ...........................................................................................................................4 3.6 gpio outputs ............................................................................................................................... .4 4 electrical characteristics ...........................................................................................................................5 5 receiver characteristics .............................................................................................................................6 6 serial interface ............................................................................................................................................7 6.1 i 2 c interface timing ......................................................................................................................7 7 7 pins description ...................................................................................................................................8 8 application diagram ............................................................................................................................... ..10 8.1 audio loading resistance larger than 32 ? & tcxo application: ...........................................10 8.1.1 bill of materials: .........................................................................................................................10 8.2 audio loading resistance lower than 32 ? & tcxo application: ........................................... 11 8.2.1 bill of materials: ......................................................................................................................... 11 8.3 audio loading resistance larger than 32 ? & dcxo application: ..........................................12 8.3.1 bill of materials: .........................................................................................................................12 8.4 mcu codec application: ........................................................................................................13 8.4.1 bill of materials: .........................................................................................................................13 9 package physical dimension ....................................................................................................................14 10 pcb land pattern ............................................................................................................................... ..15 11 change list ............................................................................................................................... ..................18 12 notes ............................................................................................................................... ........................18 13 contact information ............................................................................................................................... ..19 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 3 functional description the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 3 of 20 i adc l dac r dac i pga q adc q pga 0/90 + - audio dsp core digital filter mpx decoder stereo/mono audio vco lna synthesizer gpio interface bus rssi vio sdio sclk sen rst mcu gpio RDA5807P lout rout lnan lnap rclk 2.7-5.5 v 32.768 khz avdd dvdd c1 c2 limiter ldo figure 3-1. RDA5807P 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 RDA5807P integrated one ldo which supplies power to the chip. the external supply voltage range is 2.7-5.5 v. free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 3.4 reset and control interface select the RDA5807P is reset itself when vio is power up. and also support soft reset. the control interface is select by mode pin. the mode pin is low ,i2c interface is select. the mode pin is set to vio, spi interface is select. the RDA5807P could enter into a power-down mode to reduce power consumption. in power-down mode, analog and digital circuitry are both disabled, while maintaining register configuration and keeping control interface active. details refer to RDA5807P programming guide . 3.5 control interface the RDA5807P supports i 2 c control interface. user could program the chip through the bus. the i 2 c interface is compliant to i 2 c bus specification 2.1. it includes two pins: sclk and sdio. an i 2 c interface transfer begins with start condition, a command byte and data bytes, each byte has a followed ack (or nack) bit, and ends with stop condition. the command byte includes a 7-bit chip address and an r/w bit. the ack (or nack) is always sent out by receiver. when in write transfer, data bytes is written out from mcu, and when in read transfer, data bytes is read out from RDA5807P. there is no visible register address in i 2 c interface transfers. RDA5807P always gives out ack after every byte, and mcu gives out stop condition when register programming is finished. for read transfer, after command byte from mcu, RDA5807P sends out the first register high byte, then the first register low byte, then the second register high byte, till receives nack from mcu. mcu gives out ack for data bytes besides last data byte. mcu gives out nack for last data byte, and then RDA5807P will return the bus to mcu, and mcu will give out stop condition. the RDA5807P supported two type i 2 c interface:RDA5807P mode and tea5767 mode. the different register defined in different interface mode. details refer to RDA5807P programming guide . 3.6 gpio outputs the RDA5807P has three gpios and only used in RDA5807P mode. the function of gpios could programmed with bits gpio1[1:0], gpio2[1:0], gpio3[1:0] and i2sen. if i2sen is set to low, gpio pins could be programmed to output low or high or high-z, or be programmed to output interrupt and stereo indicator with bits gpio1[1:0], gpio2[1:0], gpio3[1:0]. gpio2 could be programmed to output a low interrupt (interrupt will be generated only with interrupt enable bit stcien is set to high) when seek/tune process completes. gpio3 could be programmed to output stereo indicator bit st. constant low, high or high-z functionality is available regardless of the state of va and vd supplies or the enable bit. the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 4 of 20 figure 3-2. i2s digital audio format sck msb sd s w 1 sck left channel lsb msb ri ght channel 1 sck lsb free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 4 electrical characteristics table 4-1 dc electrical specificati on (recommended operation conditions): symbol description min typ max unit avdd analog supply voltage 2.7 3.3 5.5 v dvdd digital supply voltage 2.7 3.3 5.5 v v io interface supply voltage 1.5 - 3.6 v t amb ambient temperature -20 27 +70 v il cmos low level input voltage 0 0.3*dvdd v v ih cmos high level input voltage 0.7*vdd dvdd v v th cmos threshold voltage 0.5*vdd v table 4-2 dc electrical specificat ion (absolute maximum ratings): symbol description min typ max unit vio interface supply voltage -0.5 +4 v t amb ambient temperature -40 +90 c i in input current (1) -10 +10 ma v in input voltage (1) -0.3 vio+0.3 v v lna lna fm input level -20 dbm notes: 1. for pin: sclk, sdio, sen, rst. table 4-3 power consumption specification (vdd = 2.7 to 5.5 v, t a = -25 to 85 , unless otherwise specified) symbol description condition typ unit i a analog supply current enable=1 15 ma i d digital supply current enable=1 2.5 ma i vio interface supply current sclk and rclk inactive 1 a i apd analog powerdown current enable=0 2 a i dpd digital powerdown current enable=0 2 a the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 5 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 6 of 20 5 receiver characteristics table 5-1 receiver characteristics (vdd = 2.7 to 5.5 v, t a = -25 to 85 c, unless otherwise specified) symbol parameter conditions min typ max unit general specifications band=0 87 108 mhz f in fm input frequency band=1 76 91 mhz v rf sensitivity 1,2,3 (s+n)/n=26db 1.5 2 v emf r in lna input resistance 7 150 c in lna input capacitance 7 2 4 6 pf ip3 in input ip3 4 agcd=1 80 - db v am am suppression 1,2 m=0.3 40 - - db s 200 adjacent channel selectivity 200khz 45 - db v afl ; v afr left and right audio frequency output voltage (pins lout and rout) volume_dac[3:0] =1111 110 mv (s+n)/n maximum signal plus noise to noise ratio 1,2,3,5 54 60 - db scs stereo channel separation 35 - - db thd audio total harmonic distortion 1,3,6 0.3 0.5 % aoi audio output l/r imbalance 1 db r l audio output loading resistance single-ended 32 - - pins lnan, lnap, lout, rout and nc(22,23) v com_rfin pins lnan and lnap input common mode voltage float v v com audio output common mode voltage 8 1.2 1.25 1.3 v v com_nc pins nc (22, 23) common mode voltage 0.45 0.5 0.55 v ! the nc(22, 23) pins should be left floating. notes: 1. f in =76 to 108mhz; f mod =1khz; de-emphasis=75 s; mono=1; l=r unless noted otherwise; 2. f=22.5khz; 3. b af = 300hz to 15khz, rbw <=10hz; 4. |f 2 -f 1 |>1mhz, f 0 =2xf 1 -f 2 , agc disable, f in =76 to 108mhz; 5. p rf =60db u v; 6. f=75khz. 7. measured at v emf = 1 m v, f rf = 76 to 108mhz 8. at lout and rout pins free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 6 serial interface 6.1 i 2 c interface timing table 6-1 i 2 c interface timing characteristics (vdd = 2.7 to 5.5 v, t a = -25 to 85 c, unless otherwise specified) parameter symbol test condition min typ max unit sclk frequency f scl 0 - 400 khz sclk high time t high 0.6 - - s sclk low time t low 1.3 - - s setup time for start condition t su:sta 0.6 - - s hold time for start condition t hd:sta 0.6 - - s setup time for stop condition t su:sto 0.6 - - s sdio input to sclk setup t su:dat 100 - - ns sdio input to sclk hold t hd:dat 0 - 900 ns stop to start time t buf 1.3 - - s sdio output fall time t f:out 20+0.1c b - 250 ns sdio input, sclk rise/fall time t r:in / t f:in 20+0.1c b - 300 ns input spike suppression t sp - - 50 ns sclk, sdio capacitive loading c b - - 50 pf digital input pin capacitance 5 pf figure 6-1. i 2 c interface write timing diagram figure 6-2. i 2 c interface read timing diagram the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 7 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 7 7 pins description figure 7-1. RDA5807P top view table 7-1 RDA5807P pins description symbol pin description gnd 1,5,6,14,17,24 ground. c onnect to ground plane on pcb lnan,lnap 2,4 lna input port. for single-ended input, lnan should be connected to rfgnd rfgnd 3 lna ground. connect to ground plane on pcb mode 7 control interface select the mode pin is low ,i2c interface is select. the mode pin is set to vio, spi interface is select. sen 8 latch enable (active low) input for serial control bus sclk 9 clock input for serial control bus sdio 10 data input/output for serial control bus rclk 11 external reference clock input vio 12 power supply for i/o dvdd 13 power supply for digital section rout,lout 15,16 right/left audio output avdd 18 power supply for analog section gpio1,gpio2,gpio3 19,20,21 g eneral purpose input/output nc 22,23 no connect the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 8 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 table 7-2 internal pin configuration symbol pin description lnan/lnap 2/4 rclk 11 sclk/sdio 9/10 gpio1/gpio2/gpio3 19/20/21 in gpio1\2\3 out the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 9 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 8 application diagram 8.1 audio loading resistance larger than 32 ? & tcxo application: the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 10 of 20 1 13 j1 mode sen sclk rclk sdio vio gpio1 gpio3 gpio2 v1 l3 100nh c3 24pf c4 125uf c5 125uf c6 24nf notes: 1. j1: common 32 ? resistance headphone; 2. u1: RDA5807P chip; 3. v1: analog and digital power supply (2.7~5.5v); 4. fm choke (l3 and c3) for audio common and lna input common; 5. pins nc(22, 23), should be leaved floating; 6.set mode to select control interface(gnd?i2c,vio?spi); 6. place c6 close to avdd pin. figure 8-1. RDA5807P fm tuner app lication diagram (tcxo application) 8.1.1 bill of materials: component value description supplier u1 RDA5807P broadcast fm radio tuner rda j1 common 32 ? resistance headphone l3/c3 100nh/24pf lc chock for lna input murata c4,c5 125f audio ac couple capacitors murata c6 24nf power supply bypass capacitor murata free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 8.2 audio loading resistance lower than 32 ? & tcxo application: notes: 1. j1: resistance lower than 32 ? audio speaker or headphone 2. u1: RDA5807P chip 3. v1: analog and digital power supply (2.7~5.5v) 4. fm choke (l3 and c3) for audio common and lna input common 5. pins nc(22, 23),should be leaved floating; 6.set mode to select control interface(gnd?i2c,vio?spi); 7. place c6 close to avdd pin 8. changing the resistor r4 and r5 value can change the output volume. 9. place u2 close to u1 figure 8-2. RDA5807P fm tuner applicati on diagram (audio amplifier application) 8.2.1 bill of materials: component value description supplier u1 RDA5807P broadcast fm radio tuner rda u2 rda2892 audio amplifier rda j1 audio speaker l1/c1; l2/c2 100nh/24pf lc chock for audio output murata l3/c3 100nh/24pf lc chock for lna input murata c6 24nf power supply bypass capacitor murata r4,r5 20k ? audio amplifier feedback resistors murata r2/c7; r3/c8 20k ? /0.39f audio high-passed filter and amplifier input resistors murata the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 11 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 8.3 audio loading resistance larger than 32 ? & dcxo application: notes: 1. j1: common 32 ? resistance headphone; 2. u1: RDA5807P chip; 3. u2: 32.768khz crystal oscillator 4. v1: analog and digital power supply (2.7~5.5v); 5. fm choke (l3 and c3) for audio common and lna input common; 6. pins nc(22, 23) should be leaved floating; 7.set mode to select control interface(gnd?i2c,vio?spi); 8. place c2 close to avdd pin. figure 8-3. RDA5807P fm tuner application diagram (dcxo application) 8.3.1 bill of materials: component value description supplier u1 RDA5807P broadcast fm radio tuner rda u2 dcxo crystal oscillator 32.768khz <=50ppm j1 common 32 ? resistance headphone l3/c3 100nh/24pf lc chock for lna input murata c4,c5 125f audio ac couple capacitors murata c2 24nf power supply bypass capacitor murata the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 12 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 8.4 mcu codec application: notes: 1. j1: common 32 ? resistance headphone; 2. u1: RDA5807P chip; 3. u2: 32.768khz crystal oscillator 3. v1: analog and digital power supply (2.7~5.5v); 4. fm choke l3 for lna input common; 5. pins nc(22, 23) should be leaved floating; 6.set mode to select control interface(gnd?i2c,vio?spi); 7. place c2 close to avdd pin. figure 8-4. RDA5807P fm tuner applicati on diagram (dcxo+mcu codec application) 8.4.1 bill of materials: component value description supplier u1 RDA5807P broadcast fm radio tuner rda u2 dcxo crystal oscillator 32.768khz <=50ppm j1 common 32 ? resistance headphone l3 1800r/100m common for lna input murata c4,c5 125f audio ac couple capacitors murata c2 24nf power supply bypass capacitor murata the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 13 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 9 package physical dimension figure 9-1 illustrates the package details for the RDA5807P. the package is lead-free and rohs-compliant. min nom max d 4.00 bsc e 4.00 bsc d2 2.00 2.15 2.25 e2 2.00 2.15 2.25 e 0.50 bsc l 0.30 0.40 0.50 b 0.18 0.25 0.30 a 0.80 0.90 1.00 a1 0.00 0.02 0.05 a3 0.20 ref figure 9-1 24-pin 4x4 quad flat no-lead (qfn) the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 14 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 10 pcb land pattern figure 10-1.classification reflow profile profile feature sn-pb eutectic assembly pb-free assembly average ramp-up rate (t smax to t p ) 3 o c/second max. 3 o c/second max. preheat -temperature min (t smin ) -temperature max (t smax ) -time (t smin to t smax ) 100 o c 100 o c 60-120 seconds 150 o c 200 o c 60-180 seconds time maintained above: -temperature (t l ) -time (t l ) 183 o c 60-150seconds 217 o c 60-150 seconds peak /classification temperature(t p ) see table-ii see table-iii time within 5 o c of actual peak temperature (t p ) 10-30 seconds 20-40 seconds ramp-down rate 6 o c/second max. 6 o c/seconds max. time 25 o c to peak temperature 6 minutes max. 8 minutes max. table-i classification reflow profiles the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 15 of 20 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 16 of 20 package thickness volume mm 3 <350 volume mm 3 350 2.5mm 240 + 0/-5 o c 225 + 0/-5 o c 2.5mm 225 + 0/-5 o c 225 + 0/-5 o c table ? ii snpb eutectic process ? package peak reflow temperatures package thickness volume mm 3 350 volume mm 3 350-2000 volume mm 3 2000 1.6mm 260 + 0 o c * 260 + 0 o c * 260 + 0 o c * 1.6mm ? 2.5mm 260 + 0 o c * 250 + 0 o c * 245 + 0 o c * 2.5mm 250 + 0 o c * 245 + 0 o c * 245 + 0 o c * * tolerance : the device manufacturer/supplier shall assure process compatibility up to and including the stated classification temperatur e(this mean peak reflow temperature + 0 o c. for example 260+ 0 o c ) at the rated msl level. table ? iii pb-free process ? package classification reflow temperatures note 1: all temperature refer topside of the package. measured on the package body surface. note 2: the profiling tolerance is + 0 o c, - x o c (based on machine variation capability)whatever is required to control the profile process but at no time will it exceed ? 5 o c. the producer assures process compatibility at the peak reflow profile temperatures defined in table ?iii. note 3: package volume excludes external term inals(balls, bumps, lands, leads) and/or non integral heat sinks. note 4: the maximum component temperature reached during reflow depends on package the thickness and volume. the use of convection reflow processes reduces the thermal gradients between packages. however, thermal gradients due to differences in thermal mass of smd package may sill exist. note 5: components intended for use in a ?lead-free? assembly process shall be evaluated using the ?lead free? classification temperat ures and profiles defined in table-i ii iii whether or not lead free. free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 17 of 20 rohs compliant the product does not contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (pbb) or polybrominated diphenyl ethers (pbde), an d are therefore consider ed rohs compliant. esd sensitivity integrated circuits are esd sensitive and can be damage d by static electricity. proper esd techniques should be used when handling these devices. free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 11 change list rev date author change description v1.0 2008-8-26 xiaoqi you original draft. 12 notes 1: ???????? the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 18 of 20 ?i2c ??? spi ??? ?i 2 c ??? mode sen sclk sdio sclk vio 7 8 9 mode sen sclk sdio sclk 7 8 9 sdio 10 sen sdio 10 free datasheet http://
rda microelectronics, inc. RDA5807P fm tuner v1.0 13 contact information rda microelectronics (shanghai), inc. suite 1108 block a, e-wing center, 113 zhichun road haidian district, beijing tel: 86-10-62635360 fax: 86-10-82612663 postal code: 100086 suite 302 building 2, 690 bibo road pudong district, shanghai tel: 86-21-50271108 fax: 86-21-50271099 postal code: 201203 copyright ? rda microelectronics inc. 2008. all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information contained herein is the exclus ive property of rda and shall not be distributed, reproduced, or disclosed in who le or in part without prior written permission of rda. page 19 of 20 free datasheet http://

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