AS6001 / AS6002. FM Stereo Transmitter. Accel Semiconductor GENERAL DESCRIPTION FEATURES ORDERING INFORMATION APPLICATION

Transcription

1 AS / AS FM Stereo Transmitter FEATURES GENERA DESCRTON ighly integrated FM stereo transmitter atentpending architecture ow power operation, extremely suitable for portable devices Ultra low standby current in ua with enable DO embedded for easy power supply design wire digital control interface for flexible channel programming and control (AS) wire parallel control interface for easy channel programming and control (AS) Mz with.mz step based continuous tuning for China, Europe and North America (AS)..Mz and..mz with.mz step based continuous tuning (AS) ess off chip components Small footprint SSO and QFN package The AS/AS is an innovative highly integrated FM stereo transmitter. t is the first generation of FM transmitter C designed using s patentpending RF technology. t consists of a stereo encoder and FM transmitter. The stereo encoder is based on signal processing to encode analog stereo audio input signal and generate a composite FM signal with MAN, SUB and pilot signal from a.mz oscillator. The FM transmitter uses direct frequency synthesis to radiate FM wave to the air by modulating the carrier signal with the composite signal. The AS/AS is designed for portable application as well as general application. The. operation voltage and as low as ma quiescent current make it extremely suitable for portable devices such as M and mobile phone. t also embeds DO power regulator to make power supply design easy and flexible. The AS has a wire digital control interface for external controller easy and flexible to program and control the transmitting channel. The transmitting channel is from to Mz with.mz step continuous tuning. So it is suitable for China, Europe and North America. ACATON ORDERNG NFORMATON M layer Cellular andsets Wireless Microphone ersonal Media layer ersonal Computer Game Machine Car Audio ART ASBCS ASBCQ ASBCS ASBCQ ACKAGEN SSO QFN SSO QFN AS/AS Datasheet (reliminary ersion.) age of

2 ABSOUTE MAXMUM RATNGS (T= ) arameter supply voltage Data input voltage output voltage ower dissipation Storage temperature Symbol ddh ind OUT d Tstg imits.~ddh+..~ddh+. ~+ Unit mw o C Conditions Table Absolute Maximum Ratings. in of ASBCS and ASBCS and in of ASBCQ and ASBCQ.. in,,, of ASBCS and in,,, of ASBCQ, in,,,, of ASBCS and in,,,, of ASBCQ.. in of ASBCS and ASBCS, in of ASBCQ and ASBCQ. RECOMMENDED OERATNG CONDTONS arameter Operating supply voltage Operating temperature Audio input level Audio input frequency band Transmission frequency Control terminal level input voltage Control terminal level input voltage Symbol Min ddh. Typ Max Unit Conditions Topr in_a Fin_A + K o C db z Frx M M z.ddh ddh GND.ddh Table Recommended operating conditions.... in of ASBCS and ASBCS and in of ASBCQ and ASBCQ. in, of ASBCS and ASBCS, in, of ASBCQ and ASBCQ. in of ASBCS and ASBCS, in of ASBCQ and ASBCQ. in,,, of ASBCS and in,,, of ASBCQ, in,,,, of ASBCS and in,,,, of ASBCQ. AS/AS Datasheet (reliminary ersion.) age of

3 FUNCTON BOCK DAGRAM & N ASSGNMENT EN SE X CK X NC C_OUT RC REF F F DO C OSC MX F DATA SE DATA EN NC C CK CONTROER CO C_OUT DD DD RC Figure AS Block Diagram and in Assignment of SSO Figure AS in Assignment of QFN N DESCRTON SSO N Number QFN N Number N Name /O RC DD C_OUT X SE G O /O O O N Description ower ground for C Right channel input ower supply for digital ower supply for RF ower supply for C ower ground for RF charge pump output Modulation signal output RF signal output CO off chip tank connection Crystal in Reset input signal Crystal out reemphasis time constant selection signal EN wire enable input CK wire clock input DATA wire data input NC N No connect C eft channel input C power down Table AS in description of SSO and QFN AS/AS Datasheet (reliminary ersion.) age of

4 X SE SE DO D F D D F D REF D D MX F C OSC D CONTROER FUNCTON BOCK DAGRAM & N ASSGNMENT X D C_OUT RC C CO C_OUT DD DD RC Figure AS Block Diagram and in Assignment of SSO Figure AS in Assignment of QFN N DESCRTON SSO N Number QFN N Number N Name /O RC DD C_OUT X SE G O /O O O N Description ower ground for C Right channel input ower supply for digital ower supply for RF ower supply for C ower ground for RF charge pump output Modulation signal output RF signal output CO off chip tank connection Crystal in Reset input signal Crystal out reemphasis time constant selection signal D frequency selection input D frequency selection input D frequency selection input D frequency selection input C eft channel input C power down Table AS in description of SSO and QFN AS/AS Datasheet (reliminary ersion.) age of

5 EECTRCA CARACTEC (T= OC DD=.) arameter Quiescent current Standby current Total harmonic distortion Channel balance Symbol Q Stby TD Min Typ Max.. Unit ma ua % C.B. db Channel separation Sep db db +. nput voltage amplitude limit nput output gain Gv + db ilot modulation rate Mp % Sub carrier rejection ratio reemphasis time constant F cut off frequency Transmission output level SCR db us fc(f) tx / K z dbu ddd dd_rf.... ua ua level input current level input current ositive power supply ositive RF power supply Tpre.. Conditions = in=db +R Freq=z in=db +R Freq=z in=db +R Freq=z C and RC in=db +R Freq=z in=db +R, Freq=z in=db +R Freq=z in=db +R Freq=z C and RC Frx=Mz, Ω loading On chip regulated On chip regulated Table Electrical characteristic AS/AS Datasheet (reliminary ersion.) age of

6 OREATON wire nterface (AS) T>nS T T T EN CK DATA D D D D internal data DA D D D D D D D D D D D MO D D T NO T Figure wire nterface Timing Diagram No. () Control unit/data ROGRAM COUNTER D~D Contents t is the data which sets the program counter number of dividing. This data can set a transmission frequency. t s a binary value. t sets D with MSB and D with SB Example: n case of.mz oscillation.mz/kz(freq)= E(EX) alid values are between (EX) to (EX) D D D D D D D D D D D SB () MONO () D,D () T,T MSB t changes stereo and mono operation : stereo operation : mono operation (+R) t controls the charge pump output voltage D D charge pump output usual operation force low force high high impedance T and T are for test always set T always set T Table Explanation of Serial Data* *Notes: There is no default value of serial data. AS/AS Datasheet (reliminary ersion.) age of

7 wire arallel nterface (AS) D control data Frequency D D D.Mz.Mz.Mz.Mz.Mz.Mz.Mz stops. terminal supports high impedance.mz.mz.mz.mz.mz.mz.mz stops. terminal supports high impedance Table Explanation of arallel Data SE in The SE pin is preemphasis time constant selection. : us : us in The pin is C reset input. : reset disable : reset enable in The pin controls the C power on or off. : power on : power off AS/AS Datasheet (reliminary ersion.) age of

8 ACATON CRCUTS C RC AGND C uf C uf DD C uf C uf RC C C uf NC DD CK R R.K.K C uf C pf C pf C C.uF uf C_OUT X Y.Mz C pf C pf C uf C nf Option BF R K C uf n R K KE R K SE C.uF D R K EN CON DATA u R.K AGND Figure AS Application Circuit C RC AGND C uf C uf R K* DD DD C uf C uf C uf RC C D D DD D R R.K.K C uf C pf C pf C C.uF uf n C uf R K KE R K SE C.uF D R K D S C_OUT X Y.Mz C pf C pf C uf C nf Option BF R K u R.K AGND Figure AS Application Circuit AS/AS Datasheet (reliminary ersion.) age of

9 ACKAGE DMENSONS SSO Millmeter DM. MN. TY MAX. A. A.. A.. b.. c.. D.. E.. E.. e.bsc.. θ º º AS/AS Datasheet (reliminary ersion.) age of

10 QFN (xmm) mm. DM. MN. TY MAX.... A.. A.. A. A b... D... D... E... E... e ddd. AS/AS Datasheet (reliminary ersion.) age of

11 CONTACT NFORMATON Corp. F, Main Building, Chun Xiao Road Shanghai,.R. China Tel: + () Fax: + () Zip: sales@accelsemi.com nternet: AS/AS Datasheet (reliminary ersion.) age of

12 DOCUMENT STATUS The status of this datasheet is preliminary information. All values specified in this datasheet are the target values of the design of Corp. in development. All detailed specifications including pinouts and electrical specifications are subjects to be changed by Corp. without notice. TRADEMARKS, ATENTS AND CENSES, ASC are trademarks of Corp. AS/AS Datasheet (reliminary ersion.) age of