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TEA6849H Datasheet(PDF) 5 Page - NXP Semiconductors |
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TEA6849H Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 65 page This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... DAA RDS UPDATE CRYSTAL OSCILLATOR SOFT MUTE CONTROL POWER SUPPLY VCO AM MIXER 1 AM MIXER 2 AM AGC 90 ° FM I/Q MIXER 1 FM AGC TUNING SYSTEM AM NOISE DETECTOR PEAK/ AVERAGE BLANK PULSE LEVEL DAA ÷10/ ÷20 ÷1/ ÷2/ ÷3 90 ° IF COUNT TEA6849H AM DEMOD FM MIXER 2 ÷2 MUX IF FILTER FM DEMOD STABI BUFFER BANDWIDTH CONTROL x1/ x15 AMPLIFIER MPXOUT 19 18 15 14 13 12 11 10 9 87 6 54 32 1 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DAAIN DAATD DAAOUT TKEYEDAGC TFMAGC IFMAGC WBFLAG FMMIXIN2 FMMIXIN1 Vref(MIX) i.c. RFGND IAMAGC VAMCAS VAMCASFB AMMIX1IN AMMIX1DEC SWFLAG VDDA2 MIX1OUT2 MIX1OUT1 FMLIMDCFDB1 AMIF2DEC AMNBHOLD IFAMPOUT IFCDAATEST FMMIX2DEC COFFSET FMMIX2IN IF1GND AMIF2IN VDDA1 IFAMPIN IFAMPDEC IF2FILQ IF2FILI FMLIMDCFDB2 IREFFMIF2 THFAMAGC TAFAMAGC 41 42 43 44 45 46 47 48 49 50 52 51 53 54 55 56 57 58 59 60 MODDET VDDA5 FMMPX RDSMPX AMAFIF2 TRDSMUTE AFHOLD AFSAMPLE MPXDCFDB VDDA4 OSCTNK OSCFDB VCOGND DGND VDDD FREF VDDA3 CPOUT Vtune FMMUTE 61 VDDA6 IFBWFLAG SDA SCL VIFBW IF2GND CINT MODETOUT TACD Vlevel(AMFM) XTAL1 XTALGND XTAL2 Vlevel(ACD) ACDTHRES IREF AMMIX2OUT1 AMMIX2OUT2 CAGC Vref(lim) 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 AM LEVEL LEVEL WB LEVEL 20.5 MHz FM AM WB/JAPAN/OIRT 21 17 16 ANTENNA AM STEREO MUTE RDS SOFT MUTE I 2C-bus I 2C-bus I 2C-bus I 2C-bus I 2C-bus I 2C-BUS I 2C- bus MDB205 I 2C-bus I 2C-bus × × × × Fig.1 Block diagram. |
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