TEA6848HL

New in car entertainment car radio tuner IC with precision adjacent channel suppression (NICE-PACS)


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The TEA6848HL is a single IC with car radio tuner for AM, FM and Weather Band (WB) intended for microcontroller tuning with the I²C-bus. It provides the following functions:

  • AM double conversion receiver for LW, MW and SW (31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and IF2 = 450 kHz
  • FM double conversion receiver with integrated image rejection for IF1 and for IF2 capable of selecting US FM, US weather, Europe FM, East Europe FM and Japan FM bands; fully integrated dynamic selectivity at 450 kHz FM IF2; FM demodulator with dynamic threshold extension; center frequency alignment of IF2 selectivity via the I²C-bus
  • The tuning system includes VCO, crystal oscillator and PLL synthesizer on one chip

Features and benefits

  • FM mixer 1 for conversion of FM RF (65 MHz to 108 MHz and US weather band) to IF of 10.7 MHz; the mixer provides inherent image rejection; for European and US FM band/WB (weather band) the mixer is driven with a ‘high’ injection Local Oscillator (LO); in Japan FM band and East Europe FM band the mixer is driven with a ‘low’ injection LO
  • AM mixer 1 for conversion of AM RF to AM IF1 of 10.7 MHz
  • LC tuner oscillator providing mixer frequencies for FM mixer and AM mixer 1
  • AM mixer 2 for conversion of AM IF1 to AM IF2 of 450 kHz
  • Crystal oscillator providing mixer frequencies for AM mixer 2 and FM mixer 2 and reference for synthesizer PLL, IF count, timing for Radio Data System (RDS) update and reference frequency for car audio signal processor ICs
  • Fast synthesizer PLL tuning system with local control for inaudible RDS updating
  • Timing function for RDS update algorithm and control signal output for car audio signal processor ICs (TEA688x, SAA77xx, TEF689x)
  • Digital alignment circuit for bus controlled matching of oscillator tuning voltage to FM antenna tank circuit tuning voltage
  • AGC PIN diode drive circuit for FM RF AGC; AGC detection at FM mixer input; the AGC PIN diode drive can be activated by the I²C-bus as a local function for search tuning; AGC threshold is a programmable and keyed function switchable via the I²C-bus
  • FM IF linear amplifier with high dynamic input range
  • FM mixer 2 for conversion of FM IF1 to FM IF2 of 450 kHz with inherent image rejection
  • Fully integrated dynamic selectivity and FM demodulator at IF2; improved sensitivity with dynamic threshold extension; center frequency of IF2 selectivity alignment via the I²C-bus
  • Level detector for AM and FM with temperature compensated output voltage; starting point and slope of level output is programmable via the I²C-bus
  • AM cascode AGC stage and RF PIN diode drive circuit; AGC threshold detection at AM mixer 1 and IF2 AGC input; threshold for detection at mixer 1 input is programmable via the I²C-bus
  • AM IF2 AGC and demodulator
  • AM AF output switchable to provide AM IF2 for AM stereo decoder
  • AM noise blanker with detection at IF1 and blanking at AM IF2
  • Software controlled flag output
  • Buffer output for weather band flag
  • Adjacent channel detector, modulation detector and frequency offset for instantaneous bandwidth control of the integrated filter
  • Flag and voltage output indicating the actual bandwidth
  • I²C-bus alignment of center frequency and gain variation as functions of bandwidth of the IF2 filter and center frequency of the offset detector
All information on this product information page is subject to the subsequent disclaimers:

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TEA6848HL/V3STEA6848HL/V3S,5189352 888 32518Volume productionSOT315-1
(LQFP80) 		Reel Dry Pack, SMD, 13"Standard Marking
TEA6848HL/V3STEA6848HL/V3S,5579352 888 32557Volume productionSOT315-1
(LQFP80) 		Tray Dry Pack, Bakeable, MultipleStandard Marking

The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TEA6848HL/V3/S5-9352 854 27557Withdrawn
Replacement product		SOT315-1
(LQFP80) 		Tray Dry Pack, Bakeable, MultipleStandard Marking

Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEA6848HL/V3/S5935285427557DN

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TEA6848HL/V3STEA6848HL/V3S,518TEA6848HL/V3SAlways Pb-free33
TEA6848HL/V3STEA6848HL/V3S,557TEA6848HL/V3SAlways Pb-free33

The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TEA6848HL/V3/S5-Not availableAlways Pb-free
Quality and reliability disclaimer

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Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEA6848HL/V3/S5935285427557DN

Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TEA6848HL/V3S9352 888 32518TEA6848HL/V3S,518      not available
TEA6848HL/V3S9352 888 32557TEA6848HL/V3S,557      not available

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