TEA6848H

New In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS)


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The TEA6848H 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; centre 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 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; centre 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 centre frequency and gain variation as functions of bandwidth of the IF2 filter and centre frequency of the offset detector.
All information on this product information page is subject to the subsequent disclaimers:

Show functional diagram

Block diagram: TEA6848H
Block diagram: TEA6848H

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TEA6848H/V39352 747 63518DevelopmentSOT315-1
(LQFP80) 		Reel Dry Pack, SMD, 13"Standard Marking
TEA6848H/V39352 747 63557DevelopmentSOT315-1
(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
TEA6848H/V1/S1TEA6848H/V1/S1,5189352 723 63518Discontinued
Replacement product		SOT315-1
(LQFP80) 		Reel Dry Pack, SMD, 13"Standard Marking
TEA6848H/V1TEA6848H/V1,5189352 675 99518Discontinued
Replacement product		SOT315-1
(LQFP80) 		Reel Dry Pack, SMD, 13"Standard Marking
TEA6848H/V1TEA6848H/V1,5579352 675 99557Discontinued
Replacement product		SOT315-1
(LQFP80) 		Tray Dry Pack, Bakeable, MultipleStandard Marking
TEA6848H/V1STEA6848H/V1S,5189352 895 74518Discontinued
Replacement product		SOT315-1
(LQFP80) 		Reel Dry Pack, SMD, 13"Standard Marking
TEA6848H/V1STEA6848H/V1S,5579352 895 74557Discontinued
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
TEA6848H/V1/S193527236351831-mrt-1030-jun-10TEA6848H/V1S/S1DN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V193526759951831-mrt-1030-jun-10TEA6848H/V1SDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V193526759955731-mrt-1030-jun-10TEA6848H/V1SDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V1S93528957451831-Mar-1230-Jun-12TEA6848HL/V3SDN 201106016DNU01Full WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.
TEA6848H/V1S93528957455731-Mar-1230-Jun-12TEA6848HL/V3SDN 201106016DNU01Full WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TEA6848H/V3Not available
TEA6848H/V3Not available

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
TEA6848H/V1/S1TEA6848H/V1/S1,518TEA6848H/V1/S1Always Pb-free33
TEA6848H/V1TEA6848H/V1,518TEA6848H/V1week 9, 200533
TEA6848H/V1TEA6848H/V1,557TEA6848H/V1week 9, 200533
TEA6848H/V1STEA6848H/V1S,518TEA6848H/V1SAlways Pb-free33
TEA6848H/V1STEA6848H/V1S,557TEA6848H/V1SAlways Pb-free33
Quality and reliability disclaimer

Quality and reliability disclaimer

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Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEA6848H/V1/S193527236351831-mrt-1030-jun-10TEA6848H/V1S/S1DN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V193526759951831-mrt-1030-jun-10TEA6848H/V1SDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V193526759955731-mrt-1030-jun-10TEA6848H/V1SDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V1S93528957451831-Mar-1230-Jun-12TEA6848HL/V3SDN 201106016DNU01Full WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.
TEA6848H/V1S93528957455731-Mar-1230-Jun-12TEA6848HL/V3SDN 201106016DNU01Full WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.

Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TEA6848H/V39352 747 63518      not available
TEA6848H/V39352 747 63557      not available

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