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TEA6848H

Selection guide

Datasheet

TEA6848H
(Product Specification)
12-Nov-04, 63 pages, 400 kB

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TEA6848H - New In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS)

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

General description

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

  • 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.

Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
TEA6848H/V1STEA6848H/V1S,5189352 895 74518Volume productionSOT315-1
(LQFP80)
Reel Dry Pack, SMD, 13"Standard Marking
TEA6848H/V1STEA6848H/V1S,5579352 895 74557Volume productionSOT315-1
(LQFP80)
Tray Dry Pack, Bakeable, MultipleStandard Marking
TEA6848H/V3-9352 747 63518DevelopmentSOT315Reel Dry Pack, SMD, 13"Standard Marking
TEA6848H/V3-9352 747 63557DevelopmentSOT315Tray Dry Pack, Bakeable, MultipleStandard Marking

The variants in the table below are discontinued. See the table Discontinued information for more information.

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
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/V1/S1TEA6848H/V1/S1,5189352 723 63518Discontinued
Replacement product
SOT315-1
(LQFP80)
Reel Dry Pack, SMD, 13"Standard Marking

Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
TEA6848H/V1STEA6848H/V1S,518TEA6848H_V1S
Always Pb-free
TEA6848H/V1STEA6848H/V1S,557TEA6848H_V1S
Always Pb-free
TEA6848H/V3-Not available
TEA6848H/V3-Not available

The variants in the table below are discontinued. See the table Discontinued information for more information.

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
TEA6848H/V1TEA6848H/V1,518TEA6848H_V1
week 9, 2005
TEA6848H/V1TEA6848H/V1,557TEA6848H_V1
week 9, 2005
TEA6848H/V1/S1TEA6848H/V1/S1,518TEA6848H_V1_S1
Always Pb-free

Quality and reliability disclaimer

Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TEA6848H/V1S9352 895 74518  TEA6848H/V1S,518        Order samples
TEA6848H/V1S9352 895 74557  TEA6848H/V1S,557        Order samples
TEA6848H/V39352 747 63518  -        not available
TEA6848H/V39352 747 63557  -        not available

Discontinued information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEA6848H/V193526759951831-mrt-1030-jun-10$product.prunedProduct.eplacementPartDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V193526759955731-mrt-1030-jun-10$product.prunedProduct.eplacementPartDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEA6848H/V1/S193527236351831-mrt-1030-jun-10$product.prunedProduct.eplacementPartDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.

Block diagrams/pinning