TEF6721HL

Car radio tuner front-end for digital IF


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The TEF6721HL is a single chip car radio tuner for AM, FM standard, FM In-Band On-Channel Digital Audio Broadcast (IBOC DAB) and weather band providing combined AM and FM gain controlled differential Intermediate Frequency (IF) output for the SAF7730H including the following functions:

  • AM up-conversion tuner to an IF frequency of 10.7 MHz for Long Wave (LW)/Medium Wave (MW)/Short Wave (SW) (31 m, 41 m and 49 m bands)
  • FM single conversion tuner to an IF frequency of 10.7 MHz with integrated image rejection for US FM, Europe FM, Japan FM, East Europe FM and weather band reception; all bands can be selected using high side or low side Local Oscillator (LO) injection
  • Tuning system includes Voltage-Controlled Oscillator (VCO), crystal oscillator and Phase-Locked Loop (PLL) synthesizer on one chip.

Features and benefits

  • FM mixer for conversion of FM Radio Frequency (RF) (64 MHz to 108 MHz and US weather band) to an IF of 10.7 MHz; the mixer provides inherent image rejection and can be switched from low injection to high injection Local Oscillator (LO) via the I²C-bus; two different mixer conversion gains can be selected via the I²C-bus
  • Automatic Gain Control (AGC) PIN diode drive circuit for FM RF AGC; AGC detection at FM mixer input and IF AGC amplifier input; AGC threshold for detection at FM mixer input is a programmable and keyed function switchable via the I²C-bus; the AGC PIN diode drive can be activated via the I²C-bus as a local function for search tuning; in AM mode the AGC PIN diode drive can be activated via the I²C-bus if required
  • Digital alignment circuit for bus controlled matching of oscillator tuning voltage to FM antenna tank circuit tuning voltage
  • Buffer output for weather band flag
  • Combined AM and FM IF AGC amplifier with high dynamic input range; one of the four gain settings is selected automatically via two control signals from IF Digital Signal Processor (DSP); combined differential AM and FM IF output signal to analog-to-digital converter of IF DSP
  • AM mixer for conversion of AM RF to AM IF 10.7 MHz
  • AM RF PIN diode drive circuit and RF Junction Field Effect Transistor (JFET) conductance control by AGC cascode drive circuit; AGC threshold detection at AM mixer and IF AGC input; threshold for detection at AM mixer is programmable via the I²C-bus
  • AM and FM RF AGC monitor output intended for gain control of active antennas
  • Inductor Capacitor (LC) tuner oscillator providing mixer frequencies for FM and AM mixers
  • Crystal oscillator providing reference frequencies for synthesizer PLL and timing for Alternative Frequency (AF) updating
  • Optional crystal oscillator frequency pulling possibility via I²C-bus
  • Fast synthesizer PLL tuning system with local control for inaudible AF updating
  • Timing function for AF updating algorithm and control signal output for interfacing with IF DSP
  • Three hardware programmable I2C-bus addresses; pin BUSENABLE; two software controlled flag outputs
  • Several test modes for fast Integrated Circuit (IC) tests.
All information on this product information page is subject to the subsequent disclaimers:

Show functional diagram

Block diagram: TEF6721HL
Block diagram: TEF6721HL

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TEF6721HL/V1STEF6721HL/V1S,5579352 888 31557Volume productionSOT314-2
(LQFP64)
Tray Dry Pack, Bakeable, MultipleStandard Marking
TEF6721HL/V1STEF6721HL/V1S,5189352 888 31518Volume productionSOT314-2
(LQFP64)
Reel Dry Pack, SMD, 13"Standard 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
TEF6721HL/V1TTEF6721HL/V1T,5579352 897 05557Discontinued
Replacement product
SOT314-2
(LQFP64)
Tray Dry Pack, Bakeable, MultipleStandard Marking
TEF6721HL/V1TTEF6721HL/V1T,5189352 897 05518Discontinued
Replacement product
SOT314-2
(LQFP64)
Reel Dry Pack, SMD, 13"Standard Marking
TEF6721HL/V1TEF6721HL/V1,5189352 719 28518Discontinued
Replacement product
SOT314-2
(LQFP64)
Reel Dry Pack, SMD, 13"Standard Marking
TEF6721HL/V1TEF6721HL/V1,5579352 719 28557Withdrawn
Replacement product
SOT314-2
(LQFP64)
Tray Dry Pack, Bakeable, MultipleStandard Marking
TEF6721HL/V1KTTEF6721HL/V1KT,5189352 897 07518Discontinued
Replacement product
SOT314-2
(LQFP64)
Reel Dry Pack, SMD, 13"Standard Marking

Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEF6721HL/V1T93528970555731-Mar-1230-Jun-12TEF6721HL/V1SDN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.
TEF6721HL/V1T93528970551831-Mar-1230-Jun-12TEF6721HL/V1SDN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.
TEF6721HL/V193527192851831-mrt-1030-jun-10TEF6721HL/V1TDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEF6721HL/V193527192855731-mrt-1030-jun-10TEF6721HL/V1TDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEF6721HL/V1KT93528970751831-Mar-1230-Jun-12TEF6721HL/V1SDN 201106016DNU01Variant/Package 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
TEF6721HL/V1STEF6721HL/V1S,557TEF6721HL/V1SAlways Pb-free33
TEF6721HL/V1STEF6721HL/V1S,518TEF6721HL/V1SAlways 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
TEF6721HL/V1TTEF6721HL/V1T,557TEF6721HL/V1TAlways Pb-free33
TEF6721HL/V1TTEF6721HL/V1T,518TEF6721HL/V1TAlways Pb-free33
TEF6721HL/V1TEF6721HL/V1,518TEF6721HL/V1Always Pb-free33
TEF6721HL/V1TEF6721HL/V1,557TEF6721HL/V1Always Pb-free33
TEF6721HL/V1KTTEF6721HL/V1KT,518TEF6721HL/V1KTAlways Pb-free33
Quality and reliability disclaimer

Quality and reliability disclaimer

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NXP Semiconductors is providing this data for your convenience only. Please note however that NO WARRANTY, REPRESENTATION, GUARANTEE OR LEGALLY BINDING PRODUCT DESCRIPTION is provided by publishing this informational data, nor does NXP Semiconductors acknowledge or accept any liability related thereto. The documentation and data on NXP Semiconductors products can be found in the data sheets as officially published by NXP Semiconductors. For all purchase of products from NXP Semiconductors the NXP Semiconductors' General Terms and Conditions of Commercial Sale will apply.

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Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEF6721HL/V1T93528970555731-Mar-1230-Jun-12TEF6721HL/V1SDN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.
TEF6721HL/V1T93528970551831-Mar-1230-Jun-12TEF6721HL/V1SDN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.
TEF6721HL/V193527192851831-mrt-1030-jun-10TEF6721HL/V1TDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEF6721HL/V193527192855731-mrt-1030-jun-10TEF6721HL/V1TDN 64
  • Sole source product
  • Standard availability
ASSEMBLY APC Closure. Please refer to APCN 200905008A. Replacement type with new assembly location only.
TEF6721HL/V1KT93528970751831-Mar-1230-Jun-12TEF6721HL/V1SDN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Diffusion fab closure, pls refer to PCN#200912010F. Change of diffusion location only.

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TEF6721HL/V1S9352 888 31557TEF6721HL/V1S,557      not available
TEF6721HL/V1S9352 888 31518TEF6721HL/V1S,518      not available

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