TDA20142

8PSK satellite tuner with integrated high-sensitivity LNA and loop-through


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TDA20142 is a general-purpose 8PSK satellite tuner that addresses the stringent requirements of both operator and Free To Air (FTA) applications. It includes an integrated high-sensitivity Low Noise Amplifier (LNA) and a large dynamic range. The device also includes a built-in RF Loop-Through (LPT).

To address FTA applications, the TDA20142’s built-in high-sensitivity LNA provides exceptional Noise Figure (NF) without the need for any external amplification. However, unlike many competitive FTA tuners, the TDA20142’s unique architecture allows it to achieve this NF for low-power signals without sacrificing linearity (IIP3, IIP2) when total power is high. This characteristic makes the TDA20142 ideal for operator applications. The LNA also includes multiple settings to allow power reduction when higher linearity is not required.

To achieve 8PSK compliance, the tuner employs a fractional PLL that provides excellent phase noise while enabling fine step size without adversely affecting lock time. Additional features include a built-in auto-tuning function, a single-ended RF input and a buffered version of the crystal clock with optional dividers that is made available to drive companion ICs.

The device’s flexible LPT includes a buffer and an attenuator with four settings. This allows flexibility when connected in cascade with a second satellite tuner. Good reverse isolation assures that interaction between the two tuners connected via the LPT path does not affect the desired signal.

Features and benefits

  • Integrated high-sensitivity LNA
  • Excellent noise figure
  • Very low phase noise
  • Excellent linearity
  • Wide dynamic range
  • LPT output
  • Integrated RF power detector
  • Built-in auto tuning machine eliminates the need for software calibration
  • Buffered clock output
  • Supports 8PSK and QPSK modulation formats
  • Supported symbol rates: 1 Msps to 60 Msps
  • RF input frequency: 950 MHz to 2150 MHz
  • Single 3.3 V power supply
  • Lead-free 5 mm  5 mm 28-pin QFN package

Applications

  • Operator-based 8PSK Set-Top Boxes (STBs)
  • FTA STBs
  • Satellite enabled PC cards
  • Televisions with integrated satellite receivers
All information on this product information page is subject to the subsequent disclaimers:
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Parametrics of this product

Type numberPackagePackage reference codePAL, SECAM, NTSC
TDA20142SOT993-3
(HVQFN28)		HVQFN28no

Similar products

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TDA20142/2TDA20142/2,5579352 943 41557Volume productionSOT993-3
(HVQFN28) 		Tray Dry Pack, Bakeable, MultipleStandard Marking
TDA20142/2TDA20142/2,5189352 943 41518Volume productionSOT993-3
(HVQFN28) 		Reel Dry Pack, SMD, 13"Standard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TDA20142/2TDA20142/2,557TDA20142/2Always Pb-free33
TDA20142/2TDA20142/2,518TDA20142/2Always Pb-free33
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Documentation for this product

TypeFormatTitleDate
Line cardpdfApplication guide: Flat-panel TV sets (v.2.0)2012-03-13

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TDA20142/29352 943 41557TDA20142/2,557ASIASACL - Hong Kong/Chinayes245005/01/2012Buy online 
TDA20142/29352 943 41518TDA20142/2,518      not available

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