TDA8295_C2

Digital global standard low IF demodulator for analog TV and FM radio


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Product description

The TDA8295 is an alignment-free digital multistandard vision and sound low IF signal PLL demodulator for positive and negative video modulation including AM and FM mono sound processing. It can be used in all countries worldwide for M/N, B/G/H, I, D/K, L and L-accent standard. CVBS and SSIF/mono audio is provided via two DACs. FM radio preprocessing is included for simple interfacing with demodulator/stereo decoder backends.

The IC is especially suited for the application with the NXP Silicon Tuner TDA8275A or TDA1827x.

All the processing is done in the digital domain.

The chip has an easy programming mode to make the I2C-bus protocol very simple. In principle, only one bit sets the proper standard with recommended content. However, if this is not suitable, free programming is always possible.

Note: The recommended ADC programming deviates from default setting and needs to be set explicitly by I2C-bus protocol after hardware reset

Features

  • Digital IF demodulation for all analog TV standards worldwide (M/N, B/G/H, D/K, I, L and L-accent standard)
  • Multistandard true synchronous demodulation with active carrier regeneration
  • Alignment-free
  • 16 MHz typical reference frequency input (from low IF tuner) or operating as crystal oscillator
  • Internal PLL synthesizer which allows the use of a low-cost crystal (typically 16 MHz)
  • Especially suited for the NXP Silicon Tuner TDA8275A or TDA1827x
  • No SAW filter needed
  • Low application effort and external component count in combination with the TDA8275A or TDA1827x
  • Pin compatible with predecessor TDA8290
  • Simple upgrade of TDA8290 possible
  • 12-bit IF ADC on chip running with 54 MHz or 27 MHz
  • Two 10-bit DACs on chip for CVBS and SSIF or audio
  • Easy programming for I2C-bus
  • High flexibility due to various I2C-bus programming registers
  • I2C-bus interface and I2C-bus feed-through for tuner programming
  • Four I2C-bus addresses selectable via two external pins
  • Gated IF AGC acting on black level by using H/V PLL or peak IF AGC (I2C-bus selectable)
  • Internal digital logarithmic IF AGC amplifier with up to 48 dB gain and 68 dB control range
  • Peak search tuner IF AGC for optimal adaptive drive of the IF ADC
  • Switchable IF PLL and IF AGC loop bandwidths
  • Precise AFC and lock detector
  • Accurate group delay equalization for all standards
  • Very robust IF demodulator coping with adverse field conditions
  • Wide PLL pull-in range up to 1660 kHz (I2C-bus selectable)
  • CVBS and SSIF or audio output with simple postfilter (capacitor only)
  • CVBS gain levelling stage to provide nearly constant signal amplitude during overmodulation
  • Video equalizer with eight settings
  • Nyquist filter in video baseband
  • Excellent video S/N (typically 62 dB weighted)
  • High selectivity video low-pass filter for all standards
  • Low video into sound crosstalk
  • Sound performance comparable to QSS single reference concepts
  • AM/FM mono sound demodulator
  • Switchable de-emphasis
  • Excellent FM sound
  • Good AM sound
  • High FM Deviation mode for China
  • Preprocessing of FM radio (mono and stereo) with highly selective digital band-pass filter
  • No ceramic filter or external components needed for FM radio
  • FM radio available in mono
  • Automatic or forced mute for mono sound
  • Automatic or forced blank for video
  • Mostly digital FIR filter implementation (NSC notches and video low-pass filters)
  • Three GPIO pins
  • Power-On Reset (POR) block for reliable power-up behavior
  • Low total power dissipation (typically 465 mW)
  • Standby mode (typically 7 mW)
  • 40-pin HVQFN package
  • CMOS technology (0.12 m 1.2 V and 3.3 V)

Applications

  • PC TV applications
  • DVD recorders
  • TV applications
All information on this product information page is subject to the subsequent disclaimers:
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Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
TDA8295HN/C2/S1TDA8295HN/C2/S1,519352 913 78518Volume productionSOT618-1
(HVQFN40) 		Reel Dry Pack, SMD, 13"Standard Marking
TDA8295HN/C2TDA8295HN/C2,5519352 832 62551Volume productionSOT618-1
(HVQFN40) 		Tray Dry Pack, Bakeable, SingleStandard Marking
TDA8295HN/C2TDA8295HN/C2,5579352 832 62557Volume productionSOT618-1
(HVQFN40) 		Tray Dry Pack, Bakeable, MultipleStandard Marking
TDA8295HN/C2TDA8295HN/C2,5189352 832 62518Volume productionSOT618-1
(HVQFN40) 		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 statusPackagePackingMarkingECCN
TDA8295HN/C1TDA8295HN/C1,5189352 798 28518Withdrawn
Replacement product		SOT618-1
(HVQFN40) 		Reel Dry Pack, SMD, 13"Standard Marking
TDA8295HN/C1TDA8295HN/C1,5519352 798 28551Withdrawn
Replacement product		SOT618-1
(HVQFN40) 		Tray Dry Pack, Bakeable, SingleStandard Marking
TDA8295HN/C1TDA8295HN/C1,5579352 798 28557Withdrawn
Replacement product		SOT618-1
(HVQFN40) 		Tray Dry Pack, Bakeable, MultipleStandard Marking

Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TDA8295HN/C193527982851831-mrt-1030-jun-10TDA8295HN/C2DN 65
  • Sole source product
  • Limited availability (check with your usual sales contact)
Limited Availability. Manufacturing condition change.
TDA8295HN/C193527982855131-mrt-1030-jun-10TDA8295HN/C2DN 65
  • Sole source product
  • Limited availability (check with your usual sales contact)
Limited Availability. Manufacturing condition change.
TDA8295HN/C193527982855731-mrt-1030-jun-10TDA8295HN/C2DN 65
  • Sole source product
  • Limited availability (check with your usual sales contact)
Limited Availability. Manufacturing condition change.

Parametrics of this product

Type numberPackageIF interfaceGroup delay equalizerVideo gain equalizerPower supply [Typ](V)Total consuption [typ] (mW)Silicon tuner compatibilityPackage name
TDA8295HNSOT618-1
(HVQFN40)		Low IFnono1.2/3.3575yesHVQFN40

Similar products

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TDA8295HN/C2/S1TDA8295HN/C2/S1,51TDA8295HN/C2/S1Always Pb-free33
TDA8295HN/C2TDA8295HN/C2,551TDA8295HN/C2Always Pb-free33
TDA8295HN/C2TDA8295HN/C2,557TDA8295HN/C2Always Pb-free33
TDA8295HN/C2TDA8295HN/C2,518TDA8295HN/C2Always 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
TDA8295HN/C1TDA8295HN/C1,518Always Pb-free13
TDA8295HN/C1TDA8295HN/C1,551Always Pb-free13
TDA8295HN/C1TDA8295HN/C1,557Always Pb-free13
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
TDA8295HN/C193527982851831-mrt-1030-jun-10TDA8295HN/C2DN 65
  • Sole source product
  • Limited availability (check with your usual sales contact)
Limited Availability. Manufacturing condition change.
TDA8295HN/C193527982855131-mrt-1030-jun-10TDA8295HN/C2DN 65
  • Sole source product
  • Limited availability (check with your usual sales contact)
Limited Availability. Manufacturing condition change.
TDA8295HN/C193527982855731-mrt-1030-jun-10TDA8295HN/C2DN 65
  • Sole source product
  • Limited availability (check with your usual sales contact)
Limited Availability. Manufacturing condition change.

Documentation for this product

TypeFormatTitleDate
Data sheetpdfDigital global standard low IF demodulator for analog TV and FM radio (v.2.0)2011-07-21

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TDA8295HN/C2/S19352 913 78518TDA8295HN/C2/S1,51      not available
TDA8295HN/C29352 832 62551TDA8295HN/C2,551      not available
TDA8295HN/C29352 832 62557TDA8295HN/C2,557      not available
TDA8295HN/C29352 832 62518TDA8295HN/C2,518      not available

Sample

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