TDA9955HL

Triple 8-bit analog-to-digital video converter for HDTV


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The TDA9955HL is a triple 8-bit video converter interface.

The TDA9955HL converts an RGB analog signal into a RGB or YUV (YCBCR) digital signal or converts a YUV (YPBPR) analog signal into a YUV (YCBCR) or RGB digital signal with a sampling rate up to 170 MHz.

The TDA9955HL supports analog TV resolutions from 480i (720 x 480i at 60 Hz) to High-Definition TV (HDTV) (up to 1920 x 1080p at 60 Hz) and analog PC resolutions from VGA (640 x 480p at 60 Hz) to UXGA (1600 x 1200p at 60 Hz).

The YUV digital output signal can be 4 : 4 : 4 or 4 : 2 : 2 ITU-R BT.656 standard or semi-planar format following the ITU-R BT.601 standard.

All settings are controlled via the I²C-bus.

Features and benefits

  • Triple 8-bit Analog-to-Digital Converter (ADC)
  • Three independent analog video sources, up to 170 MHz selectable via the I²C-bus
  • Analog composite sync slicer and recognition integrated
  • Frame and field detection for interlaced video signal
  • Video analog voltage input from 0.45 V to 0.9 V (p-p) to produce a full-scale ADC input of 1.0 V (p-p)
  • Three clamps for programming a 8-bit clamping code from 0 to +191 in steps of 1 LSB for RGB and YUV signals
  • Three video amplifiers controlled via I²C-bus to reach the full-scale resolution
  • Amplifier bandwidth of 100 MHz
  • Low gain variation with temperature
  • I²C-bus controlled Phase-Locked Loop (PLL) to generate the ADCs, formatter and output clocks which can be locked into a line frequency from 15 kHz to 95 kHz
  • Integrated PLL divider
  • Programmable clock phase adjustment cells
  • Matrix and offsets available for conversion of RGB or YUV signal coming from analog video sources into YUV or RGB
  • Output format RGB 4 : 4 : 4,YUV 4 : 4 : 4,YUV 4 : 2 : 2 ITU-R BT.656 or YUV 4 : 2 : 2 semi-planar standard on output bus
  • Integrated downsampling-by-two with selectable filters on CB and CR channels in the 4 : 2 : 2 mode
  • IC controlled via the I²C-bus, 5 V tolerant and bit rate up to 400 kbit/s
  • TTL inputs 5 V tolerant
  • LV-TTL outputs
  • Power-down mode
  • 1.8 V and 3.3 V power supplies

Applications

  • Set Top Box (STB)
  • YUV or RGB high-speed video digitizer
  • Projector, plasma and LCD TV
  • Rear projection TV
  • High-end TV
All information on this product information page is subject to the subsequent disclaimers:
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Parametrics of this product

Type numberPackagePixel frequency [max](MHz)Color conversion matrixPackage nameProduct statusNr of bit per pixel(bit)Sync frequency recognition Output formater
TDA9955HLSOT407-1
170yesLQFP100Production3 x 8-bityesRGB 4:4:4; YUV 4:4:4; ITU-R BT656; YUV 4:2:2 SP

Similar products

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TDA9955HL/17/C1TDA9955HL/17/C1,519352 815 45518Volume productionSOT407-1Reel Dry Pack, SMD, 13"Standard Marking
TDA9955HL/17/C1TDA9955HL/17/C1:559352 815 45551Volume productionSOT407-1Tray Dry Pack, Bakeable, SingleStandard Marking
TDA9955HL/17/C1TDA9955HL/17/C1,559352 815 45557Volume productionSOT407-1Tray Dry Pack, Bakeable, MultipleStandard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TDA9955HL/17/C1TDA9955HL/17/C1,51TDA9955HL/17/C1Always Pb-free22
TDA9955HL/17/C1TDA9955HL/17/C1:55TDA9955HL/17/C1Always Pb-free22
TDA9955HL/17/C1TDA9955HL/17/C1,55TDA9955HL/17/C1Always Pb-free22
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Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TDA9955HL/17/C19352 815 45518TDA9955HL/17/C1,51JAPANCHIP ONE STOPno05/14/2012Buy onlinenot available
TDA9955HL/17/C19352 815 45551TDA9955HL/17/C1:55JAPANCHIP ONE STOPno05/14/2012Buy online 
TDA9955HL/17/C19352 815 45557TDA9955HL/17/C1,55NAAVNET EXPRESS1275/24/2012Buy onlinenot available
   NAARROW ELECTRONICS325/24/2012Buy online 
   JAPANCHIP ONE STOPno05/14/2012Buy online 

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