TW2828: HD/SD DVR Video Port Expander

TW2828 is a display and recording MUX chip with HD SPOT capability designed to work with popular H.264 CODEC on the market today. TW2828 provides a clean and cost effective MUX solution to the multi-channel PC HD DVR marketplace. On the embedded DVR market, using TW2828 in conjunction with a host SOC can deliver the most cost effective solution on the market.

Key Features
  • Digital Input Ports
  • Four byte interleaved BT.656 ports each supporting up to 4 SD (108 MHz) and 4 960H (144 MHz) signals for a total of 16 SD video input signals
  • Five frame interleaved BT.1120 ports, each supporting up to 148.5 MHz for a total of 20 HD signals. One port (PB5) is shared with GPIO port
  • Four frame interleaved BT.656 ports (shared with the lower half of the BT.1120 port), supporting up to 16 SD (or 960H) signals in frame/field interleaved format
  • Supports input resizing, cutting and cropping
  • Supports channel cascadingDisplay Controller
  • Supports popular sizes such as: 1920x1080i50, i60, 1920x1080p50 or p60,720p50 and p60
  • Max pixel clock: 148.5MHz
  • Capable of displaying up to 36 SD Channels by using byte interleaved inputs and frame interleaved inputs
  • Motion Box (MD) on all live channels
  • Selectable Weave/2D de-interlacing method for video quality enhancement
  • Up/down scaler for arbitrary windows size
  • OSD display layer for title and channel ID
  • Single Box Display for highlighting and Mouse/Cursor Overlay
  • BT.1120 or digital RGB output interface
  • Analog VGA output (shared with SPOT output)Digital Output Port
  • One BT. 1120 port to the backend chip
  • Digital RGB output (shared with BT.1120 port)
  • SPOT digital output (BT.656) through record (shared) pins with all the channelsSPOT and Record Interface
  • Two SPOT port with Integrated DAC
  • 1/4/9/16 format for each SD (or 960H) and HD channels
  • Supports anti-rolling display
  • Similar recording functions like TW2880Motion Detection
  • 16 SD/WD1 (960H) mode size 16x12
  • 720p HD mode 40x36
  • 1080i HD mode 60x27
  • 1080p HD mode 60x54DDR2 Interface
  • Supports 16-bit DDR2 memories running up to333MHz
  • Supports DRAM density from 512Mb to 1GbHost Interface
  • 8-bit parallel host interface or I2C slave interface (shared pin)
  • Four I2C slave addresses on two separate pins for cascaded operation
  • IRQs
Typical Diagram
Datasheets
TitleTypeUpdatedSizeOther Languages
TW2828 DatasheetPDF29 Jan 2015
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
TW2828-BA2-CR409 Ld BGA0.6444093260RoHS
TW5866 Datasheet 29 Jan 2015
409 Ld BGA TW2828