THS8133

 Triple 10-bit D/A Converters
 Minimum 80 MSPS Operation
 Direct Drive of Doubly-Terminated 75-W
    Load Into Standard Video Levels
3*10 Bit 4:4:4, 2*10 Bit 4:2:2 or 1*10 Bit
   4:2:2 (ITU-BT.656) Multiplexed YPbPr/GBR
   Input Modes
 Bi-Level (EIA) or Tri-Level (SMPTE) Sync
    Generation With 7:3 Video/Sync Ratio
 Integrated Insertion of Sync-On-Green/
    Luminance or Sync-On-All Channels
 Configurable Blanking Level
 Internal Voltage Reference

High-Definition Television (HDTV) Set-Top Boxes/Receivers
High-Resolution Image Processing
 Desktop Publishing
Direct Digital Synthesis/I-Q Modulation

Supply voltage: AVDD to AVSS, DVDD to DVSS . . . . . . . . . . . . . . . . . 0.5 V to 7 V
AVDD to DVDD, AVSS to DVSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 0.5 V
Digital input voltage range to DVSS . . . . . . . . . . . . . . . . . .0.5 V to DVDD + 0.5 V
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . .0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . .55°C to 150°C

The THS8133 is a general-purpose triple high-speed D/A converter (DAC) optimized for use in video/graphics applications. The device operates from a 5-V analog supply and a 3-V to 5-V range digital supply. The THS8133 has a sampling rate up to 80 MSPS. The device consists of three 10-bit D/A converters and additional circuitry for bi-level/tri-level sync and blanking level generation in video applications.

THS8133 is also well suited in applications where multiple well-matched and synchronously operating DACs are needed; for example, I-Q modulation and direct-digital synthesis in communications equipment.

The current-steering DACs can be directly terminated in resistive loads to produce voltage outputs. The THS8133 provides a flexible configuration of maximum output current drive. Its output drivers are specifically designed to produce standard video output levels when directly connected to a single-ended doubly-terminated 75 W coaxial cable. Full-scale video/sync are generated in a 7:3 ratio, compliant with SMPTE standards for GBR and
YPbPr signals.

Furthermore, the THS8133 can generate both a traditional bi-level sync or a tri-level sync signal, as per the SMPTE standards, via a digital control interface. The sync signal is inserted on one of the analog output channels (sync-on-green/luminance) or on all output channels. Also, a blanking control signal sets the outputs to defined levels during the nonactive video window.

Finally the input format can be either 3×10 bit 4:4:4, 2×10 bit 4:2:2, or 1×10 bit 4:2:2. This enables a direct interface to a wide range of video DSP/ASICs including parts generating ITU-BT.656 formatted output data.