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BIT1628A

10-Bit Digital Video Decoder with OSD

Features

General:

  • No external memory required
  • One 10-bit video CMOS Analog-to-Digital Converters (ADCs) in differential CMOS style for best S/N-performance
  • Fully programmable static gain or automatic gain control (AGC): 0~12db (Analog) and 0~18db (Digital)
  • One analog input
  • Automatic Clamp Control (ACC) for CVBS,
  • On-chip clock generator
  • L-lock system clock frequencies
  • Digital PLL for synchronization and clock generation from all standards and non-standard video sources e.g. consumer grade VTR
  • Requires only one crystal (24.576 MHz) for all standards
  • Automatic detection of 50 and 60 Hz field frequency, and automatic switching between PAL and NTSC standards
  • Accepts NTSC (J, M, 4.43), PAL (60, B, D, G, H, I, M, N), and SECAM (B, D, G, K, K1, L) video signal
  • User programmable luminance peaking or aperture correction
  • Adaptive 3/5-line comb filter for two dimensional chrominance/luminance separation
  • PAL delay line for correcting PAL phase errors
  • Multi-standard VBI-data slicer including closed caption
  • MV copy protection detection
  • YUV to RGB color space converting
  • Fully programmable zoom-out arbitrary ratio in both horizontal and vertical
  • Anamorphic zoom for 4:3 video input to 16:9 display converting
  • Embedded brightness, contrast, sharpness and gamma correction
  • Embedded Skin-Tone and CTI
  • Embedded programmable OSD for user Interface
  • Embedded 3 PWM (Pulse Width Modulation) generators for general purpose control
  • Embedded IR remote control decoder

Output:

  • 3x8 Bits digital output ports (R,G,B)
  • Programmable RGB output port order and pin order
  • Maximum output pixel frequency 85MHz@ digital output
  • Support inverse and frequency adjustment for LCD panel clock
  • Support programmable H/V sync. for LCD panel
  • Support Delta and Stripe types LCD panel
  • Free-run Synchronization mode if sync signal disappeared

Interface:

  • Support Two-Wire Serial Interface (TWSI) Bus interface
  • Support 24Cxx serial EEPROM Boot 8051 controller

OSD:

  • Built-in OSD generator with 128 ROM fonts, 512 mix color
  • 3 windows support overlay function
  • 2048x12 prgrammable OSD Memory
  • Independent zoom ratio x1~x16 for horizontal and vertical direction
  • Programmable Vertical Direction Line Space
  • Programmable Horizontal Character Space
  • Flashing font attribute
  • Fringe font attribute
  • Transparent overlay for OSD windows

Power management:

  • 1.8V power source for core,
  • 3.3V power source for output pads
  • Power Consumption less than 300 mW

Package:

  • LQFP 64 pins
Video Decoder/Image Processor 1221058