TC2090 – 1926-Channel 8-bit SIPI™ Source Driver

1926 channel source driver for TFT COG LCD panels

TC2090 is a 1926/1896/1812/1740/1692/1632/1548/1512-channel source driver for high resolution TFT LCD panels. It is designed for COG (Chip-on-glass) application. The input interface is SIPI™ (Scalable Intra Panel Interface) which was developed and patented by Parade Technologies. SIPI is a high speed, point-to-point interface between the Timing Controller (TCON) and Source Driver (SD), including the TC2090. The SIPI intra panel interface provides scalable bandwidth with reduced bus width, low EMI, low power, a more robust protocol to establish the high-speed link, and enhance system reliability. SIPI was developed to address the newer demands created by increased display performance on notebook and tablet PCs and other consumer electronics applications.

On the output side, the TC2090 converts 8-bit (RGB888) digital data into a 256-level gray scale analog voltage for each sub-pixel channel, charging each sub-pixel to the correct gray level. It also supports up to 14 reference voltages for Gamma correction.

Features

  • 1926 channel source driver for TFT LCD
  • SIPI1.2 interface with 1, 2 or 4 lane options up to 2.2Gb/s
    • Display data scrambling and 8B/10B encoding
    • Embedded clocking
    • Error correction for all control data
    • Low EMI/RFI
    • Supports SIPI link Spread Clocking
  • Driver Output: 1926/1896/1812/1740/1692/1632/1548/1512 channels
  • 8-bit color depth for 256 gray scale
  • Embedded programmable internal gamma buffers
  • Gamma correction levels: 14 (2in or 4in)
  • Supports Main buffer chopping and Gamma buffer chopping mode
  • Supports Link Quality Enhancement Ver. 2
  • Supports Column inversion, Square inversion and Zigzag
  • Supports dynamic bias control
  • Protocol based dynamic power saving
  • 60mV input sensitivity
  • Supports SIPI advanced features for debugging and manufacturing test
    • One wire auxiliary status channel (ASC) for source driver status monitoring
    • Symbol error checking during normal operation
    • Extensive configuration packets for Source Driver configuration
  • Logic supply voltage: 1.5V
  • LCD driver supply voltage: AVDDP 4.0V ~ 6.0V, AVDDN -6.0V ~ -4.0V
  • Package: COG

Applications

  • High refresh rate COG LCD panels