--- 产品详情 ---
Function | Serializer |
Color depth (bpp) | 24 |
Input compatibility | LVCMOS |
Pixel clock frequency (Max) (MHz) | 68 |
Output compatibility | FPD-Link LVDS |
Features | Low-EMI Point-to-Point Communication |
Operating temperature range (C) | -10 to 70 |
- No special start-up sequence required between clock/data and /PD pins. Input signal (clock and data) can be applied either before or after the device is powered
- Support Spread Spectrum Clocking up to 100kHz frequency modulation and deviations of ±2.5% center spread or -5% down spread
- "Input Clock Detection" feature will pull all LVDS pairs to logic low when input clock is missing and when /PD pin is logic high
- 18 to 68 MHz shift clock support
- Best-in-Class Setup and Hold Times on TxINPUTs
- Tx power consumption < 130 mW (typ) at 65MHz Grayscale
- 40% Less Power Dissipation than BiCMOS Alternatives
- Tx Power-down mode < 60μW (typ)
- Supports VGA, SVGA, XGA and Dual Pixel SXGA.
- Narrow bus reduces cable size and cost
- Up to 1.8 Gbps throughput
- Up to 227 Megabytes/sec bandwidth
- 345 mV (typ) swing LVDS devices for low EMI
- PLL requires no external components
- Compatible with TIA/EIA-644 LVDS standard
- Low profile 56-lead TSSOP package
- Improved replacement for:
- SN75LVDS83, DS90C383A
All trademarks are the property of their respective owners. TRI-STATE is a trademark of Texas Instruments. TRI-STATE is a trademark of Texas Instruments.
The DS90C383B transmitter converts 28 bits of CMOS/TTL data into four LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. Every cycle of the transmit clock 28 bits of input data are sampled and transmitted. At a transmit clock frequency of 65 MHz, 24 bits of RGB data and 3 bits of LCD timing and control data (FPLINE, FPFRAME, DRDY) are transmitted at a rate of 455 Mbps per LVDS data channel. Using a 65 MHz clock, the data throughput is 227 Mbytes/sec. The DS90C383B transmitter can be programmed for Rising edge strobe or Falling edge strobe through a dedicated pin. A Rising edge or Falling edge strobe transmitter will interoperate with a Falling edge strobe Receiver (DS90CF386) without any translation logic.
This chipset is an ideal means to solve EMI and cable size problems associated with wide, high speed TTL interfaces.
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