DS90CF581�DS90CF582 LVDS 24-Bit Color Flat Panel Display (FPD) Link is a chipset released by National Semiconductor for connecting displays and motherboards. The chipset uses a 40MHz clock frequency to convert 28 bits of CMOS�TTL data into four LVDS data streams, and transmits the data through the fifth LVDS link to the display. DS90CF581 can transmit 40MHz clock signal and 4 LVDS data streams to the display, and DS90CF582 can convert the received 4 LVDS data streams to 28 bits of CMOS�TTL data stream and output the data to the motherboard. The chipset has low power consumption, low EMI and other features.
The document describes a chipset designed to solve EMI and cable size problems associated with wide, high-speed TTL interfaces. The DS90CF581 transmitter converts 28 bits of CMOS/TTL input data into four LVDS data streams plus a phase-locked transmit clock. Conversely, the DS90CF582 receiver converts these LVDS data streams back into 28 bits of CMOS/TTL data.
At a clock frequency of 40 MHz, the system transmits 24 bits of RGB data and 4 bits of LCD timing/control data at a rate of 280 Mbps per channel. The chipset operates with a low power CMOS design and requires no external components for its PLL.
| Bandwidth | Up to 140 Megabyte/sec |
|---|---|
| LVDS Swing | 345 mV |
| Supply Voltage (Vcc) | 4.5 to 5.5 V |
| Operating Temperature Range | -10°C to +70°C |
The recommended operating supply voltage ranges from a minimum of 4.5 V to a maximum of 5.5 V.
The device can operate in an ambient air temperature range up to a maximum of +70 °C.