Overview
The DS90CF383BMTX/NOPB, produced by Texas Instruments, is a +3.3V programmable Low Voltage Differential Signaling (LVDS) transmitter designed for 24-bit Flat Panel Display (FPD) links. This device is optimized for high-speed data transmission, making it an ideal solution for applications requiring low electromagnetic interference (EMI) and reduced cable size.
It converts 28 bits of CMOS/TTL data into four LVDS data streams and transmits a phase-locked clock in parallel with the data over a fifth LVDS link. The DS90CF383BMTX/NOPB supports various display resolutions, including VGA, SVGA, XGA, and dual pixel SXGA, and is backward compatible with earlier models like the DS90C383/DS90CF383 and DS90C383A/DS90CF383A.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3.0 | 3.3 | 3.6 | V |
| Operating Free Air Temperature (TA) | -10 | 25 | 70 | °C |
| Transmit Clock Frequency (TxCLKIN) | 18 | - | 68 | MHz |
| Differential Output Voltage (VOD) | 250 | 345 | 450 | mV |
| Transmitter Supply Current (ICCTW) at 65 MHz | 48 | - | 60 | mA |
| Power Down Current | - | 17 | 150 | μA |
| Package Type | - | - | TSSOP (DGG) 56 pins | - |
Key Features
- No special start-up sequence required; input clock/data can be applied before or after the device is powered.
- Supports Spread Spectrum Clocking up to 100 kHz frequency modulation with ±2.5% center spread or -5% down spread.
- Input clock detection feature pulls all LVDS pairs to logic low when the input clock is missing and the /PD pin is logic high.
- Best-in-class set and hold times on TxINPUTs.
- Low power consumption: < 130 mW at 65 MHz (typical) and < 60 μW in power-down mode.
- Up to 1.8 Gbps throughput and up to 227 Megabytes/sec bandwidth.
- 345 mV (typical) swing LVDS devices for low EMI.
- PLL requires no external components.
- Compatible with TIA/EIA-644 LVDS standard.
- Low profile 56-lead TSSOP package.
Applications
The DS90CF383BMTX/NOPB is designed for various display applications, including:
- Flat Panel Displays (FPDs): Supports VGA, SVGA, XGA, and dual pixel SXGA resolutions.
- High-Speed Data Transmission: Ideal for reducing EMI and cable size in high-speed interfaces.
- Industrial and Automotive Systems: Suitable for environments requiring robust and low-power solutions.
Q & A
- What is the primary function of the DS90CF383BMTX/NOPB?
The DS90CF383BMTX/NOPB converts 28 bits of CMOS/TTL data into four LVDS data streams and transmits a phase-locked clock in parallel with the data.
- What are the supported display resolutions?
The device supports VGA, SVGA, XGA, and dual pixel SXGA resolutions.
- What is the typical power consumption at 65 MHz?
The typical power consumption is less than 130 mW at 65 MHz.
- Does the device support Spread Spectrum Clocking?
- What is the package type of the DS90CF383BMTX/NOPB?
The device is packaged in a 56-lead TSSOP (DGG) package.
- Is the device backward compatible with earlier models?
- What is the maximum operating temperature?
The maximum operating temperature is 70°C.
- Does the device require any special start-up sequence?
No, the device does not require any special start-up sequence.
- How does the input clock detection feature work?
The input clock detection feature pulls all LVDS pairs to logic low when the input clock is missing and the /PD pin is logic high.
- What is the power consumption in power-down mode?
The power consumption in power-down mode is less than 60 μW.
