Overview
The DS90CR286MTDX/NOPB is a part of the Channel Link family of devices from Texas Instruments. This component is a receiver in a chipset that includes the DS90CR285 transmitter. The DS90CR286 converts four LVDS (Low Voltage Differential Signaling) data streams back into 28 bits of parallel CMOS/TTL data. It is designed for high-speed data transmission applications, offering significant advantages in terms of bandwidth, power consumption, and cable size reduction.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3.0 | 3.3 | 3.6 | V |
| Operating Temperature (TA) | -40 | - | 85 | °C |
| LVDS Differential Output Voltage (VOD) | 250 | 290 | 450 | mV |
| LVDS Receiver Input High Threshold (VTH) | 100 | - | - | mV |
| LVDS Receiver Input Low Threshold (VTL) | -100 | - | - | mV |
| Power Consumption (Typical) | - | < 250 | - | mW |
| Power-Down Mode Current | 10 | - | 55 | μA |
| Data Throughput | - | 1.848 Gbps | - | - |
| Bandwidth | - | 231 Megabytes/sec | - | - |
Key Features
- Single +3.3V supply operation
- Converts four LVDS data streams back into 28 bits of parallel CMOS/TTL data
- Includes a phase-locked transmit clock transmitted in parallel with the data streams
- Low power consumption: < 250 mW typical, < 0.5 mW in power-down mode
- High data throughput: up to 1.848 Gbps or 231 Megabytes/sec
- Narrow bus reduces cable size, providing system cost savings and reduced shielding requirements
- Supports a variety of signal combinations, such as seven 4-bit nibbles or three 9-bit (byte + parity) and 1 control
- Power-down mode with low current consumption
Applications
The DS90CR286 is intended for use in a wide variety of high-speed data transmission applications. These include:
- Point-to-point data transmission systems
- High-speed data links in industrial, automotive, and medical devices
- Flat panel displays and other display interfaces
- Cable reduction in various electronic systems due to its narrow bus architecture
The ideal cable/connector interface should have a constant 100Ω differential impedance throughout the path, and cable skew should remain below 150 ps at a 66 MHz clock rate to maintain a sufficient data sampling window at the receiver.
Q & A
- What is the primary function of the DS90CR286?
The DS90CR286 converts four LVDS data streams back into 28 bits of parallel CMOS/TTL data.
- What is the operating supply voltage range for the DS90CR286?
The operating supply voltage range is from 3.0V to 3.6V.
- What is the typical power consumption of the DS90CR286?
The typical power consumption is less than 250 mW.
- How does the power-down mode work on the DS90CR286?
The power-down mode is activated by asserting the Powerdown pin (active low), reducing the total power dissipation to approximately 5 μW.
- What is the maximum data throughput of the DS90CR286?
The maximum data throughput is up to 1.848 Gbps or 231 Megabytes/sec.
- What type of cables are recommended for use with the DS90CR286?
Recommended cable types include flat ribbon, flex, twisted pair, and Twin-Coax, with a constant 100Ω differential impedance and cable skew below 150 ps at 66 MHz.
- How does the DS90CR286 handle common mode noise?
The DS90CR286 supports an input voltage range of Ground to +2.4V, allowing for ±1.0V shifting of the center point due to ground potential differences and common mode noise.
- What is the significance of the narrow bus architecture in the DS90CR286?
The narrow bus architecture reduces cable size, providing system cost savings, reduced connector physical size and cost, and reduced shielding requirements.
- Can the DS90CR286 be used in high-temperature environments?
The DS90CR286 operates over a temperature range of -40°C to +85°C.
- Is the DS90CR286 RoHS compliant?
Yes, the DS90CR286 is RoHS compliant.
