Overview
The DS92LV18TVV/NOPB, produced by Texas Instruments, is a high-performance Serializer/Deserializer (SERDES) pair designed to efficiently transmit and receive data over serial links. This device combines both serializer and deserializer functions on a single chip, enabling the conversion of an 18-bit parallel bus into a BLVDS (Bus Low Voltage Differential Signaling) serial stream with embedded clock information. This functionality simplifies data transmission over PCB traces and cables by eliminating skew problems between parallel data and clock paths, thereby reducing system costs and complexity.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3.15 | 3.3 | 3.45 | V |
| Operating Temperature | -40 | +25 | +85 | °C |
| Clock Rate | 15 | - | 66 | MHz |
| Serial Data Rate | - | - | 2.376 Gbps | - |
| Supply Current (Typical at 66 MHz) | - | 190 | 320 | mA |
| Power Down Supply Current | - | 1.5 | 3.0 | mA |
| ESD Rating (HBM) | - | - | >2.0 kV | - |
| Package Type | - | - | LQFP-80 (12x12) | - |
Key Features
- 15–66 MHz 18:1/1:18 Serializer/Deserializer with full duplex throughput of 2.376 Gbps.
- Independent Transmitter and Receiver operation with separate Clock, Enable, and Power Down Pins.
- Hot Plug Protection (Power Up High Impedance) and Synchronization (Receiver Locks to Random Data).
- Wide ±5% Reference Clock Frequency Tolerance for easy system design using locally-generated clocks.
- Line and Local Loopback Modes for testing the device functionality and transmission line continuity.
- Robust BLVDS Serial Transmission Across Backplanes and Cables for Low EMI.
- No External Coding Required; Internal PLL, no external PLL components needed.
- Single +3.3V Power Supply and Low Power Consumption (90mA typical for Transmitter, 100mA typical for Receiver at 66 MHz).
- ±100 mV Receiver Input Threshold and Loss of Lock Detection and Reporting Pin.
- Industrial Temperature Range: -40 to +85°C and >2.0kV HBM ESD protection.
- Compact, Standard 80-Pin LQFP Package.
Applications
The DS92LV18TVV/NOPB is suitable for various high-speed data transmission applications, including:
- Backplane and cable interconnects in telecommunications and data communication systems.
- High-speed data links in industrial control systems and medical devices.
- Point-to-point and multi-point serial data transmission in automotive and aerospace systems.
- Server and storage systems requiring high-speed, low-latency data transfer.
Q & A
- What is the primary function of the DS92LV18TVV/NOPB?
The primary function is to serialize an 18-bit parallel bus into a BLVDS serial stream and deserialize it back to an 18-bit parallel bus.
- What is the operating clock rate range for the DS92LV18TVV/NOPB?
The operating clock rate range is from 15 MHz to 66 MHz.
- What is the maximum serial data rate supported by the DS92LV18TVV/NOPB?
The maximum serial data rate is 2.376 Gbps.
- Does the DS92LV18TVV/NOPB require external PLL components?
No, it has an internal PLL and does not require external PLL components.
- What is the power supply voltage for the DS92LV18TVV/NOPB?
The power supply voltage is +3.3V.
- What are the loopback modes available in the DS92LV18TVV/NOPB?
The device supports Line Loopback and Local Loopback modes for testing purposes.
- What is the ESD protection rating for the DS92LV18TVV/NOPB?
The ESD protection rating is >2.0 kV HBM.
- What is the operating temperature range for the DS92LV18TVV/NOPB?
The operating temperature range is from -40°C to +85°C.
- What type of package does the DS92LV18TVV/NOPB come in?
The device comes in an 80-pin LQFP package.
- How does the DS92LV18TVV/NOPB handle hot plug protection?
The device features hot plug protection with power up high impedance.
