Overview
The SN65LVDS105PWG4 from Texas Instruments is a 1 LVTTL (Low-Voltage Transistor-Transistor Logic) to 4 LVDS (Low-Voltage Differential Signaling) clock fanout buffer. This device is designed to meet or exceed the ANSI TIA/EIA-644-1995 standard for LVDS signaling. It operates from a single 2.4-V to 3.6-V supply, making it versatile for various applications requiring high-speed differential signaling.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | 2.4 | 2.7 | 3.6 | V |
| Differential Output Voltage Magnitude (|VOD|) | 247 | 285 | 454 | mV |
| Propagation Delay Time (Driver) | 1.7 | 1.7 | 7 | ns |
| Propagation Delay Time (Receiver) | 3.7 | 3.7 | - | ns |
| Signaling Rates | - | Up to 400 Mbit/s | - | - |
| Bus-Terminal ESD Protection | - | Exceeds 12 kV | - | - |
| Operating Temperature Range | -40°C | - | 85°C | °C |
Key Features
- Meets or exceeds ANSI TIA/EIA-644-1995 standard for LVDS signaling.
- Operates from a single 2.4-V to 3.6-V supply.
- Signaling rates up to 400 Mbit/s or clock frequencies up to 400 MHz.
- Low-voltage differential signaling with typical output voltages of 285 mV and a 100-Ω load.
- Propagation delay times: Driver - 1.7 ns typical, Receiver - 3.7 ns typical.
- Bus-terminal ESD protection exceeds 12 kV.
- LVTTL inputs are 5-V tolerant.
- Electrically compatible with LVDS, PECL, LVPECL, LVTTL, LVCMOS, GTL, BTL, CTT, SSTL, or HSTL outputs with external networks.
- Driver outputs are high impedance when disabled or with VCC < 1.5 V.
Applications
The SN65LVDS105PWG4 is designed for point-to-point baseband data transmission over controlled impedance media, such as printed-circuit board traces, backplanes, or cables. It is suitable for applications requiring high-speed differential signaling, including:
- High-speed data transmission systems.
- Telecommunication equipment.
- Data acquisition systems.
- Industrial control systems.
- Automotive systems requiring high-speed data transfer.
Q & A
- What is the operating voltage range of the SN65LVDS105PWG4?
The SN65LVDS105PWG4 operates from a single 2.4-V to 3.6-V supply.
- What are the typical propagation delay times for the driver and receiver?
The typical propagation delay time for the driver is 1.7 ns, and for the receiver, it is 3.7 ns.
- What is the maximum signaling rate supported by the SN65LVDS105PWG4?
The device supports signaling rates up to 400 Mbit/s or clock frequencies up to 400 MHz.
- What is the typical differential output voltage magnitude?
The typical differential output voltage magnitude is 285 mV with a 100-Ω load.
- Does the SN65LVDS105PWG4 have ESD protection?
Yes, the bus-terminal ESD protection exceeds 12 kV.
- What are the compatible input and output signal types?
The device is electrically compatible with LVDS, PECL, LVPECL, LVTTL, LVCMOS, GTL, BTL, CTT, SSTL, or HSTL outputs with external networks.
- What happens to the driver outputs when disabled or with VCC < 1.5 V?
The driver outputs are high impedance when disabled or with VCC < 1.5 V.
- What is the typical power consumption of the driver and receiver?
The typical power consumption for the driver is 25 mW, and for the receiver, it is 60 mW.
- What are the common applications of the SN65LVDS105PWG4?
The device is commonly used in high-speed data transmission systems, telecommunication equipment, data acquisition systems, industrial control systems, and automotive systems requiring high-speed data transfer.
- What is the operating temperature range of the SN65LVDS105PWG4?
The operating temperature range is from -40°C to 85°C.
