Overview
The SN65LVDS104PWRG4, produced by Texas Instruments, is a 4-Port Low-Voltage Differential Signaling (LVDS) repeater. This device is designed to receive differential input levels and repeat them through four differential line drivers, adhering to the ANSI EIA/TIA-644 standard for LVDS. It operates from a single 3.3-V supply and is characterized for operation over a temperature range of –40°C to 85°C. The SN65LVDS104 is particularly useful in applications requiring precise timing alignment and low-power, low-noise data transmission over controlled impedance media such as printed-circuit board traces, backplanes, or cables.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 3.3 | 3.6 | V |
| Operating Free-Air Temperature (TA) | –40 | 85 | °C | |
| Differential Input Voltage Threshold (VIT+) | 100 | mV | ||
| Differential Output Voltage Magnitude (|VOD|) | 247 | 340 | 454 | mV |
| Propagation Delay Time (tPLH, tPHL) | 2.4, 2.2 | 3.2, 3.1 | 4.2, 4.2 | ns |
| Differential Output Signal Rise/Fall Time (tr, tf) | 0.3 | 0.8 | 1.2 | ns |
| Pulse Skew (|tPHL - tPLH|) | 150 | 500 | ps | |
| Package Type | TSSOP (16-pin) |
Key Features
- Receiver and drivers meet or exceed the requirements of ANSI EIA/TIA-644 standard for LVDS.
- Typical data signaling rates up to 400 Mbps and clock frequencies up to 400 MHz.
- Operates from a single 3.3-V supply.
- Low-voltage differential signaling with typical output voltage of 350 mV and a 100-Ω load.
- Propagation delay time of 3.1 ns (typical) for SN65LVDS104.
- LVTTL levels 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.
- Bus-pin ESD protection exceeds 16 kV.
Applications
- Clock distribution devices.
- Wireless base stations.
- Network routers.
- Point-to-point baseband data transmission over controlled impedance media such as printed-circuit board traces, backplanes, or cables.
Q & A
- What is the primary function of the SN65LVDS104?
The SN65LVDS104 is a 4-Port LVDS repeater that receives differential input levels and repeats them through four differential line drivers.
- What is the operating voltage range for the SN65LVDS104?
The device operates from a single 3.3-V supply, with a voltage range of 3 to 3.6 V.
- What are the typical data signaling rates supported by the SN65LVDS104?
The device supports typical data signaling rates up to 400 Mbps and clock frequencies up to 400 MHz.
- What is the propagation delay time for the SN65LVDS104?
The propagation delay time is typically 3.1 ns for the SN65LVDS104.
- Is the SN65LVDS104 compatible with other signaling standards?
Yes, it is electrically compatible with LVDS, PECL, LVPECL, LVTTL, LVCMOS, GTL, BTL, CTT, SSTL, or HSTL outputs with external networks.
- What kind of ESD protection does the SN65LVDS104 offer?
The device offers bus-pin ESD protection that exceeds 16 kV.
- What are the typical applications for the SN65LVDS104?
Typical applications include clock distribution devices, wireless base stations, network routers, and point-to-point baseband data transmission.
- What is the temperature range for which the SN65LVDS104 is characterized?
The device is characterized for operation over a temperature range of –40°C to 85°C.
- What type of package is available for the SN65LVDS104?
The device is available in a 16-pin TSSOP package.
- How does the SN65LVDS104 handle driver outputs when disabled or with low VCC?
Driver outputs are high-impedance when disabled or with VCC < 1.5 V.
