Overview
The SN65LVDS109DBTR, produced by Texas Instruments, is a dual 4-port Low-Voltage Differential Signaling (LVDS) repeater. This device is designed to enhance the distribution of timing-critical clock and data signals, addressing issues such as excessive skew, noise pickup, and high power consumption. It is part of the SN65L series, known for high-performance interface chips that offer low power consumption, high-speed data transmission, and robust ESD protection.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 3.3 | 3.6 | V |
| Operating Temperature (TA) | -40 | 85 | °C | |
| Differential Input Voltage Threshold (VITH+) | 100 | mV | ||
| Differential Output Voltage Magnitude (|VOD|) | 247 | 340 | 454 | mV |
| Propagation Delay Time (tPLH, tPHL) | 1.6 | 2.8 | 4.5 | ns |
| Differential Output Signal Rise/Fall Time (tr, tf) | 0.3 | 0.8 | 1.2 | ns |
| Output Skew | <550 | ps | ||
| Bank Skew | <150 | ps | ||
| Part-to-Part Skew | <1.5 | ns | ||
| Total Power Dissipation | <500 | mW |
Key Features
- Two line receivers and eight line drivers, meeting or exceeding ANSI EIA/TIA-644 standard.
- Typical data signaling rates up to 400 Mbps and clock frequencies up to 400 MHz.
- Outputs arranged in pairs from each bank, enabling precise timing alignment.
- Individual control of each driver output pair and all outputs through enable inputs.
- Low-voltage differential signaling with a typical output voltage of 350 mV and a 100-Ω load.
- Electrically compatible with LVDS, PECL, LVPECL, LVTTL, LVCMOS, GTL, BTL, CTT, SSTL, and HSTL outputs.
- Propagation delay times less than 4.5 ns and output skew less than 550 ps.
- Bus-pin ESD protection exceeds 12 kV.
- Packaged in a thin shrink small-outline package with a 20-mil terminal pitch.
Applications
The SN65LVDS109DBTR is suitable for various applications requiring high-speed data transmission and precise timing, including:
- Point-to-point or point-to-multipoint (distributed simplex) data transmission on controlled impedance media such as printed-circuit board traces, backplanes, or cables.
- System clock and data distribution trees where low skew and high signal integrity are crucial.
- Industrial and consumer electronics projects that demand reliable and efficient communication systems.
- Automotive applications where robust ESD protection and low power consumption are essential.
Q & A
- What is the primary function of the SN65LVDS109DBTR?
The SN65LVDS109DBTR is a dual 4-port LVDS repeater designed to enhance the distribution of timing-critical clock and data signals. - What are the typical data signaling rates supported by this device?
The device supports typical data signaling rates up to 400 Mbps and clock frequencies up to 400 MHz. - How many line receivers and line drivers does the SN65LVDS109DBTR have?
The device has two line receivers and eight line drivers. - What is the typical output voltage of the SN65LVDS109DBTR?
The typical output voltage is 350 mV with a 100-Ω load. - What is the propagation delay time of the SN65LVDS109DBTR?
The propagation delay time is less than 4.5 ns. - Is the SN65LVDS109DBTR compatible with other signaling standards?
Yes, it is electrically compatible with LVDS, PECL, LVPECL, LVTTL, LVCMOS, GTL, BTL, CTT, SSTL, and HSTL outputs. - What is the ESD protection level of the SN65LVDS109DBTR?
The bus-pin ESD protection exceeds 12 kV. - In what package is the SN65LVDS109DBTR available?
The device is packaged in a thin shrink small-outline package with a 20-mil terminal pitch. - What are some common applications of the SN65LVDS109DBTR?
Common applications include point-to-point or point-to-multipoint data transmission, system clock and data distribution trees, industrial and consumer electronics, and automotive applications. - What is the operating temperature range of the SN65LVDS109DBTR?
The operating temperature range is from -40°C to 85°C.
