Overview
The SN65LVDS109DBT is a dual 4-port Low-Voltage Differential Signaling (LVDS) repeater manufactured by Texas Instruments. This device is designed to meet or exceed the requirements of the ANSI EIA/TIA-644 standard. It features two line receivers and eight line drivers, arranged in pairs from each bank, enabling precise timing alignment and high-speed data transmission. The SN65LVDS109DBT is packaged in a Thin Shrink Small-Outline Package (TSSOP) with 38 pins and operates over a temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (DBT) | - |
| Pins | 38 | - |
| Operating Temperature Range | –40 to 85 | °C |
| Supply Voltage Range | –0.5 to 4 | V |
| Enable Input Voltage Range | –0.5 to 6 | V |
| Input Voltage Range (A, B, Y or Z) | –0.5 to 4 | V |
| Differential Output Voltage Magnitude | 247 to 454 | mV |
| Propagation Delay Time | < 4.5 | ns |
| Output Skew | < 550 ps | ps |
| Bank Skew | < 150 ps | ps |
| Part-to-Part Skew | < 1.5 ns | ns |
| Total Power Dissipation | < 500 mW | mW |
| Bus-Pin ESD Protection | > 12 kV | kV |
Key Features
- Two line receivers and eight line drivers, meeting or exceeding ANSI EIA/TIA-644 standard requirements.
- Typical data signaling rates up to 400 Mbps or clock frequencies up to 400 MHz.
- Outputs arranged in pairs from each bank with individual and global enable controls.
- Low-Voltage Differential Signaling with typical output voltage of 350 mV and a 100-Ω load.
- Electrically compatible with LVDS, PECL, LVPECL, LVTTL, LVCMOS, GTL, BTL, CTT, SSTL, or HSTL outputs with external termination networks.
- Propagation delay times less than 4.5 ns and output skew less than 550 ps.
- Driver outputs or receiver input equals high impedance when disabled or with VCC < 1.5 V.
- Bus-pin ESD protection exceeds 12 kV.
Applications
The SN65LVDS109DBT is intended for point-to-point or point-to-multipoint (distributed simplex) baseband data transmission on controlled impedance media of approximately 100 Ω. This includes applications such as:
- Printed-circuit board traces.
- Backplanes.
- Cables.
- System clock and data distribution trees.
Q & A
- What is the SN65LVDS109DBT?
The SN65LVDS109DBT is a dual 4-port Low-Voltage Differential Signaling (LVDS) repeater manufactured by Texas Instruments. - What is the operating temperature range of the SN65LVDS109DBT?
The operating temperature range is –40°C to 85°C. - What is the typical data signaling rate of the SN65LVDS109DBT?
The typical data signaling rate is up to 400 Mbps or clock frequencies up to 400 MHz. - How are the outputs arranged in the SN65LVDS109DBT?
The outputs are arranged in pairs from each bank with individual and global enable controls. - What is the typical output voltage of the SN65LVDS109DBT?
The typical output voltage is 350 mV with a 100-Ω load. - Is the SN65LVDS109DBT 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 termination networks. - What is the propagation delay time of the SN65LVDS109DBT?
The propagation delay time is less than 4.5 ns. - What is the ESD protection level of the SN65LVDS109DBT?
The bus-pin ESD protection exceeds 12 kV. - What are the typical applications of the SN65LVDS109DBT?
It is used for point-to-point or point-to-multipoint baseband data transmission on controlled impedance media such as printed-circuit board traces, backplanes, or cables, and for system clock and data distribution trees. - How many pins does the SN65LVDS109DBT have?
The SN65LVDS109DBT has 38 pins in a TSSOP (DBT) package. - What is the total power dissipation of the SN65LVDS109DBT?
The total power dissipation is typically less than 500 mW with all ports enabled and at 200 MHz.
