DS90C031BTMX - 155.5Mbps Quad LVDS Driver | Texas Instruments
料号： DS90C031BTMX ✓ 量产中DS90C031BTMX 概述
An LVDS line driver is a differential interface component that transmits complementary signals over a balanced pair of conductors. It belongs to the broader line-driver and interface-IC hierarchy, helping improve noise immunity, reduce EMI emissions, and support reliable data transfer over longer cable or backplane connections compared with single-ended signaling. The DS90C031BTMX is intended for systems that require multiple channels and high signaling rates without the higher power consumption associated with older PECL and pseudo-ECL solutions.
Key performance characteristics include support for rates in excess of 155.5 Mbps, ±350 mV differential signaling, maximum differential skew of 400 ps at 5 V and 25°C, and maximum propagation delay of 3.5 ns. The 4.5 V to 5.5 V supply range accommodates conventional 5 V CMOS systems. Power-off output impedance prevents the driver from imposing an active load on an unpowered interface, which is useful during system startup, shutdown, and fault-recovery sequences.
The DS90C031B architecture uses four independent TTL/CMOS-to-LVDS channels. Its differential outputs minimize sensitivity to common-mode noise found around industrial machinery, test equipment, and computer systems. The specified maximum propagation delay and skew values are particularly important in parallel data links, clock distribution networks, and backplane interfaces where timing alignment directly affects word capture and bus reliability.
Typical uses include industrial-control links, instrumentation interconnects, test-and-measurement equipment, computer peripheral interfaces, and multi-channel point-to-point communication. The companion DS90C032 receiver provides a practical way to build complete LVDS links, while DS26C31, MB571, and 41LG interfaces are identified as pin-compatible families in the manufacturer documentation.
When laying out a board, use a controlled-impedance LVDS interface, maintain symmetrical routing between each differential pair, provide a continuous return path, and terminate the receiver according to the receiver implementation. Decoupling capacitors should be placed close to the supply and ground pins. Differential pair geometry and return-path continuity are critical because they determine the practical noise immunity and signal-integrity performance of the link.
This product page combines device specifications, interface guidance, drop-in alternatives, and side-by-side engineering comparisons. The comparison information helps designers distinguish revision and order-code choices while preserving the 16-SOIC footprint, four-driver organization, and 4.5 V to 5.5 V operating class required by the original design.
直接替换替代料： DS90C031BTMX ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DS90C031BTMX （相同外形与封装尺寸） ——差异在于 Maximum Data Rate.
DS90C031BTMX/NOPB
✅ 直接替换📋 参考替代料（不在目录中）
DS90C031BTM/NOPB
✅ 直接替换📋 参考替代料（不在目录中）
DS90C031TM/NOPB
✅ 直接替换📋 参考替代料（不在目录中）
DS90C031TMX
✅ 直接替换联系询价
查看数据手册 →DS26C31TM/NOPB
✅ 直接替换📋 参考替代料（不在目录中）
DS90C031BTMX 规格参数
| Number of Drivers | 4 channels |
| Number of Receivers | 0 channels |
| Maximum Data Rate | 155.5 Mbps minimum supported rate |
| Maximum Switching Frequency | 77.7 MHz |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Input Logic Compatibility | TTL/CMOS |
| Output Protocol | LVDS |
| Differential Output Amplitude | 350 mV typical |
| Maximum Differential Skew | 400 ps at 5 V and 25°C |
| Maximum Propagation Delay | 3.5 ns |
| Power-Off Output State | High impedance |
| 工作温度范围 | -40°C to 85°C |
| 封装 | 16-pin SOIC |
| Package Width | 3.90 mm |
| 安装类型 | Surface mount |
| Terminal Form | Gull wing |
| Number of Terminals | 16 |
| Packaging | Tape and reel |
| RoHS 状态 | RoHS3 compliant |
DS90C031BTMX 3.90 mm 引脚配置指南
DS90C031BTMX（3.90 mm 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： DS90C031BTMX.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DS90C031BTMX 适用于 6 应用s: Industrial Control Backplanes, Test and Measurement Instrumentation, Computer Peripheral Data Links, Clock and Data Distribution, High-Speed Point-to-Point Communication, Embedded Equipment Communication.
Industrial Control Backplanes
The DS90C031BTMX fits industrial control backplanes requiring four low-power differential channels with data rates above 155.5 Mbps. Its 350 mV LVDS output and high-impedance power-off state reduce the electrical loading that can complicate shared industrial buses. Route each pair as a controlled-impedance differential channel with a continuous ground reference to preserve noise immunity around motors, contactors, and switching power supplies. The 3.5 ns maximum propagation delay and 400 ps skew limit at 5 V and 25°C should be included in the timing budget for synchronized control data.
推荐
Test and Measurement Instrumentation
The DS90C031BTMX supports point-to-point transfers between test instruments, data-acquisition modules, and laboratory controllers. Supporting more than 155.5 Mbps allows it to carry synchronized timing, status, and measurement data without using a separate transmitter for every function. Differential LVDS signaling is useful in instrument systems where chassis noise and ground-potential variations can disturb single-ended links. Place the receiver at the far end of the cable, implement the receiver's specified termination, and confirm propagation-delay and skew margins before enabling high-volume sampling or calibration traffic.
推荐
Computer Peripheral Data Links
The four independent driver channels in the DS90C031BTMX are useful for compact computer peripheral links that require multiple low-voltage differential outputs. The device accepts TTL/CMOS inputs, making it suitable for driving a receiver from a digital controller while retaining low power dissipation. Its high-impedance outputs during power-off help simplify bus-state management when an expansion card or peripheral is disconnected. The PCB should use short, symmetric differential traces, uninterrupted return paths, and receiver-side termination to minimize reflections and maintain the advertised 155.5 Mbps capability.
推荐
Clock and Data Distribution
The DS90C031BTMX can distribute four clock or data signals through low-voltage differential links when multiple receivers must receive closely related information. Differential signaling supports common-mode noise rejection, while the specified 400 ps maximum differential skew at 5 V and 25°C provides a useful basis for assessing channel-to-channel alignment. Account for the 3.5 ns maximum propagation delay when defining setup and hold windows at the receiver. Validate the complete source-to-destination timing budget across voltage and temperature rather than assuming the room-temperature limit applies throughout the operating range.
推荐
High-Speed Point-to-Point Communication
The DS90C031BTMX targets high-speed point-to-point communication where four channels must operate from a conventional 5 V supply. Its support for rates above 155.5 Mbps and 350 mV differential signaling makes it appropriate for transferring commands, status, and parallel data between two circuit assemblies. The 4.5 V to 5.5 V supply range provides compatibility with 5 V CMOS systems, while high-impedance outputs improve behavior during shutdown. Confirm cable length, impedance, receiver thresholds, and termination because connector and cable losses can determine the practical maximum data rate.
推荐
Embedded Equipment Communication
The DS90C031BTMX is suitable for communication links inside embedded industrial and diagnostic equipment where four compact channels are needed and board area is constrained. Its 16-SOIC package, low-power operation, and support for TTL/CMOS inputs simplify integration with digital control logic. Use short differential routes where possible and keep the supply return path continuous beneath the device to reduce inductance-related timing disturbance. The -40°C to 85°C range supports industrial equipment environments, but the complete enclosure, cable, and receiver design must also satisfy the system environmental requirements.
推荐
推荐产品汇总
工程参考数据： DS90C031BTMX ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DS90C031BTMX/NOPB | DS90C031BTM/NOPB | DS90C031TM/NOPB | DS90C031TMX | DS26C31TM/NOPB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 16-SOIC | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same |
| Number of Drivers | 4 | 4 | 4 | 4 | 4 | 4 |
| Number of Receivers | 0 | 0 | 0 | 0 | 0 | 0 |
| Output Protocol | LVDS | LVDS | LVDS | LVDS | LVDS | LVDS |
关键差异点
- Four differential channels in one package （对比 DS26C31TM/NOPB)
- High-speed operation with explicit skew control （对比 DS90C031TM/NOPB)
- Defined behavior when the driver is unpowered （对比 DS90C031BTMX/NOPB)
设计说明
Route every LVDS output as a tightly coupled differential pair with matched impedance and a continuous reference plane beneath the traces. Avoid changing pair spacing, adding test pads that create discontinuities, or routing one conductor over a plane split. The differential signal must reach the receiver as a balanced pair; asymmetry increases common-mode conversion and can degrade both radiated noise and receiver sensitivity.
Place supply-decoupling capacitance at the DS90C031BTMX power pins and provide a low-impedance ground return close to the device. Keep high-current switching paths and connector return currents away from the supply and ground pins of the line driver. Although the device is designed for low power dissipation, inductive supply voltage movement can affect edge rate and data timing at rates above 155.5 Mbps.
Confirm receiver thresholds, cable length, connector geometry, and termination before treating 155.5 Mbps as a guaranteed end-to-end rate. The DS90C031BTMX provides a maximum propagation delay of 3.5 ns and maximum differential skew of 400 ps at 5 V and 25°C, but PCB loss, cable loss, reflections, and receiver loading can reduce the usable margin. Perform eye-diagram and timing measurements on the assembled channel.
Do not treat every DS90C031 ordering code as electrically interchangeable solely because it uses a 16-SOIC package. Confirm the exact suffix, supply range, temperature grade, revision, and receiver requirements in the manufacturer ordering information. In particular, a 3.3 V-oriented DS90LV031 alternative may require interface or layout changes and should not be substituted into a 5 V design without a full compatibility review.
合规信息
The DS90C031BTMX/NOPB is identified as RoHS3 compliant. No manufacturer statement for REACH, AEC-Q100 qualification, halogen-free status, or conflict-minerals compliance was identified.
