SN65LVDS349
- Meets or Exceeds the Requirements of ANSI
TIA/EIA-644A Standard - Single-Channel Signaling Rates up to
560 Mbps - –4 V to 5 V Common-Mode Input Voltage
Range - Flow-Through Architecture
- SN65LVDS349 Provides a Wide Common-Mode Range Replacement
for the SN65LVDS048A or the DS90LV048A - APPLICATIONS
- Logic Level Translator
- Point-to-Point Baseband Data Transmission
Over 100- Media - ECL/PECL-to-LVTTL Conversion
- Wireless Base Stations
- Central Office or PABX Switches
The SN65LVDS349 is a high-speed, quadruple differential receiver with a wide common-mode input voltage range. This allows receipt of TIA/EIA-644 signals with up to 3-V of ground noise or a variety of differential and single-ended logic levels. The 349 is in a 16-pin package to match the industry-standard footprint of the DS90LV048. The 349 offers a flow-through architecture with all inputs on one side and outputs on the other to ease board layout and reduce crosstalk between receivers.
The LVDS349 provides 3x the standards minimum common-mode noise voltage tolerance. The 4 V to 5 V common-mode range allows usage in harsh operating environments or accepts LVPECL, PECL, LVECL, ECL, CMOS, and LVCMOS levels without level shifting circuitry. See the Application Information Section for more details on the ECL/PECL to LVDS interface.
Precise control of the differential input voltage thresholds allows for inclusion of 50 mV of input-voltage hysteresis to improve noise rejection. The differential input thresholds are still no more than ±50 mV over the full input common-mode voltage range.
The receiver inputs can withstand ±15 kV human-body model (HBM), with respect to ground, without damage. This provides reliability in cabled and other connections where potentially damaging noise is always a threat.
The intended application of these devices and signaling technique is for point-to-point baseband data transmission over controlled impedance media of approximately 100 . The transmission media may be printed-circuit board traces, backplanes, or cables. The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise coupling to the environment.
The SN65LVDS349 is characterized for operation from 40°C to 85°C.
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技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | Quad High-Speed Differential Receiver 数据表 | 2010年 9月 14日 | |||
应用简报 | LVDS to Improve EMC in Motor Drives | 2018年 9月 27日 | ||||
应用简报 | How Far, How Fast Can You Operate LVDS Drivers and Receivers? | 2018年 8月 3日 | ||||
应用简报 | How to Terminate LVDS Connections with DC and AC Coupling | 2018年 5月 16日 | ||||
应用手册 | SN65LVDS348 vs SN65LVDS349 | 2010年 10月 5日 | ||||
应用手册 | An Overview of LVDS Technology | 1998年 10月 5日 |
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