SN65LVDM179 - 全双工 LVDM 收发器

SN65LVDM179是TI德州仪器公司的一款多点LVDS(MLVDS/BLVDS/LVDM)产品，SN65LVDM179是全双工 LVDM 收发器，本站介绍了SN65LVDM179的封装应用图解、特点和优点、功能等，并给出了与SN65LVDM179相关的TI元器件型号供参考。

SN65LVDM179 - 全双工 LVDM 收发器 - 多点LVDS(MLVDS/BLVDS/LVDM) - LVDS/M-LVDS/ECL/CML - 德州仪器

产品描述

The SN65LVDM179, SN65LVDM180, SN65LVDM050, and SN65LVDM051 are differential line drivers and receivers that use low-voltage differential signaling (LVDS) to achieve high signaling rates. These circuits are similar to TIA/EIA-644 standard compliant devices (SN65LVDS) counterparts, except that the output current of the drivers is doubled. This modification provides a minimum differential output voltage magnitude of 247 mV across a 50- load simulating two transmission lines in parallel. This allows having data buses with more than one driver or with two line termination resistors. The receivers detect a voltage difference of 50 mV with up to 1 V of ground potential difference between a transmitter and receiver.

The intended application of these devices and signaling techniques is point-to-point half duplex, baseband data transmission over a controlled impedance media of approximately 100 characteristic impedance.

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, the noise coupling to the environment, and other application-specific characteristics.

The SN65LVDM179, SN65LVDM180, SN65LVDM050, and SN65LVDM051 are characterized for operation from –40°C to 85°C.

产品特性

Low-Voltage Differential 50- Line Drivers and Receivers
Typical Full-Duplex Signaling Rates of 100 Mbps
Bus-Terminal ESD Exceeds 12 kV
Operates From a Single 3.3-V Supply
Low-Voltage Differential Signaling With Typical Output Voltages of 340 mV With a 50- Load
Valid Output With as Little as 50-mV Input Voltage Difference
Propagation Delay Times
- Driver: 1.7 ns Typical
- Receiver: 3.7 ns Typical
Power Dissipation at 200 MHz
- Driver: 50 mW Typical
- Receiver: 60 mW Typical
LVTTL Input Levels Are 5-V Tolerant
Driver Is High Impedance When Disabled or With VCC < 1.5 V
Receiver Has Open-Circuit Failsafe

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