DS90C031B屬于集成電路（IC）的驅(qū)動(dòng)器接收器收發(fā)器。由美國(guó)德州儀器公司制造生產(chǎn)的DS90C031B驅(qū)動(dòng)器，接收器，收發(fā)器該系列產(chǎn)品的主要功能是提供必需的硬件資源，以通過延長(zhǎng)電纜或印制線進(jìn)行通信。確切的功能會(huì)因所采用的通信協(xié)議而異，可能包括諸如瞬態(tài)抑制之類的功能，這些功能對(duì)于通信用途可能并非絕對(duì)必要，但對(duì)于可能的使用環(huán)境卻是明智之選。

1FEATURES

2? >155.5 Mbps (77.7 MHz) switching rates

? High impedance LVDS outputs with power-off

? ±350 mV differential signaling

? Ultra low power dissipation

? 400 ps maximum differential skew (5V, 25°C)

? 3.5 ns maximum propagation delay

? Industrial operating temperature range

? Pin compatible with DS26C31, MB571 (PECL)

and 41LG (PECL)

? Conforms to ANSI/TIA/EIA-644 LVDS standard

? Offered in narrow body SOIC package

? Fail-safe logic for floating inputs

DESCRIPTION

The DS90C031B is a quad CMOS differential line

driver designed for applications requiring ultra low

power dissipation and high data rates. The device

supports data rates in excess of 155.5 Mbps (77.7

MHz) and uses Low Voltage Differential Signaling

(LVDS) technology.

The DS90C031B accepts TTL/CMOS input levels and

translates them to low voltage (350 mV) differential

output signals. In addition the driver supports a TRI-

STATE function that may be used to disable the

output stage, disabling the load current, and thus

dropping the device to an ultra low idle power state of

11 mW typical.

In addition, the DS90C031B provides power-off high

impedance LVDS outputs. This feature assures

minimal loading effect on the LVDS bus lines when

VCC is not present.

The DS90C031B and companion line receiver

(DS90C032B) provide a new alternative to high

power pseudo-ECL devices for high speed point-topoint

interface applications.