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參數(shù)資料
| 型號(hào)： | ADN4662BRZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC RCVR DIFF LVDS 1CH 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 類型： | 線路接收器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 0/1 |
| 規(guī)程： | LVDS |
| 電源電壓： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 765 (CN2011-ZH PDF) |
Data Sheet
ADN4662
Rev. A | Page 11 of 12
THEORY OF OPERATION
The ADN4662 is a single line receiver for low voltage
differential signaling. It takes a differential input signal of
310 mV typically and converts it into a single-ended 3 V
TTL/CMOS logic signal.
A differential current input signal, received via a transmission
medium, such as a twisted pair cable, develops a voltage across
a terminating resistor, RT. This resistor is chosen to match the
characteristic impedance of the medium, typically around
100 Ω. The differential voltage is detected by the receiver and
converted back into a single-ended logic signal.
When the noninverting receiver input, RIN+, is positive with
respect to the inverting input RIN (current flows through RT
from RIN+ to RIN), then ROUT is high. When the noninverting
receiver input RIN+ is negative with respect to the inverting
input RIN (current flows through RT from RIN to RIN+), then
ROUT is low.
The ADN4662 differential line receiver is capable of receiving
signals of 100 mV over a ±1 V common-mode range centered
around 1.2 V. This relates to the typical driver offset voltage
value of 1.2 V. The signal originating from the driver is centered
around 1.2 V and may shift ±1 V around this center point. This
±1 V shifting may be caused by a difference in the ground
potential of the driver and receiver, the common-mode effect of
coupled noise, or both.
Using the ADN4663 as a driver, the received differential current
is between 2.5 mA and 4.5 mA (typically 3.1 mA), developing
between 250 mV and 450 mV across a 100 Ω termination resis-
tor. The received voltage is centered around the receiver offset of
1.2 V. In other words, the noninverting receiver input is typically
(1.2 V + [310 mV/2]) = 1.355 V, and the inverting receiver input
(1.2 V [310 mV/2]) = 1.045 V for Logic 1. For Logic 0, the
inverting and noninverting input voltages are reversed. Note that
because the differential voltage reverses polarity, the peak-to-peak
voltage swing across RT is twice the differential voltage.
Current mode signalling offers considerable advantages over
voltage mode signalling, such as RS-422. The operating current
remains fairly constant with increased switching frequency,
whereas with voltage mode drivers the current increases
exponentially in most cases. This is caused by the overlap as
internal gates switch between high and low, which causes currents
to flow from VCC to ground. A current mode device simply reverses
a constant current between its two outputs, with no significant
overlap currents.
This is similar to emitter-coupled logic (ECL) and positive emitter-
coupled logic (PECL), but without the high quiescent current of
ECL and PECL.
APPLICATIONS INFORMATION
Figure 23 shows a typical application for point-to-point data
transmission using the ADN4663 as the driver.
DIN
DOUT–
ROUT
RIN–
DOUT+
RIN+
100
RT
0.1F
10F
TANTALUM
10F
TANTALUM
+
VCC
0.1F
VCC
GND
ADN4661
ADN4662
3.3V
07960-
1
19
Figure 23. Typical Application Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADN4662BRZ | 制造商:Analog Devices 功能描述:Transceiver IC |
| ADN4662BRZ-REEL7 | 功能描述:IC RCVR DIFF LVDS 1CH 8SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件 |
| ADN4663 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Speed Differential Driver |
| ADN4663BRZ | 功能描述:IC DRIVER DIFF LVDS 2CH 8SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:線路收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):5/3 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:918 (CN2011-ZH PDF) 其它名稱:296-25096-6 |
| ADN4663BRZ | 制造商:Analog Devices 功能描述:Transceiver IC |
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